Argus Overcurrent Protection Relays

Product Documentation
Argus Overcurrent Protection Relays
P1001 issue 2004/05
DOCUMENTATION SET
Argus Overcurrent Protection Relays
Complete Product Documentation set
P1001
The following documents are contained within the set.
•
•
•
•
Argus User Manual
Argus Overcurrent Technical Reference
Argus 1 Diagrams and Parameters
Argus 2 Diagrams and Parameters
P20006 issue 2004/05
P20007 issue 2004/05
P20008 issue 2004/05
P20009 issue 2004/05
These documents can be provided on request to VA TECH Reyrolle ACP Ltd. on +44 191 401 1111.
They can also be found on our website at www.reyrolle-protection.com.
The copyright and other intellectual property rights in this document, and in any model or article produced from it (and including
any registered or unregistered design rights) are the property of VA TECH Reyrolle ACP Limited. No part of this document shall
be reproduced or modified or stored in another form, in any data retrieval system, without the permission of VA TECH Reyrolle
ACP Limited, nor shall any model or article be reproduced from this document unless VA TECH Reyrolle ACP Limited consent.
While the information and guidance given in this document is believed to be correct, no liability shall be accepted for any loss or
damage caused by any error or omission, whether such error or omission is the result of negligence or any other cause. Any
and all such liability is disclaimed.
P1001 issue 2004/05
Numerical Multi-Function Overcurrent Protection Relay
P1001 issue 2004/05
SCOPE
This manual applies to the Argus relays listed in the following table.
The table uses two references for most relays, each of which is valid:
• an ‘Order code’ of the form AGn-nnn, and
• a ‘Type’ of the form DCDnnnX or GAFnnnX
where n is a digit and X is a letter.
Standard Models
All of the types and ordering codes below refer to
• Epsilon case, and
• ST fibre-optic connectors optimised for 62.5/125 µm glass fibre.
On request it may be possible to supply equivalent models fitted with
• SMA fibre-optic connectors optimised for 62.5/125 µm glass fibre, or
• SMA fibre-optic connectors optimised for 1 mm plastic fibre.
• RS 485 Electrical communications
• All relays are 1A/5A rated unless otherwise stated in the following table.
Series
Description
Order code / Type
Protection
I/O
30/48 aux.
30V status
Argus 1
Single phase-fault or earth-fault
Overcurrent
protection
Sensitive earth-fault
110V status
220V status
DCD111A
AG1-102
DCD114A
DCD115A
DCD116A
DCD121A
AG1-103
DCD123A
AG1-104
DCD124A
DCD125A
DCD126A
DCD311A
AG1-301
DCD313A
AG1-302
DCD314A
DCD315A
DCD316A
5 SI
11 OR DCD311B
AG1-311
DCD313B
AG1-312
DCD314B
DCD315B
DCD316B
9 SI
7 OR
DCD311C
AG1-321
DCD313C
AG1-322
DCD314C
DCD315C
1 SI
7 OR
DCD321A
AG1-303
DCD323A
AG1-304
DCD324A
DCD325A
5 SI
11 OR DCD321B
AG1-313
DCD323B
AG1-314
DCD324B
9 SI
7 OR
DCD321C
AG1-323
DCD323C
AG1-324
DCD324C
1 SI
7 OR
DCD411A
AG1-401
DCD413A
AG1-402
DCD414A
DCD415A
DCD416A
5 SI
11 OR DCD411B
AG1-411
DCD413B
AG1-412
DCD414B
DCD415B
DCD416B
9 SI
7 OR
AG1-421
DCD413C
AG1-422
DCD414C
DCD415C
DCD416C
3 phase-fault and earth-fault 1A
3 SI
5 OR
AG1-431
AG1-433
3 phase-fault and earth-fault 5A
3 SI
5 OR
AG1-432
AG1-434
AG1-403
DCD423A
AG1-404
DCD424A
DCD425A
DCD426A
AG1-413
DCD423B
AG1-414
DCD424B
DCD425B
DCD426B
AG1-423
DCD423C
AG1-424
DCD424C
DCD425C
DCD426C
2 phase-fault and earth-fault
2 phase-fault and SEF
3 phase-fault and earth-fault
3 phase-fault and SEF, or
1 SI
7 OR
1 SI
7 OR
1 SI
7 OR
DCD411C
DCD421A
5 SI
2 phase-fault, earth-fault and SEF 11 OR DCD421B
9 SI
7 OR DCD421C
Page 2 of 4
110/220 aux.
48V status
AG1-101
DCD113A
3 phase-fault, or
1 SI
7 OR
48V status
Numerical Multi-Function Overcurrent Protection Relay
P1001 issue 2004/05
Series
Description
Order code / Type
Protection
I/O
30/48 aux.
30V status
Argus 2
Directional
overcurrent
protection
Directional earth-fault
1 SI
7 OR
Directional sensitive earth-fault
1 SI
7 OR
3 directional phase-fault
2 directional phase-fault and SEF
2 directional phase-fault and
directional earth-fault
2 phase-fault and dir’n. earth-fault
3 directional phase-fault and
directional earth-fault
3 directional phase-fault and SEF
3 phase-fault and
directional earth-fault
3 directional phase-fault and
directional earth-fault
voltage and power
measurements
3 dir’n. phase-fault and SEF, or
2 dir’n. P/F, dir’n. E/F and SEF
voltage and power
measurements
Argus 4
3 phase-fault and earth-fault
Overcurrent
protection & 3 phase-fault and SEF, or
autoreclose 2 phase-fault, earth-fault and SEF
Argus 6
3 directional phase-fault and
Directional
directional earth-fault
overcurrent
protection & 3 directional phase-fault and SEF
autoreclose
3 phase-fault and dir’n. earth-fault
48V status
110/220 aux.
48V status
110V status
220V status
DCD211A
AG2-101
DCD213A
AG2-102
DCD214A
DCD215A
DCD216A
DCD221A
AG2-103
DCD223A
AG2-104
DCD224A
DCD225A
DCD226A
5 SI
11 OR DCD611B
AG2-311
DCD613B
AG2-312
DCD614B
DCD615B
DCD616B
9 SI
7 OR
DCD611C
AG2-321
DCD613C
AG2-322
DCD614C
DCD615C
DCD616C
5 SI
11 OR DCD621B
AG2-313
DCD623B
AG2-314
DCD624B
DCD625B
DCD626B
9 SI
7 OR
DCD621C
AG2-323
DCD623C
AG2-324
DCD624C
DCD625C
DCD626C
5 SI
11 OR DCD631B
AG2-315
DCD633B
AG2-316
DCD634B
DCD635B
DCD636B
9 SI
7 OR
DCD631C
AG2-325
DCD633C
AG2-326
DCD634C
DCD635C
DCD636C
5 SI
11 OR DCD641B
AG2-317
DCD643B
AG2-318
DCD644B
DCD645B
DCD646B
9 SI
7 OR
DCD641C
AG2-327
DCD643C
AG2-328
DCD644C
DCD645C
DCD646C
5 SI
11 OR DCD811B
AG2-411
DCD813B
AG2-412
DCD814B
DCD815B
DCD816B
9 SI
7 OR
DCD811C
AG2-421
DCD813C
AG2-422
DCD814C
DCD815C
DCD816C
5 SI
11 OR DCD821B
AG2-413
DCD823B
AG2-414
DCD824B
DCD825B
DCD826B
9 SI
7 OR
DCD821C
AG2-423
DCD823C
AG2-424
DCD824C
DCD825C
DCD826C
5 SI
11 OR DCD831B
AG2-415
DCD833B
AG2-416
DCD834B
DCD835B
DCD836B
9 SI
7 OR
DCD831C
AG2-425
DCD833C
AG2-426
DCD834C
DCD835C
DCD836C
5 SI
11 OR DCD911B
AG2-511
DCD913B
AG2-512
DCD914B
DCD915B
DCD916B
9 SI
7 OR
DCD911C
AG2-521
DCD913C
AG2-522
DCD914C
DCD915C
DCD916C
5 SI
11 OR DCD921B
AG2-513
DCD923B
AG2-514
DCD924B
DCD925B
DCD926B
9 SI
7 OR
AG2-524
DCD924C
DCD925C
DCD926C
DCD921C
AG2-523
DCD923C
9 SI
7 OR
GAF431C
AG4-401
GAF433C
AG4-402
GAF434C
9 SI
7 OR
GAF441C
AG4-403
GAF443C
AG4-404
GAF444C
9 SI
7 OR
GAF911C
AG6-401
GAF913C
AG6-402
GAF914C
9 SI
7 OR
GAF921C
AG6-403
GAF923C
AG6-404
GAF924C
9 SI
7 OR
GAF931C
AG6-405
GAF933C
AG6-406
GAF934C
GAF445C
GAF915C
Page 3 of 4
Numerical Multi-Function Overcurrent Protection Relay
P1001 issue 2004/05
STRUCTURE OF DOCUMENT SET
Product Documentation Set
Argus Overcurrent Protection Relays
User Manual
Relay Description
Operation Guide
Installation
Commissioning
Testing and Maintenance
P20006
Technical Reference
Performance Specification
Functional Description
Application Notes
Communication Interface
P20007
Diagrams and Parameters
Variants
Settings
IEC 60870-5-103 Definitions
Application Diagrams
P20008
Argus 1
P20009
Argus 2
P20010
P20011
Argus 4
Argus 6
P1001
P300013 Argus Overcurrent Doc Structure
Page 4 of 4
User Manual
Argus Protection Relays
P20006 issue 2004/05
DOCUMENTATION SET
This document is part of a set. The full list of documents in the set and the publication numbers under
which they can be ordered are given below. These documents can be provided on request to VA
TECH Reyrolle ACP Ltd. on +44 191 401 1111. They can also be found on our website at
www.reyrolle-protection.com.
Argus Overcurrent Protection Relays
Complete Product Documentation set
P1001
•
•
•
•
•
•
P20006 issue 2004/05
P20007 issue 2004/05
P20008 issue 2004/05
P20009 issue 2004/05
P20010 issue 2002/12
P20011 issue 2002/12
Argus User Manual
Argus Overcurrent Technical Reference
Argus 1 Diagrams and Parameters
Argus 2 Diagrams and Parameters
Argus 4 Diagrams and Parameters
Argus 6 Diagrams and Parameters
The copyright and other intellectual property rights in this document, and in any model or article produced from it (and including
any registered or unregistered design rights) are the property of VA TECH Reyrolle ACP Limited. No part of this document shall
be reproduced or modified or stored in another form, in any data retrieval system, without the permission of VA TECH Reyrolle
ACP Limited, nor shall any model or article be reproduced from this document unless VA TECH Reyrolle ACP Limited consent.
While the information and guidance given in this document is believed to be correct, no liability shall be accepted for any loss or
damage caused by any error or omission, whether such error or omission is the result of negligence or any other cause. Any
and all such liability is disclaimed.
P20006 issue 2004/05
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
DOCUMENT RELEASE HISTORY
This document is issue 2004/05. The list of revisions up to and including this issue is:
2004/05
Second issue:- Improved CBF function, additional metering , Modbus protocol, extended timers
added
2002/12
First issue
SOFTWARE VERSIONS
Since introduction in 1995, Argus overcurrent relays have undergone a number of modifications to
improve functionality and features provided. The content of this manual is directly applicable to the
software versions listed below. When used with other versions minor variations may be noticed. A
detailed release history for each type is given in the appropriate Diagrams and Parameters document.
• Argus 1 and Argus 2 – 2434H80023 R6 (release date April 2004)
• Argus 2-500 – 2434H80040R4 (release date April 2004)
• Argus 4 and Argus 6 – 2716H80005 R4 (release date April 2004)
HARDWARE RELEASE HISTORY
Since introduction in 1995, Argus overcurrent relays have undergone a number of minor changes to
hardware. The content of this manual is directly applicable to Argus hardware in Epsilon cases
produced since March 2002. When used with earlier versions, minor variations may be noticed. A
detailed release history for each type is given in the appropriate Diagrams and Parameters document.
Page 2 of 40
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
CONTENTS
Documentation Set ...........................................................................................................................1
Document Release History............................................................................................................... 2
Software Versions.............................................................................................................................2
Hardware Release History................................................................................................................ 2
Contents............................................................................................................................................ 3
List of Figures................................................................................................................................... 4
List of Tables .................................................................................................................................... 4
Section 1: Relay Description............................................................................................................ 5
1.1 Overview..............................................................................................................................5
1.2 Hardware .............................................................................................................................5
1.3 Functionality.........................................................................................................................8
Section 2: Operation Guide ............................................................................................................ 14
2.1 User Interface Operation .................................................................................................... 14
2.2 Operation using ReyDisp Evolution (IEC 60870-5-103 comms only) ................................... 17
Section 3: Installation..................................................................................................................... 19
3.1 Unpacking, Storage and Handling ...................................................................................... 19
3.2 Recommended Mounting Position...................................................................................... 19
3.3 Relay Dimensions .............................................................................................................. 19
3.4 Wiring ................................................................................................................................ 19
3.5 Fixings ............................................................................................................................... 20
3.6 Ancillary Equipment ........................................................................................................... 20
Section 4: Commissioning ............................................................................................................. 21
4.1 Before Testing ................................................................................................................... 21
4.2 Tests.................................................................................................................................. 22
4.3 Putting into Service ............................................................................................................ 30
4.4 Commissioning Record Tables........................................................................................... 31
Section 5: Testing and Maintenance.............................................................................................. 38
5.1 Periodic Tests .................................................................................................................... 38
5.2 Maintenance ...................................................................................................................... 38
5.3 Troubleshooting ................................................................................................................. 38
5.4 Defect Report..................................................................................................................... 40
Page 3 of 40
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
LIST OF FIGURES
Figure 1-1
Figure 2-1
Figure 4-1
Figure 4-2
Figure 4-3
Figure 4-4
Figure 4-5
Figure 4-6
Figure 4-7
Figure 4-8
Overcurrent Characteristics.............................................................................................8
Menu Structure for Argus 1, 2, 4 and 6 Relays .............................................................. 15
Directional Earth Fault Boundary System Angles........................................................... 26
Directional Phase Fault Boundary System Angles ......................................................... 26
Secondary Injection Test Circuit .................................................................................... 36
Directional Test Circuit .................................................................................................. 36
Two-out-of-three Directional Test Circuit........................................................................ 36
Phase to Earth Primary Injection Test Circuit................................................................. 36
Phase to Phase Primary Injection Test Circuit ............................................................... 36
Resultant Applied Voltages and Currents for a Simulated Earth Fault
Condition using Load Current ........................................................................................ 37
LIST OF TABLES
Table 3-1
Table 4-1
Table 4-2
Table 4-3
Table 4-4
Table 4-5
Table 4-6
Table 4-7
Table 4-8
Table 4-9
Table 4-10
Table 4-11
Table 4-12
Table 4-13
Table 4-14
Table 4-15
Table 4-16
Table 4-17
Table 4-18
Table 5-1
Page 4 of 40
Wire crimp sizes............................................................................................................ 20
IDMTL Timing Characteristic (Time in Seconds) ............................................................ 23
Connections for Directional Polarity............................................................................... 25
Limits of Operate Pick-up Relay Angle Boundaries........................................................ 27
Pick-up/Drop-off Results................................................................................................ 31
Timing Characteristic Results........................................................................................ 31
Lowset setting results.................................................................................................... 31
Highset 1 setting results ................................................................................................ 32
Highset 2 setting results ................................................................................................ 32
Lowset timing results..................................................................................................... 32
Highset 1 timing results ................................................................................................. 32
Highset 2 timing results ................................................................................................. 32
Pick-up/Drop-off Results for SEF/REF........................................................................... 33
SEF/REF Timing Results............................................................................................... 33
Pick-up/Drop-off Results for CBF Level Detector ........................................................... 33
Circuit Breaker Fail Timing Results................................................................................ 33
Directional Boundaries of Operation .............................................................................. 34
Auto-reclose Sequences and settings............................................................................ 34
Primary Injection Results............................................................................................... 35
Troubleshooting Guide .................................................................................................. 38
Section 1: Relay Description
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Section 1: Relay Description
1.1
OVERVIEW
The Argus range of overcurrent protection combines the power and flexibility of microprocessor
technology with decades of experience in the field of overcurrent protection and auto-reclose. A wide
range of protection elements are supplemented by advanced features such as control, metering, data
storage and fibre-optic based communications.
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1.2
IDMTL phase overcurrent stage (50/51)
3 DTL phase overcurrent stages (50)
IDMTL earth-fault stage (50N/51N)
3 DTL earth-fault stages (50N)
2 instantaneous and DTL SEF/REF stages with harmonic rejection (50N)
Trip circuit supervision (74TC)
Circuit breaker failure protection (50BF)
Single pole, three pole and four pole variants
True RMS measurement
Status inputs with independent pick-up and drop-off timers and logic inversion to reduce scheme
engineering
Flexible supply voltage ranges
Low AC/DC burden
Eight independent settings groups
Self, hand and electrical reset contacts
Extensive fault, sequence of event and disturbance recorder
IEC60870-5-103 fibre-optic communications
Modbus RTU communications
Continuous self-supervision of operation and power supply
HARDWARE
1.2.1 Case
The Argus relay is housed in a drawout case designed for either panel mounting or modular 19”
racking systems.
The case is 4U (177 mm) high and will be of size 4, size 6 or size 8 width.
The chassis of the Argus can be withdrawn from the case by pulling on the handles provided. Shorting
contacts ensure that CT circuits and normally closed contacts remain short-circuited. All output
contacts will be disconnected before any input contacts in order to prevent maloperation.
The rear terminals are designed to take two wires terminated using ring crimps and are secured using
M4 screws.
1.2.2 Front Cover
After the Argus has been commissioned it is sealed by fixing a clear plastic cover over the front. This
allows the user to see the entire front of the relay, but only allows access to the 6 and 4 buttons,
allowing all of the menus to be viewed but not changed. The only ‘action’ which is permitted is to reset
the Fault Data Display, latched output relays and the trip LED by using the TEST/RESET function of
the 4 button.
1.2.3 User Interface / Fascia
The user interface is designed to provide a user friendly method of entering settings and retrieving
data from the Argus relay.
Page 5 of 40
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Section 1: Relay Description
Relay Information
The Reyrolle logo appears in the top left corner of the Argus.
At the top right an information label is provided which contains the range name (Argus 1, Argus 2,
Argus 4 or Argus 6), model number, serial number and nominal ratings of energising quantities.
Liquid Crystal Display
A 2 line, 16 character backlit liquid crystal display (LCD) is used to present settings, instruments and
fault data in a textual format. The display backlighting is turned off to conserve power if no
pushbuttons are pressed for 5 minutes. After an hour, the whole display is de-activated, except in the
case of the instruments, which remain visible permanently.
‘Protection Healthy’ LED
This green LED indicates that DC volts have been applied to the Argus and that the relay is operating
correctly. If a permanent fault is detected by the internal watchdog, then this LED will continuously
flash.
‘Starter’ LED
This self-resetting yellow LED indicates that any pole is measuring current above the IDMTL/DTL
current setting.
‘Trip’ LED
This latching red LED indicates that a trip, as defined by customer setting, has occurred. Such a trip
may have been issued by any of the protection functions. The user will be given more detailed
information concerning the trip from the LCD screen.
After being energised the LED can be reset by pressing the TEST/RESET key, or by energising a
status input which has been programmed to reset latched relays and the trip LED.
‘CB Open’ LED
Argus 4 and Argus 6 only.
This green LED indicates that the circuit breaker is open.
‘CB Closed’ LED
Argus 4 and Argus 6 only.
This red LED indicates that the circuit breaker is closed.
Keypad
Five keys are provided to control the functions of the Argus by moving around the menu display. They
are labelled: 5, 6, ENTER, CANCEL and 4. The 4 key is also labelled TEST/RESET.
Only two push buttons are accessible when the front cover is in place. These are the 6 and 4
buttons which allow the user to view all displays, including settings, but not to change setting values.
1.2.4 Current and Voltage Inputs
Current Inputs
Two types of current input are incorporated within the Argus range. One type of input is used for
phase fault and earth fault protection, while the other is used for sensitive earth fault and restricted
earth fault protection. The current inputs can be configured for operation with either 1A or 5A
transformers. The appropriate connections are required on the terminal blocks and the CT rating must
be set as required.
Voltage Inputs
Argus 2 and Argus 6 only - Voltage inputs are used for setting the direction of the overcurrent
elements and up to 4 voltage inputs are provided.
Page 6 of 40
Section 1: Relay Description
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
In most models voltage inputs for the phase voltages must be connected phase-phase, while a
separate open-delta VT must provide the neutral voltage. In some models, however, the option is
given to connect 3 voltage inputs in a star configuration.
Each voltage input is capable of being connected to VTs with a nominal 63.5V or 110V secondary
voltage.
1.2.5 Status Inputs and Output Relays
Four configurations of digital I/O are available:
•
•
•
•
1 status input, 7 output relays (3 changeover, 4 normally open)
3 status inputs, 5 output relays (3 changeover, 2 normally open)
5 status inputs, 11 output relays (3 changeover, 8 normally open)
9 status inputs, 7 output relays (3 changeover, 4 normally open)
Single pole Argus relays are only available with 1 status input and 7 output relays.
Status Inputs
Status inputs can be programmed to perform one or more of the following functions:
•
•
•
•
•
•
•
•
•
•
•
•
Switch to an alternative settings group
Trigger the storage of a waveform record
Trigger a textual fault record
2
Trigger operation of the I summation and trip count features
Inhibit operation of any one or more protection functions
Monitor the health of the tripping circuit
Synchronise the real-time clock
Reset of latched output contacts
Reset of counter instruments
Start an auto-reclose sequence
Register a general alarm
Initiate an external circuit breaker fail condition
Additionally, each input can be independently programmed to operate with time delayed pick-up
and/or time delayed drop-off. The status inputs have a default pick-up delay setting of 20ms which
provides security against operation in the presence of an a.c. input voltage. If instantaneous operation
is preferred then the pick-up delay should be set to zero.
It is also possible to invert the operation of a status input. If an input is configured to be inverted, then
any function assigned to that input becomes active upon de-energisation of the input.
Output Relays
Outputs are user programmable to operate from any or all of the protection characteristics. In addition
2
they can be programmed to generate outputs from the I summation alarm, the trip counter alarm, the
status inputs and the self-monitoring feature (watchdog). In their normal mode of operation, output
contacts remain energised for the duration of fault current, but with a user programmable minimum
time. Alternatively, outputs can be programmed to operate as latching contacts if required. Latched
output relays can be reset either by pressing the TEST/RESET button, by sending an appropriate
communications command or electrically via a status input. A trip test feature is provided to operate
the output contacts.
1.2.6 Auxiliary Supply
A d.c. voltage of the appropriate level must be supplied onto the correct terminals on the rear of the
case.
1.2.7 Communications
A pair of fibre-optic STTM (BFOC/2.5) bayonet connectors, optimised for glass-fibre, are fitted to the
rear of the case – one transmit and one receive. These are used as the standard interface for all
communications with the Argus. An alternative RS485 option is available.
The Argus is supplied using IEC 60870-5-103 as its default communications. Modbus is available via
a setting in the communications menu.
Page 7 of 40
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Section 1: Relay Description
1.2.8 Terminals
These are of a modular design. Depending on the model either 1, 2 or 3 terminal blocks will be fitted
with 28 terminals per block. All inputs and outputs (except for the serial communications interface) are
made through these connectors.
1.3
FUNCTIONALITY
1.3.1 Protection
Argus provides comprehensive overcurrent protection with programmable input and output matrix. In
addition 8 setting groups enable a flexible approach to protection settings.
Up to four current measuring inputs are available in the Argus relays and these may be phase-fault
overcurrent, earth-fault overcurrent or SEF/REF depending on the model.
1.3.1.1 Phase-fault and Earth-fault Overcurrent
Phase-fault and earth-fault inputs each have four independent overcurrent elements. Each has a
current setting and timing characteristic as illustrated in Figure 1-1.
The principal overcurrent element is selectable between IDMTL (inverse definite minimum time lag)
and DTL (definite time lag) characteristics. Four IDMTL curves are available, namely normal inverse
(NI), very inverse (VI), extremely inverse (EI) and long time inverse (LTI). The IDMTL algorithms
operate correctly for developing faults where current varies with time.
Two independent highsets and an independent lowset are included with shaped instantaneous
characteristics and DTL. The instantaneous outputs are designed for transient free operation where
high values of system X/R are experienced.
Time
IS IDMTL current setting
tM time multiplier
IHS1 highset 1 current setting
tHS1 highset 1 time delay setting
IHS2 highset 2 current setting
tHS2 highset 2 time delay setting
ILS lowset current setting
tLS lowset time delay setting
IS
tM
ILS
IHS1
tHS1
IHS2
tHS2
tLS
Current
Figure 1-1 Overcurrent Characteristics
1.3.1.2 Sensitive Earth-fault/Restricted Earth-fault
Sensitive earth-fault and restricted earth-fault protection schemes are achieved with identical internal
functionality. They incorporate filtering for rejection of second, third and higher harmonics of the power
system frequency.
Page 8 of 40
Section 1: Relay Description
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Two DTL timers and a lowset characteristic are provided. The lowset does not have an independent
current setting in this case. The delayed reset function operates on the two DTL timers.
1.3.1.3 Directional Control
Argus 2 and Argus 6 only.
Directional elements are available for phase-fault and earth-fault as an ordering option. Bi-directional
elements provide independent characteristic, current and time settings for each direction of each
overcurrent stage. In models with three phase-fault directional elements, single-phase or two-out-ofthree directional decisions are available.
In most models, the phase fault characteristic angles are selectable from +30° and +45°; the earthfault characteristic angle is selectable from 0°, -15°, -45° and -65°.
In Argus 2 models with voltage and power measurement, the phase-fault and earth-fault characteristic
angles are selectable to any angle between -90° and + 90° in 1° steps.
1.3.1.4 Voltage Protection
Certain Argus 2 models only.
A three-phase voltage element with definite time delay is provided which can be used to provide a trip
or alarm output, or can be set to block any of the overcurrent elements. The element can be set to
undervoltage or overvoltage with variable hysteresis. Overcurrent blocking occurs from each phase
independently, but a common trip output is provided.
1.3.1.5 Cold Load Pickup
Argus 4 and Argus 6 only.
The Argus can apply higher current settings with longer time delays, after the circuit breaker has been
open for a programmable time. On closing of the circuit breaker these higher settings are applied for a
programmable time or until the measured current has fallen to normal levels.
1.3.1.6 Circuit Breaker Fail
The circuit breaker fail function operates by monitoring the current following a trip signal and issues an
alarm if the current does not cease within a specified time interval. A two-stage time delayed output
can be used to operate output contacts to retrip the same circuit breaker, using a second trip coil, or to
backtrip an upstream circuit breaker.
The CBF timer 1 starts to operate following a trip output from any one of the protection algorithms or
an external input, providing there is current above the circuit breaker fail current setting. An output is
issued after the CBF timer 1 delay. If current is still above the setting, CBF timer 2 then begins to
operate and will issue a second output after the CBF timer 2 delay.
1.3.2 Control
1.3.2.1 Autoreclose
Argus 4 and Argus 6 only.
Integrated auto-reclose is available as an ordering option. The Argus incorporates a 5 trip/4 close
auto-reclose sequence that can be initiated by an internal or external signal. For each type of
protection trip - phase-fault, earth-fault, SEF or external - a separate sequence of instantaneous and
delayed trips is available. Programmable dead times and reclaim times with a wide setting range and
integrated sequence co-ordination enable virtually all distribution auto-reclose schemes to be
achieved.
1.3.3 Plant Monitoring
1.3.3.1 Trip Circuit Supervision
An Argus relay can monitor its associated trip circuit by configuring one of its status inputs using the
‘Trip Circuit Fail’ setting and connecting the input into the trip circuit (refer to the applications guide for
details of how this is achieved). Indication is then given instantaneously of ‘Trip Circuit Failure’ should
a fault be detected, this display also identifies which input has detected the fault. Since the status
Page 9 of 40
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Section 1: Relay Description
inputs can be programmed to operate output contacts, an alarm output can also be generated from
the trip circuit supervision feature.
1.3.3.2 Circuit Breaker Maintenance
2
The I summation feature and the trip counter provide circuit breaker condition monitoring. Alarm
outputs with programmable settings are available for both features.
This information is accessed either from the front panel or via the communications interface. The
2
values of current used for the I summation are those measured at the time of issuing a trip signal. An
2
I sum is generated for each phase element and the highest value is used for alarm and display
2
purposes. It is also possible to initiate the I summation algorithm from an external tripping device via
the status input if required.
2
The trip count and the I summation count can be reset by either of two methods:
• when viewing the appropriate instrument screen and pressing the TEST/RESET button
• in the settings menu using appropriate reset setting
1.3.4 Measurements
Analogue values can be displayed in primary or secondary quantities on the LCD screen. In addition
the values can be obtained via the communications port.
Available Instruments
• Primary current – RMS values on a phase-by-phase basis, indicated by upper case letters, e.g. A,
B, C, E, SE (sensitive earth)
• Secondary current – RMS values on a phase-by-phase basis, indicated by lower case letters, e.g.
a, b, c, e, se
• Primary phase voltages *
• Primary phase-phase voltages *
• Secondary voltages *
• Apparent power and power factor *
• Real and reactive power *
• WHr forward and reverse *
• VarHr forward and reverse *
• Rolling and Max demand Ia, Ib, Ic
• Rolling and Max demand W*
• Rolling and Max demand Var*
• Direction *
• Autoreclose status *
• Output contacts
• Status inputs
• Trip circuit healthy/failure
• Trip counters
2
• I summation
• Number of waveform and event records stored
• Time and date
• Starters
• Power on counter
* Instruments marked * are not available in all models – consult ordering information and the
appropriate ‘Diagrams and Parameters’ document.
Note: The rolling demand measurements can be configured to measure over a rolling window with the
following ranges:
OFF, 0.25, 0.5… 1.0, 1.5... 5.0, 6.0... 12.0, 16.00... 24.0 hours
General Alarm Screens
The Argus has an independent display function that provides up to five General Alarm screens, each
of which may be programmed by the user to display a message associated with an external alarm.
Within the System Configuration Menu, each General Alarm message can be text edited by the user
to display up to 13 characters. Also, each General Alarm can be user mapped to any status input, via
Page 10 of 40
Section 1: Relay Description
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
the Status Configuration Menu, so that on energisation of that input the associated alarm message is
automatically displayed. Where more than one General Alarm is raised then the display will scroll right
to left to show all energised screens sequentially, with screens separated by a ‘+’ sign. If required,
more than one alarm may be mapped to a single status input, allowing long messages to be
displayed.
Default Instrumentation Screens
The menu presentation of the various instruments allows the user to view a single screen at a time.
However, for in-service use, it is desirable that a small number, of high interest, user selectable,
screens are presented automatically by default without user intervention e.g. Ammeter display of the
Primary Load Currents and in addition the TRIP Count.
The screens of interest to the user, e.g. those required to be presented to a visiting engineer for record
purposes, can be selected by the user by pressing ENTER when viewing the required screen. A
‘Screen Set As Default’ message will be flashed up and ‘ ’ will appear at top right of that screen. To
cancel a screen default, scroll to that screen and press ENTER, ‘Screen Cleared As Default’ will be
flashed up and the ‘ ’ symbol will be cleared.
If no button is pressed for the duration of the user set “Default Time Delay”, then each Default Screen
is displayed in turn, for five seconds each. If any General Alarm is raised, then the General Alarm
screen is presented in the Default Screen sequence. The General Alarm screen, which has a scrolling
display will present one pass of its display. Any key press while in default screens will result in a
return to the “Relay Identifier” screen at the top of the menu structure.
1.3.5 System Data
Data records are available in three forms: fault records, waveform records and event records.
1.3.5.1 Time Stamping
All records are stamped with time and date using the Argus’ real-time clock feature. If the Argus is deenergised then a capacitor provides a back-up supply to the real-time clock for a limited period. Time
and date can be set either via the fascia using appropriate commands in the System Configuration
Menu, or via the communications interface. In the latter case, Argus relays connected in a
communications network can be synchronised by a global command.
Synchronising pulses can be received via a status input. To use this feature one of the status inputs
must be assigned to the ‘Clock Sync’ feature in the Status Configuration Menu. Additionally the ‘Clock
Sync Period’ setting in the System Configuration Menu should be set either to ‘Seconds’ or to
‘Minutes’ as appropriate, depending on the period of the synchronising signals expected from the
controlling device. If ‘Seconds’ are selected then energisation of the selected status input will result in
the clock being synchronised to the nearest second with milliseconds set to zero. If ‘Minutes’ are
selected then the clock is synchronised to the nearest minute with seconds and milliseconds set to
zero.
1.3.5.2 Fault Records
The last 5 fault records are available from the Argus fascia with time and date of trip, measured
quantities and type of fault.
When issuing a trip output under fault conditions the Argus illuminates its TRIP LED, stores a fault
record and displays the fault indication screen. The fault indication screen displays a summary of the
fault record, giving immediate, simple information on what has occurred. It displays date (DD/MM),
time (HH:MM:SS) and the poles which were picked up when the trip signal was issued, for example:
25/04 17:25:51
TRIP A E
This display is held until the TEST/RESET button is pressed, upon which the LED turns off and any
latched output relays are reset. The Argus enters ‘Fault Data Display Mode’ at which point the fault
indication screen is replaced with a more detailed scrolling fault data display.
Fault 1
<<<fault data>>>
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Section 1: Relay Description
This shows date and time of fault, the active settings group at the point of trip, plus, for each pole the
elements picked up and the current measured at the time of trip. The information scrolls along the
bottom line of the display. External alarms are also shown in the fault record.
e.g. 12/05/04 15:32:47.2525 G1 PHASE A LS <IDMTL> HS1 HS2 IA = 12.32xIn...
The fault record is viewed in the ‘Fault Data Display Mode’ of the menu display system and can be
viewed again at a later date. Fault records are stored for the previous five faults. The five displays are
numbered from 1 to 5 with fault 1 indicating the most recent record. It is necessary to define a ‘fault’
for these purposes. Depending on the application, some of the protection outputs may be used for
alarm purposes rather than for tripping. In such cases it would be undesirable for the Argus to light its
TRIP LED and give fault indication.
Therefore, a ‘Fault Trigger’ setting is included to allow the fault condition to be defined by selecting
any combination of output relays as tripping outputs. The TRIP LED and the fault record storage will
be triggered when any of the selected output relays are energised. Note that a trip output can still be
generated even if the ‘fault trigger’ setting is not used, but no trip indication is given. Fault records are
stored in non-volatile memory.
1.3.5.3 Disturbance Recorder
The waveform record feature stores analogue and digital information for all current inputs, status
inputs and output relays. On some relays voltage signals are also stored. The ‘Waveform Trigger’
setting is used to enable the waveform record feature. Waveform storage is triggered by operation of
any function selected in the ‘waveform trigger’ setting. In addition, a record can be triggered remotely
via a status input or via the serial communications interface. Waveforms are stored in a 1 second,
rolling ‘time window’. The 1 second data window has a settable pre-fault triggering capability. There is
capacity to store five waveform records, with any new record over-writing the oldest. All records are
time and date stamped. Waveform records are stored in RAM with a capacitor providing back-up
during breaks in auxiliary supply.
The waveform record store can be erased when viewing the “waveforms” instrument screen and
pressing the TEST/RESET button.
1.3.5.4 Sequence of Event Records
The Argus event recorder feature allows the time tagging of any change of state. Each event is logged
with the full date and time and actual event condition every 2.5msec. The following events are logged:
• Change of setting (though not the actual setting changes). Also indication of which group of
settings is active
• Change of state of output relays
• Change of state of status inputs
• Change of state of any protection characteristic
• Trip indication reset
• Trip test
• Trip supply failure
• Circuit Breaker maintenance alarms
• Circuit breaker failure
The event storage buffer holds 500 records. When the event buffer is full, then any new record
overwrites the oldest.
Event records are stored in RAM with a capacitor providing back-up during breaks in auxiliary supply.
The event record store can be erased when viewing the “events stored” instrument screen and
pressing the TEST/RESET button.
1.3.6 General
Multiple Settings Groups
Argus relays provide eight alternative settings groups, making it possible to edit one group while the
protection algorithms operate using another ‘active’ group. The Argus can then be switched from one
group of settings to another to suit alterations in the power system configuration. A change of group
can be achieved either locally at the fascia, remotely via a communications interface command or by
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Section 1: Relay Description
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P20006 issue 2004/05
energisation of a status input. On models with a voltage element, this can also be used to change
settings group.
For setting group change by status input, the ‘Settings Group Select’ setting is used to configure any
one (or more) of the status inputs to select a settings group. The selected group is then made active if
the status input is energised and remains active for as long as the input remains energised.
If multiple status inputs are energised, the lower (or lowest) number status input takes precedence.
For instance, if status input 1 activates settings group 5 and status input 3 activates settings group 2,
and both status inputs are energised, the Argus would operate in settings group 5.
Self Monitoring
The Argus incorporates a number of self-monitoring features listed below, each of which initiates a
reset sequence that can be used to generate an alarm output. In addition, the Protection Healthy LED
gives visual indication.
• Power supply watchdog
• Microprocessor watchdog
• Program memory test using CRC
Any failure is detected with sufficient time warning so that the microprocessor can be shut down in a
safe and controlled manner.
Password Feature
The programmable password feature enables the user to enter a 4 character alpha-numeric code. As
soon as the user attempts to change a setting the password is requested before any setting alterations
are allowed. Once the password has been validated, the user is said to be “logged on” and any further
changes can be made without re-entering the password. If no more changes are made within I hour
then the user will automatically be “logged out”, re-enabling the password feature. Note that the
password validation screen also displays a numerical code. If the password is lost or forgotten,
authorised personnel can communicate this code to VA TECH Reyrolle ACP Ltd. and the password
can be retrieved. The Argus is supplied with the password set to “NONE” which means the feature is
de-activated.
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Section 2: Operation Guide
Section 2: Operation Guide
2.1
USER INTERFACE OPERATION
The basic settings/displays flow diagram is shown in Figure 2-1 This diagram shows the main modes
of display: Linesman Mode (Argus 4 and 6 only), Settings Mode, Instrument Mode and Fault Data
Mode.
When the Argus leaves the factory all data storage areas are cleared and the settings set to default
values as specified in the Argus Overcurrent Technical Reference document. When the Argus is first
powered-on the screen will display the default relay identifier and ‘Factory Settings’. The identifier can
be changed to a user definable identifier or code if the user prefers. Once any setting changes have
been made the ‘Factory Settings’ text will be replaced by ‘Relay Settings’.
On each subsequent power-on the screen that was showing before the last power-off will be
displayed.
The menu system is navigated as shown in Figure 2-1. Note, however that some sub-menus and
screens are relevant to certain models only and will not always appear. This is indicated in the
diagram. The exact list of settings and instruments available in each model is given in the appropriate
Diagrams and Parameters document.
The five keys have the following functions:
Up (5), down (6) and right (4) keys – used to navigate the menu system
ENTER key – when a setting is being displayed this key will enter edit mode for the setting (see
section 2.1.1). When in edit mode pressing ENTER will accept the setting change. When an
instrument is being displayed pressing ENTER will toggle the instruments default screen status on and
off (see section 2.1.2.1).
CANCEL key – when a setting is being edited this key will cancel the edit without changing the setting.
At all other positions CANCEL will move back up the menu system (in the direction of the main menu).
TEST/RESET key – when the main menu is visible TEST/RESET will briefly light all LEDs in order to
test their operation. After a trip occurs and the summary fault record is being displayed TEST/RESET
will reset the trip LED and any hand reset contacts before displaying the scrolling fault display. When
an instrument which records a count is being displayed (e.g. number of CB operations) pressing
TEST/RESET will allow the count to be reset (see section 2.1.2.2). At all other times the right (4)
function of this key is available for menu navigation.
2.1.1 Settings
While a setting (or other editable value – e.g. in Linesman mode) is being displayed on the screen the
ENTER key can be pressed to edit the setting value. If the Argus is password protected the user will
be asked to enter the password as described below. If an incorrect password is entered editing will not
be permitted.
While a setting is being edited flashing characters indicate the edit field. Pressing the up (5) and
down (6) keys will increment and decrement the value of the field within the valid limits of the setting.
If the up and down keys are held on the rate of scrolling will increase.
On a multi-field setting (e.g. text settings or CT ratios) pressing the right (4) key will move the edit
point to the next field.
Once editing is complete pressing ENTER stores the new setting value into the non-volatile memory.
The setting change is effective immediately unless any protection element is operating (above
setting) in which case the change becomes effective when no elements are operating.
If during editing the CANCEL key is pressed the edit mode is exited, the setting change is discarded
and the original value is redisplayed.
Page 14 of 40
list of settings
with multiple
groups
list of items on
multiple screens
Screen display
as seen on relay
Key
Argus 4 and 6
models only
65
6
Scada Control
Hot Line
Working
Trip & Lockout
Trip & Reclose
Close & Reclaim
ARC
ALL Inst.
LowSet
∆Trip Counter
Reset
SEF
5
6
65
CANCEL
ENTER
4
4
Argus 4 and 6
Linesman Mode
5
TEST/
RESET
65
6
CB Maintenance
menu. ð to view
65
Data Storage
menu. ð to view
65
Comms Interface
menu. ð to view
65
Status Config.
menu. ð to view
65
O/P Relay Config
menu. ð to view
65
Auto Reclose
menu. ð to view
65
Voltage
menu. ð to view
65
Directional
menu. ð to view
65
Protection
menu. ð to view
65
System Config.
menu. ð to view
4
4
4
4
4
4
4
4
4
4
4
IEC 60870-5103 comm
settings
status input
mappings
output relay
mappings
auto-reclose
settings
voltage element
settings
directional
elements
settings
overcurrent
protection
settings
system
configuration
settings
CB maintenance
settings
waveform, event
and fault
storage settings
** LED Test **
Relay type
Software identity
Settings Mode
Argus 1 and 2
Relay Identifier
4
+
CANCEL
CANCEL
ENTER
Argus 4 and 6
models only
Certain Argus
2 models only
Argus 2 and 6
models only
5
6
5
4
TEST/
RESET
ENTER
5
6
Trip
dd/mm/yy hh/
mm
Trip X X X
toggle default
screen
reset count meter
2. Instruments marked * appear in selected models only. Refer
to appropriate Settings and Parameters document for definitive
list.
1. For definitive lists of settings and instruments in each model,
refer to the appropriate 'Diagrams and Parameters' document
for that model.
Notes.
6
Primary currents
Sec'y. currents
* Primary phase voltages
* Primary phase-phase
voltages
* Sec'y. phase voltages
* Sec'y. phase-phase voltages
* Apparent power & power
factor
* Real and reactive power
* Whr (Fwd/Rev)
* VArHr (Fwd/Rev)
*Max demand I, W, VAr
* Directional status
Relay Status
Status Inputs
Trip Circuit Condition
* Delta trip counter
Trip Counters
* Freq. Op Counter
Sum I2
Num. of Waveforms
Num. of Events
Date and Time
Starters
General alarms
* ARC Status & Alarms
* ARC Inhibits
* CB Status
Power On Count
65
Instrument
Mode
65
6
Fault 1
Fault 2
Fault 3
Fault 4
Fault 5
5
6
4
P300009 Menu Structure Argus Overcurrent
TEST/
RESET
5
Fault Data
Mode
Section 2: Operation Guide
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Figure 2-1 Menu Structure for Argus 1, 2, 4 and 6 Relays
Page 15 of 40
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Section 2: Operation Guide
Eight settings groups are stored within the Argus. Only one of these is active at a time and only one
can be displayed at a time. Some settings have a common value across all groups. If a setting has
different values across the groups this is indicated by Gn in the top left of the display while the setting
is being displayed, where n is the number of the current display group.
The active group can be switched from one to another using the ‘Active Group’ setting in the ‘System
Config.’ sub-menu. Similarly, the current display group is controlled by the ‘Display Group’ setting.
2.1.1.1 Password Entry
If, at any point, a password is required the screen will display ‘Enter password’ and a four-character
field. The password is entered, as described for settings changes above. On pressing ENTER, if the
password is correct, the user is “logged in” and editing will be allowed. The user will remain logged in
for an hour after the last key press after which he/she will be “logged out” and the password must be
re-entered for further changes.
To change the password the ‘Change Password’ setting in the ‘System Config.’ sub-menu should be
edited. If an attempt is made to change the password the user will first be logged out and will have to
log in again (to prove authenticity). After changing the setting the user will be asked to confirm the
password by re-entering it.
If no password has been set, the text ‘NOT ACTIVE’ will be shown as the setting value of the ‘Change
Password’ setting. If a password has been set the setting value will be shown as either a 7 or 8 digit
number. If the password is forgotten, this 7 or 8 digit number can be communicated to VA TECH
Reyrolle ACP Ltd., or their agent, by an authorised person and the password can be decoded.
If a password has been set it can be removed by entering the text ‘NONE’ into the ‘Change Password’
setting.
2.1.1.2 Yes/No Confirmation
Some settings require further confirmation of change using Yes/No confirmation. When the
confirmation screen appears the edit field will be flashing ‘N’ (for ‘No’). Use the up (5) or down (6)
key to change the field to ‘Y’ (for ‘Yes’) and then press ENTER to confirm the change. Pressing
CANCEL, or pressing ENTER without changing the field to ‘Y’ will abort the change.
2.1.2 Instruments
While an instrument is being displayed it will be updated regularly.
2.1.2.1 Default Instruments
When an instrument is being displayed, pressing ENTER toggles its “default instrument” status on and
off.
A default instrument is one that is displayed automatically by the Argus after no keys have been
pressed for a period. A number of default instruments can be set in which case they will be cycled in
turn for 5 seconds each. The period before the default instruments are displayed is controlled by the
‘Default Screen Time’ setting in the ‘System Config.’ menu.
If an instrument is set as a default instrument this is indicated by a ‘o‘ in the top right corner of the
display.
While a default instrument is being displayed, pressing any key (except TEST/RESET) will revert the
display to that being displayed before the default instrument was activated.
2.1.2.2 Resetting Counts
2
Some instruments show count or summation values, e.g. Trip Count, Sum of I . These can be reset
using settings within the relevant sub-menus. Pressing the TEST/RESET key while the appropriate
instrument is displayed will also reset them. You will be asked to confirm this using a Yes/No
confirmation (as described in section 2.1.1.2 but TEST/RESET can also be used to confirm, rather
than pressing ENTER).
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Section 2: Operation Guide
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
2.1.3 Fault Displays
As shown in Figure 2-1, the occurrence of a fault (as defined by the ‘Fault Trigger’ setting) will cause
the red trip LED to be lit and the trip display will be shown. This gives the date (DD/MM) and time
(HH:MM:SS) of fault and the poles that were active at the time of trip.
Example: 12/05 17:25:51
TRIP A E
Pressing the TEST/RESET key will extinguish the trip LED, reset latched output relays and change the
display to the scrolling fault display, giving a more detailed fault record. On the top line of this display
the fault number (1 to 5) is displayed. The bottom line gives the date and time of trip (DD/MM/YY
HH:MM:SS.ssss), the active group and then for each pole of the Argus relay:
•
•
•
•
•
Current at time of trip
The voltage at time of trip (certain Argus 2 models only)
Forward or reverse direction of current flow (directional relays only)
Elements which were active (above setting) at time of trip
Elements that operated for the trip to occur are indicated by <…> around the element
Example: Fault 1
<<<fault data>>>
where ‘fault data’ is: 25/02/01 17:25:51.2525 G1 PHASE A LS IDMTL <HS1> HS2 IA = 12.32xIn …
This information scrolls along the bottom line of the display.
This record can be viewed again later in the Fault Data displays. The five most recent faults are
stored, with the oldest being lost when a new fault occurs. The five faults are numbered from 1 to 5
with fault 1 being the most recent.
2.1.4 Software Information
The identity of the software present in the Argus can be displayed as follows:
Ensure that the ‘Relay Identifier’ is displayed on the LCD (if necessary press the CANCEL key until it
shows). Press and hold the CANCEL key, then press the TEST/RESET key, then release the
CANCEL key and TEST/RESET key together.
The software article numbers and revisions will now be displayed on the LCD. Press any key to return
to the ‘Relay Identifier’.
2.1.5 Operation with Front Cover Fitted
When the clear plastic cover is fitted only the down (6) and right (4)/TEST/RESET keys are
accessible using through-cover buttons. These buttons are recessed to prevent inadvertent operation
of the keys.
Referring to Figure 2-1, it can be seen that all areas of the menu can be accessed using the 6 and 4
keys but that settings cannot be changed since the ENTER key is not accessible. Counter instruments
can be reset while viewing them by pressing RESET, then using 6and RESET to confirm.
2.2
OPERATION USING REYDISP EVOLUTION (IEC 60870-5-103 COMMS ONLY)
ReyDisp Evolution provides the means to achieve the following:
•
•
•
•
•
•
•
•
Get (upload) a settings file from the Argus
Download a settings file to the Argus
Change individual settings
Get the active group number
Set the active group number
Monitor for events and display them spontaneously
Upload the complete events file from the Argus
Clear the events file
Page 17 of 40
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
•
•
•
•
•
•
•
Section 2: Operation Guide
Upload waveform records from the Argus
Trigger waveform recording
Clear waveform records
Continuously display instruments i.e. meters, counters, relay status, ARC status etc.
Get system data (hardware and software details) from the relay
Reset all flags
Send commands to the relay. Allows user to access the command set of the Argus which includes
synchronise the clock, change settings group, trip and close circuit breakers, enable and disable
auto-reclose functions and protection elements
The ReyDisp Evolution software can be used with all Argus and Modular II protection relays supplied
by VA TECH Reyrolle ACP Ltd.
Use of the ReyDisp Evolution software is menu driven, with the settings, events, waveforms,
instruments and commands all being available in separate menus.
The settings are displayed in the same order as on the relay fascia.
Page 18 of 40
Section 3: Installation
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Section 3: Installation
3.1
UNPACKING, STORAGE AND HANDLING
On receipt, remove the Argus from the container in which it was received and inspect it for obvious
damage. It is recommended that the Argus relay not be removed from the case. To prevent the
possible ingress of dirt, the sealed polythene bag should not be opened until the Argus is to be used.
If damage has been sustained, a claim should immediately be made against the carrier, also inform
VA TECH Reyrolle ACP Ltd. or their local agent.
When not required for immediate use, the Argus should be returned to its original carton and stored in
a clean, dry place.
The Argus relay contains static sensitive devices. These devices are susceptible to damage due to
static discharge and for this reason it is essential that the correct handling procedure is followed.
The Argus relay’s electronic circuits are protected from damage by static discharge when it is housed
in its case. When the relay has been withdrawn from the case static handling procedures should be
observed as follows: • Before removing the Argus from its case the operator must first physically touch the case to ensure
that he/she is at the same potential.
• The Argus relay must not be handled by any of the terminals on the rear of the chassis
• Argus relays must be packed for transport in an anti-static container
• Ensure that anyone else handling the Argus is at the same potential
As there are no user serviceable parts in the Argus relay, then there should be no requirement to
remove any modules from the chassis. If any modules have been removed or tampered with, then the
guarantee will be invalidated. VA TECH Reyrolle ACP Ltd. reserves the right to charge for any
subsequent repairs.
3.2
RECOMMENDED MOUNTING POSITION
The Argus uses a liquid crystal display (LCD) which is used in programming and for operation. The
LCD has a viewing angle of ±70° and is back-lit. However, the best viewing position is at eye level
and this is particularly important when using the built-in instrumentation features.
The LCD contrast will normally be correct for all positions and environments, however it can be
adjusted if required using the adjustment screw mounted through the fascia to the upper right of the
LCD.
The Argus relay should be mounted on the circuit breaker or panel to allow the operator the best
access to the functions.
3.3
RELAY DIMENSIONS
The following drawings are available which give panel cut out and mounting details. Refer to the
appropriate Diagrams and Parameters part of the documentation for a cross-reference of case sizes
and models.
• 2995X10004 Overall Dimensions and Panel Drilling for Epsilon E4 Case
• 2995X10006 Overall Dimensions and Panel Drilling for Epsilon E6 Case
• 2995X10008 Overall Dimensions and Panel Drilling for Epsilon E8 Case
3.4
WIRING
The Argus should be wired according to the scheme requirements, with reference to the appropriate
wiring diagram. Refer to the appropriate Diagrams and Parameters part of the documentation for a
cross-reference of wiring diagrams and models.
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Section 3: Installation
3.4.1 Communications
Fibre-optic STTM (BFOC/2.5) bayonet connectors – 2 per Argus. Glass fibre is recommended for all but
the shortest distances.
When installing fibre ensure that the fibre’s bend radii comply with the recommended minimum for the
fibre used – typically 50mm is acceptable for single fibres.
An option for RS485 electrical interface is available. A maximum of 256 devices can be connected
using 120 ohm screened twisted pair wire ie Belden 3105A, or similar, terminated with a suitable flat
blade or pin connector. The last device in the circuit must be terminated with the termination link as
show in section P20008-Diagrams & Parameters, this connects the internal 120 ohm terminating
resistor.
3.5
FIXINGS
3.5.1 Crimps
Davico ring tongue with 90 deg bend
Table 3-1
Wire crimp sizes
Wire Size
Davico
0.25 to 1.6 mm
2
DVR1-4 (90deg)
1.0
2
DVR2-4 (90deg)
to 2.6 mm
3.5.2 Panel Fixing Screws
Kit ZA0005-062 comprising of:
• Screw Pan Head M4x10mm (Black) ZB5364-101 2off
• Nut M4 2103F11040 2off
• Lock washer 2104F70040 2off
Two kits are required for the R4, R6 and R8 case sizes.
3.6
ANCILLARY EQUIPMENT
The Argus can be interrogated locally or remotely by making connection to the fibre optic terminals on
the rear of the case. For local interrogation a portable PC with a fibre to RS232 modem is required.
The PC must be capable of running Microsoft Windows 98 or greater, and it must have a standard
RS232 port, a USB- RS232 adaptor, or a suitable PCMC1A RS232 adaptor can be used in order to
drive the modem. The Reydisp communications package can then be used to interrogate the relay
using the IEC 60870-5-103 protocol. For remote communications more specialised equipment is
required see Section 4: Communications Interface in the Technical Reference section of this manual.
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Section 4: Commissioning
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Section 4: Commissioning
4.1
BEFORE TESTING
4.1.1 Test Equipment
500V Insulation resistance test set.
1. Secondary injection current source rated 10A or greater
2. Time interval meter
3. Primary injection equipment
4. A d.c. supply with nominal voltage within the working range of the Argus d.c. auxiliary supply rating
5. A d.c. supply with nominal voltage within the working range of the Argus d.c. status input rating
Additionally for Argus 2 and 6 relays, the following equipment is required
Variable voltage source
6. Phase shifting transformer
7. Phase Sequence Indicator
Alternatively, items 1, 2, 4, 5, 6 and 7 can be replaced by a computer programmable V & I source
universal test set
Additional equipment for general tests and for testing the communications channel:Portable PC with an RS232 to fibre-optic converter and suitable interface cable or via RS485 input.
Printer to operate from the above PC (Optional).
Use of PC to Facilitate Testing
The functions of ReyDisp Evolution (see section 2.2) can be used during the commissioning tests to
assist with test procedures or to provide documentation recording the test and test parameters. One
method is to clear both the waveform and event records before each test is started, then, after the
tests, upload from the Argus the settings, events and waveform files generated as a result of
application of the tests. These can then be saved off to retain a comprehensive record of all tests. This
method is particularly useful when auto-reclose sequences are being checked.
When testing is completed then the event and waveform records should be cleared and the settings
file checked to ensure that the required in-service settings are being applied.
4.1.2 Precautions
Before electrical testing commences the equipment should be isolated from the current transformers
and the CTs should be short-circuited in line with the local site procedures. The tripping and alarm
circuits should also be isolated where practical. The provision and use of secondary injection test
sockets on the panel simplifies the test procedure.
Ensure that the correct d.c. auxiliary supply voltage and polarity is applied. See the relevant scheme
diagrams for the relay connections.
Check that the nominal secondary current rating of the current transformers has been correctly set on
the P/F Rating, E/F Rating and SEF Rating settings in the System Config. menu of the relay.
4.1.3 Applying Settings
The settings for the particular application should be applied before any secondary testing occurs. If
they are not available then the Argus has default settings that can be used for pre-commissioning
tests. Refer to the appropriate Diagrams and Parameters document for the default settings. Note that
the tripping and alarm contacts must be programmed correctly before any scheme tests are carried
out.
Argus relays feature eight alternative settings groups. In applications where more than one settings
group is to be used then it may be necessary to test the Argus in more than one configuration.
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Section 4: Commissioning
Note. One group may be used as a ‘Test’ group to hold test-only settings that can be used for regular
maintenance testing, eliminating the need for the Test Engineer to interfere with the actual in-service
settings in the normally active group. This Test group may also be used for functional testing where it
is necessary to disable or change settings to facilitate testing.
When using settings groups it is important to remember that the Argus need not necessarily be
operating according to the settings that are currently being displayed. There is an ‘Active Settings
Group’ on which the Argus operates and an ‘Edit/View Group’ which is visible on the display and
which can be altered. This allows the settings in one group to be altered while the protection continues
to operate on a different unaffected group. The ‘Active Settings Group’ and the ‘Edit/View Group’ are
selected in the ‘System Configuration Menu’.
Elsewhere in the settings menu system, those settings that can be altered for different groups are
indicated by the symbols G1, G2 etc. in the top left of the display. All other settings are common to all
groups.
4.2
TESTS
4.2.1 Inspection
Ensure that all connections are tight and correct to the wiring diagram and the scheme diagram.
Record any deviations. Check that the Argus is correctly programmed and that it is fully inserted into
the case. Refer to Section 2: Operation Guide for information on programming the Argus.
4.2.2 Insulation Tests
Connect together all of the C.T. terminals and measure the insulation resistance between these
terminals and all other terminals connected together and to earth.
Connect together the terminals of the DC auxiliary supply circuit and measure the insulation resistance
between these terminals and all other terminals connected together and to earth.
Connect together the terminals of the DC status input circuits and measure the insulation resistance
between these terminals and all other terminals connected together and to earth.
Connect together the terminals of the output relay circuits and measure the insulation resistance
between these terminals and all other terminals connected together and to earth.
Argus 2 and Argus 6 only:
Connect together all of the V.T. terminals and measure the insulation resistance between these
terminals and all other terminals connected together and to earth.
Satisfactory values for the various readings depend upon the amount of wiring concerned. Where
considerable multi-core wiring is involved a reading of 2.5 to 3.0 megohms can be considered
satisfactory. For short lengths of wiring higher values can be expected. A value of 1.0 megohm should
not be considered satisfactory and should be investigated.
Remove temporary connections.
4.2.3 Secondary Injection Tests
Select the required configuration and settings for the application.
Note that the Argus may be connected as either a 1A or a 5A rated device. The user should check this
before commencing secondary testing.
For all high current tests it must be ensured that the test equipment has the required rating and
stability and that the Argus is not stressed beyond its thermal limit.
4.2.3.1 IDMTL/DTL Characteristics
Argus 2 and Argus 6 only: If the Argus is to be employed for directional protection then all ‘Directional
Control’ settings should be set to ‘OFF’ during the following tests.
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Pick-up and Drop-off
This test checks the accuracy of the current setting for the main overcurrent characteristic. Note that
SEF/REF poles are considered later.
Inject single phase current into one of the current inputs. Slowly increase the current until the I>Is LED
(yellow) operates and record the pick-up current in Table 4-4. Reduce the current until the LED goes
out and record this as the Drop-off level. Repeat this test for each pole.
Check that all measured Pick-up current levels are within 105% ± 4% of the applied setting. Check
that the Drop-off levels are ≥95% of the measured Pick-up value.
Note. Depending upon the applied settings a TRIP could occur if the current is on for longer than the
operating time. This may be undesirable while measuring Pick-up and Drop-off levels. The ‘Fault
Trigger’ setting (in the data storage menu) can be used to disable tripping indication temporarily during
this test, also the Low and High Set elements may need to be temporarily turned ‘OFF’ in order to
prevent unwanted instantaneous operations.
Timing
This test checks the accuracy of the main time delay characteristic (IDMTL/DTL). Select the current
setting, characteristic type and time multiplier setting as required. Then inject current at multiples of
the setting.
The correct output contact must be programmed for the phase fault and earth fault elements. A time
interval meter must be connected to the correct terminals. The timer should be started by the source
and stopped by the trip contacts. Each pole should be tested. A secondary injection timing test circuit
is illustrated in Figure 4-3.
Table 4-1 shows theoretical values for each characteristic curve with a time multiplier of 1.0. Record
the actual results in Table 4-5 and check that the measured times lie within ±5% or ±30ms of nominal
time.
Table 4-1
IDMTL Timing Characteristic (Time in Seconds)
Curve
2 xIs
5 xIs
NI
10.03
4.28
VI
13.50
3.38
EI
26.67
3.33
LTI
120.00
30.00
DTL
-
-
4.2.3.2 Lowset and Highsets
Phase Fault poles can have up to two highsets and one lowset, also the Earth fault can have up to two
highsets and one lowset. The following tests should be applied to each element in the scheme.
The low/high set under test should be programmed to operate an output contact, which can then be
monitored to detect operation of the element.
Argus 2 and Argus 6 only: If the Argus is to be employed for directional protection then all ‘Directional
Control’ settings should be set to ‘OFF’ during the following tests.
Pick-up and Drop-off
Programme the current setting for the low/high set characteristic to the required level and set its time
delay to 0.00 sec. Inject a level of current below the setting and increase the current until the output
contact operates. Record the Pick-up level for each pole in Table 4-6, Table 4-7 or Table 4-8 and
confirm that in each case it occurs within ±5% of the applied setting.
For high levels of current the thermal limit of the Argus must not be exceeded. Refer to the
performance specification for the Argus, which defines the thermal limits. Manual testing runs the risk
of exceeding the thermal limit. When manually testing a high setting it is not considered necessary to
establish the exact pick-up level and the following procedure is recommended to ensure that the
thermal limit is not exceeded:-
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Section 4: Commissioning
1. Switch on the test supply and quickly raise the current to just below 95% of the set value and then
switch off the test supply immediately. Switch back on and then off in quick succession to prove
non-operation. Do this five times with a delay between each test of about 10 seconds.
Test similarly at 105% of setting to prove operation. Switch off, reset the trip indication and then
switch on and off five times quickly to prove operation for each injection.
If a computer test set is being used then the pick-up level and timing can be measured provided that
the automatic test is set up to apply pulses of current to avoid exceeding the thermal limit.
Timing
The operating time should be tested with a current of 5 times setting applied and with the required
time delay set. Output contacts for the Low/Highsets must be programmed and a time interval meter
connected to the correct terminals.
The timer should be started by the source and stopped by the Low/Highset contacts. Each phase
should be tested.
Record the results in Table 4-9, Table 4-10 and Table 4-11 and confirm that the measured delays are
within ±5% of the set values.
4.2.3.3 SEF/REF
Pick-up and Drop-off
For Argus relays with the SEF/REF element fitted then the current setting should be checked for this
pole. This can be achieved in the same manner as the IDMTL/DTL Characteristic Pick-up/Drop-off
tests.
Record the results in Table 4-12. Confirm that the measured Pick-up level is within ±5% of the set
value and that Drop-off occurs at ≥95% of the measured Pick-up value.
Timing
The timers used in the SEF/REF mode are operated sequentially. Separate contacts must be
configured for timer 1 and timer 2 in order that operation of each timer is checked.
Set the operating time on timer 1 to the required time and connect a time interval meter to the contact
configured for timer 1. Inject a current at least three times the setting and record the time.
Set the operating time on timer 2 to the required time and connect a time interval meter to the contact
configured for timer 2. Inject a current at least three times the setting and record the time. The
operating time is the addition of time 1 and time 2. Subtract time 1 from time 1+2 to get the operating
time for timer 2.
Note that the SEF/REF pole has an additional available timer that is referred to as the lowset delay,
this should be tested if required by the application.
Record the results in Table 4-13 and confirm that the measured delays are within ±5% of the set
values.
4.2.3.4 Circuit Breaker Fail
To measure the pick up level, temporarily set a status input to operate the external CBF function then
invert the input, this enables the element. The delay time should be set to zero. Inject current and
record the pick up level in Table 4-14.
The 2-stage circuit breaker failure feature should be tested if required by the application. If only one of
the stages is to be used then only CBF delay 1 need be tested.
In order to test both stages of the CBF feature then the two CBF delays should be programmed to
operate separate output contacts other than the main trip output. They should also be programmed
with their appropriate delays and current level setting.
CBF delay 1 is initiated by the main trip output and current above the setting, after timing out it
generates a trip output of its own and also initiates the CBF delay 2 which subsequently generates a
final trip output.
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Connect the main trip output to start a time interval meter. Connect the output from CBF delay 1 to
stop both the timer and the current source. Inject current of 2x setting into any pole and record the first
CBF time delay in Table 4-15.
Connect the CBF delay 1 output to start the time interval meter. Connect the output from CBF delay 2
to stop both the timer and the current source. Inject current of 2x setting into any pole and record the
second CBF time delay.
Check that the measured delays are within ±5% of the set values.
4.2.3.5 Directional Tests
This applies to Argus 2 and Argus 6 relays only
The following tests deal specifically with directional functionality. Note that there are a number of
variants of directional Argus relays with various combinations of directional and non-directional poles.
These tests should only be applied to those poles that are directionalised.
Note also that the directional response for each characteristic (eg IDMTL, highset, etc) is
programmable and may be selected as either Non-directional, Forward, Reverse or TRI-state
depending on the requirements of the scheme. For the following tests the ‘Directional Control’ settings
should be set to the required settings.
Directional Polarity Check
This test checks for correct polarity of the directional circuits.
In the Instruments menu display; indication is provided on the output states of the directional
elements, i.e. whether they see forward current, reverse current or neither for each pole. This display
is an aid to commissioning testing. If the Argus is allowed to trip during testing then this display will be
interrupted and replaced by the fault data display screen. If this normal operation interferes with
testing then temporarily change the ‘Fault Trigger’ setting so that no fault indication will be given if the
Argus trips.
1. Check the direction of each pole in turn by connecting to the appropriate terminals. Table 4-2
shows the polarising quantity for each pole. Figure 4-4 shows a directional test circuit for one type
of Argus 2.
Table 4-2
Connections for Directional Polarity
Overcurrent pole
2.
Polarising voltage
Phase A
VBC
Phase B
VCA
Phase C
VAB
Earth-fault
3V0
Inject rated current and apply rated voltage at the CA (MTA) phase angle setting. Then, for each
pole, monitor the directional display in the instrument menu and check that indication of forward
current (FWD) is displayed.
3. Repeat all of the above with the current connections reversed. Indication should now be given of
reverse (REV) current flow.
4. To check the direction of the earth fault element on the Argus AG2xx series or the AG2xx-5xx
series when connected Ph-Ph, the 3Vo must then be applied to the residual voltage input.
To check the direction of the earth fault element on the AG2xx-5xx series of relays when
connected Ph-N remove the voltage from the phase under test, keeping the voltage healthy on the
other two phases. Where only single phase equipment is available then reverse voltage must be
applied to the phase under test.
For all of the above tests inject residual current at the MTA into the earth fault input to confirm
correct directional operation.
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Section 4: Commissioning
Boundary of Operation
The purpose of this test is to ensure that the operating angles are correct for the forward and reverse
zones of each pole. Note that if a pole is programmed to operate in one direction only then only the
angles for that operating zone need be checked. Check that the required directional settings have
been correctly applied, including the characteristic angles.
Each directional operate zone has two boundaries of operation, at leading and lagging boundaries of I
with respect to V. To find the boundaries of operation for a particular pole, inject current and volts at
the characteristic angle and check that ‘FWD’ is indicated. Then adjust the phase angle to find the
lagging drop-off boundary (ie I lags V giving a negative angle), the ‘FWD’ indicator disappears at the
drop-off angle. Set the angle back until the ‘FWD’ indicator reappears and adjust the phase angle to
find the leading drop-off angle (positive angle).
To measure pick-up angles set the applied phase angle to be in the reverse zone and reduce the
phase angle until ‘FWD’ is displayed. Do for both leading and lagging boundaries.
The reverse zone boundaries can be found in a similar fashion. Initially inject at the characteristic
angle plus 180° and check that ‘REV’ is indicated. Then find the pick-up and drop-off angles at the
leading and lagging boundaries.
Find the boundaries of the operate zones for each pole and record them in Table 4-16. If the test
equipment is not accurate enough to measure the boundary then an all or nothing test could be
applied to verify the correct direction indication.
VRES
00
a
-300
A
Apply residual voltage either directly to input or
by reducing voltage of faulted phase.
IRES
FWD
B
-600
b
Adjust the phase angle of the residual current
relative to the voltage:
C.A.
+900
-900
Verify directional pick-up and drop off at points
A, B, C and D
c
Alternatively,
REV
+1200
C
Verify correct directional indication at points a,
b, c and d (C.A +800, +1000, -800, -1000)
D
+1500
d
1800
Figure 4-1 Directional Earth Fault Boundary System Angles
VA
00
a
-300
A
With balanced 3-phase system quantities:
IA
FWD
B
Adjust the phase angle of the currents
relative to the voltages:
-600
b
Verify directional pick-up and drop off at
points A, B, C and D
900 - C.A.
+900
-900
Alternatively,
Verify correct directional indication at points
a, b, c and d (C.A +800, +1000, -800, -1000)
c
+1200
C
REV
VC
D
+1500
VB
d
1800
Figure 4-2 Directional Phase Fault Boundary System Angles
Page 26 of 40
Section 4: Commissioning
Table 4-3
Pole
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Limits of Operate Pick-up Relay Angle Boundaries
CA
+45
A,B,C
+30
0
E/F
-15
Direction
Operate (PU)
limits (I wrt V)
Pole
CA
Direction
Operate (PU)
limits (I wrt V)
forward lag
-37.5
-47.5
forward lag
-127.5
-137.5
forward lead
127.5
137.5
forward lead
37.5
47.5
reverse lead
-42.5
-52.5
reverse lead
-132.5
-142.5
reverse lag
132.5
142.5
reverse lag
42.5
52.5
-45
forward lag
-52.5
-62.5
forward lag
-147.5
-157.5
forward lead
112.5
122.5
forward lead
17.5
27.5
reverse lead
-57.5
-67.5
reverse lead
-152.5
-162.5
reverse lag
117.5
127.5
reverse lag
22.5
32.5
forward lag
-82.5
-92.5
forward lag
-172.5
-182.5
forward lead
82.5
92.5
forward lead
-7.5
2.5
reverse lead
-87.5
-97.5
reverse lead
-177.5
-187.5
reverse lag
87.5
97.5
-2.5
7.5
forward lag
-97.5
-107.5
forward lead
67.5
77.5
reverse lead
-102.5
-112.5
72.5
82.5
reverse lag
E/F
-65
-90
reverse lag
General Tests
Voltage sensitivity can be tested if required by injecting current of twice setting at the Characteristic
Angle. The voltage should then be increased from zero until operation of the directional element is
indicated. Operation should occur at less than 2V for phase fault and less than 3.3V for earth fault.
In Argus relays where the two-out-of-three gate function is available and is enabled then this feature
can be checked. Provide a reference voltage VBC and inject current at the characteristic angle into the
A pole and check that no ‘FWD’ operation occurs. Repeat injecting ‘FWD’ operate currents into two
poles simultaneously and the Argus should operate. (This test can be carried out as shown in Figure
4-5. A single phase voltage is applied across two inputs with the third in reverse, and a single phase
current at characteristic angle is injected through all three poles in series,. This applies one pole ‘FWD’
and the other two poles ‘REV’; reverse the current direction to give two poles ‘FWD’ and one pole
‘REV’.
Further tests may be required to check that the directional control settings have been correctly applied
where these are complex. Similarly, if different threshold and delay settings have been applied for
forward and reverse operation then these should be tested. Such additional tests should be specified
according to the particular requirements of the scheme.
4.2.4 Auto Reclose Sequences
These tests apply to Argus 4 and Argus 6 relays only
The Auto Reclose sequences to be applied in-service should be set up and proved for each of the
fault types. As detailed in section 4.1.1 it is suggested that a portable Personal Computer (PC), with
Reydisp Evolution installed, be connected to the Argus via an RS232 to Fibre Optic Modem and Fibre
optic cables. This will greatly facilitate the testing and documentation of the results of the various tests
applied to the Scheme.
Reydisp Evolution can display the complete chronological event record generated by a full multi-shot
Auto Reclose sequence for post test analysis (it is often difficult on site to keep track of protection and
circuit breaker operations during a sequence test). The analysis function provided on the event record
display enables the user to make time difference comparisons between two events. This allows, for
example, accurate measurement of the Reclose delay (Dead time), or the Reclaim delay, without
external equipment. The following information can be easily measured from a single Sequence event
record: • Instantaneous Protection element operate times
Page 27 of 40
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•
•
•
•
•
•
•
•
•
•
Section 4: Commissioning
Circuit Breaker first Trip time
Protection Starter element reset time
Reclose (Dead Time) delay
Circuit Breaker Close time
Delayed Protection operate times
Subsequent Circuit Breaker Trip and Close times
Subsequent Reclose delays
Reclaim delay
Overall sequence time
Status Interlock timing
Also the Waveform Record display for each trip enables time measurements to be made between the
analogue waveforms and the digital (binary) traces of the Status inputs and output relays.
Measurement of the relative timing of the a.c. current waveforms and the Circuit Breaker Status
contacts provides valuable data on the condition of the Circuit Breaker operate times
In addition the Instruments provided by the Argus can be continuously monitored via Reydisp during a
test sequence providing information on the state of the Argus and Circuit Breaker during a test
sequence.
The sequence provided by the Argus in response to a permanent fault should be checked to ensure
that the programmed sequence is as given for a Phase Fault and is also applicable to Earth Fault
and/or Sensitive Earth Fault.
If the scheme requires the Argus to provide Auto Reclose initiated by a Status input then the SA
Sequence should be checked. The response to a Transient fault should be checked.
Record the results of the sequence test in Table 4-17.
4.2.5 Status Inputs
The operation of the status input(s) can be monitored on the ‘Status Input’ display shown in
‘Instruments Mode’. Inject the required supply voltage into each status input and check for correct
operation. Depending on the application, each status input may be programmed to perform a specific
function; each status should be checked to prove that its mapping and functionality is as set.
Where the pick-up and/or drop-off timers associated with a status input are set to user scheme
required delays these delays should be checked either as part of the scheme logic or individually. To
check a status pick-up time delay, temporarily map the status to an output relay that has a normally
open contact. Use an external timer and time the interval between status energisation and closure of
the output contacts.
To measure the drop-off delay, map to an output relay that has a normally closed contact, time the
interval between status de-energisation and closure of the output contacts.
Note. The time measured will include an additional delay, typically less than 20ms, due to the
response time of the status input and the operate time of the output relay.
4.2.6 Output Relays
A minimum of five output relays is provided. Three of these have change over contacts; the remainder
have normally open contacts. Each contact can be tested individually by the trip test feature, which
causes each output relay to be pulsed for the user-programmable minimum dwell time, or they can be
checked during commissioning by testing the feature to which they are assigned.
Note. A quick method of energising an output relay permanently, so that wiring can be checked, is to
temporarily map the output relay being tested to the ‘Protection Healthy’ signal – as this is
permanently energised the mapped relay will be held energised and normally open contacts will be
closed. Remember to deselect the output relays from the ‘Protection Healthy’ signal following the test.
4.2.7 Primary Injection Tests
Primary injection tests are essential to check the ratio and polarity of the transformers as well as the
secondary wiring.
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4.2.7.1 Primary Current Tests
Use the circuit shown in Figure 4-6 to check the current transformer ratio and the C.T. connections for
phase to earth fault current. Inject a current of sufficient magnitude for the Argus relay ammeters to
display. These levels should be compared with the ammeters connected in series with the Argus. The
secondary current is:Is =
Primary current
CT ratio
Use the circuit shown in Figure 4-7 to check the current transformer ratio and the C.T. connections for
phase to phase fault. Record the results in Table 4-18.
4.2.7.2 Primary Directional Tests
This applies to Argus 2 and Argus 6 relays only
General
If the Argus being commissioned is directional then the voltage circuits should be tested to ensure
correct polarity. It is recommended that the Argus be connected to the C.T.’s and V.T.’s with the
polarity as shown in the Diagrams and Parameters section of this manual.
With the polarity connections shown, Argus relays will indicate ‘FORWARD’ direction of current when
power is flowing away from the switchboard busbar and ‘REVERSE’ when flowing into the busbar.
For an outgoing feeder, ‘FORWARD’ is the normal direction of power flow and for an incoming circuit,
‘FORWARD’ is opposite to the normal direction of power. However, normal application of directional
protection is to initiate a trip when fault current flows away from the busbar. (For an incomer, this
requires a parallel supply source).
In both cases therefore, the ‘FORWARD’ direction is the trip direction for normal applications.
Argus 2 and 6 protection elements can be programmed to trip either NON directional, FORWARD,
REVERSE or both (TRI-STATE operation). The FWD and REV (TRI-STATE operation) settings can
be user programmed independently to different sets of setting values.
Phase Directional Element
Using a phase-sequence indicator, first check that the phase sequence of the voltages at the Argus
are correct i.e. A-B-C and see by inspection that the phasing of the connections to the Argus is
correct. Note where it is known that the Phase rotation is in reverse of normal i.e. A-C-B then for
correct phasing of the Phase Fault directional elements only the Current Transformer connections to
each pole should be connected in reverse to those shown in the diagrams. Earth Fault connections
remain unchanged, i.e. as shown.
Check the magnitudes of the voltage transformer voltages.
Pass a three phase load current of 20% or more of the current transformer rating in a known direction.
From the ‘Instruments Display Mode’ check that the Argus correctly indicates either ‘FORWARD’ or
‘REVERSE’, in line with the direction of flow of the primary current.
If the flow of current is such that the Argus should operate, see that in fact it does operate. Note that it
may be necessary to reduce the current setting to a level below the available three phase load current.
Reverse the connections to the current coils and see that the Argus restrains.
If the flow of current is such that the Argus should restrain, see that in fact it does restrain, then
reverse the connections to the current coils and see that it operates.
This test is based on the assumption that the load current has a normal power factor. If, however, the
power factor is very low, leading or lagging, difficulties may be encountered. For example, a very low
leading power factor with power in the forward direction may cause a quadrature connected protection
to restrain.
When the test is complete all connections must be restored to normal. If any settings have been
changed in proving the direction restore them to the original settings and repeat secondary injection
testing as considered necessary.
Page 29 of 40
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Section 4: Commissioning
Earth Directional Element
If the application includes a directional earth element, polarised in the normal fashion from the open
delta winding of a voltage transformer, then the following procedure should be followed:Disconnect the A phase primary input to the voltage transformer. Where primary fuses exist this can
be done by removing the A phase fuse.
Short circuit the A phase main secondary winding. This should be done on the load side of the V.T.
secondary circuit protection (eg fuse or miniature circuit breaker - MCB).
Short circuit and disconnect the current transformer secondary winding connections on the B and C
phases.
Energise the circuit with primary load current (eg ≥20% of In).
If the load power is flowing away from the busbars, then the directional earth fault element should
indicate operation in the forward zone. Check that this is the case. Reverse the connections either to
the current or voltage input and check for operation in the reverse zone.
If the load power is flowing toward the busbars, then the opposite results should be expected.
Finally, de-energise the circuit, restore normal connections, replace the A phase primary fuse and
remove the shorting connections from the A phase V.T. and from the B and C phase C.T. connections.
Figure 4-8 shows the test set-up and the resultant applied voltages and currents for a simulated earth
fault condition using load current.
4.3
PUTTING INTO SERVICE
After tests have been performed satisfactorily the Argus should be put back into service as follows:Remove all test connections.
Where possible the Argus settings should be down loaded to a computer and a printout of the settings
produced. This should then be compared against the required settings. It is important that the correct
settings group is active if more than one group has been programmed.
Reset all event, waveform and fault records and reset all counters.
Replace all secondary circuit fuses and links, or close m.c.b’s.
Page 30 of 40
Section 4: Commissioning
4.4
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
COMMISSIONING RECORD TABLES
These tables should be completed during commissioning as a record of the commissioning tests.
Relay Type
Serial Number
Substation
Feeder Identity
Tester
Date
4.4.1 Secondary Injection Tests
4.4.1.1 Overcurrent
IDMTL/DTL Characteristic
Table 4-4
Pole
Pick-up/Drop-off Results
Pick-up setting
Measured pick-up
Pick-up error
(±4% of 105%)
Measured
drop-off
Drop-off error
(≥95% of pick-up)
Phase A
Phase B
Phase C
E/F
Table 4-5
Pole
Timing Characteristic Results
Characteristic
(NI, VI, EI,
LTI, DTL)
2x Is
Delay
Error
(±5% or
±30 ms)
5x Is
Delay
Error
(±5% or
±30 ms)
Phase A
Phase B
Phase C
E/F
Lowset and Highsets
Table 4-6
Pole
Lowset setting results
Lowset setting
Measured pick-up
Error
(±5% of setting)
Phase A
Phase B
Phase C
E/F
Page 31 of 40
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P20006 issue 2004/05
Table 4-7
Pole
Section 4: Commissioning
Highset 1 setting results
Highset 1
setting
Measured pick-up
Error
(±5% of setting)
Measured pick-up
Error
(±5% of setting)
Measured delay
Error
(±5% or ±30 ms of setting)
Measured delay
Error
(±5% or ±30 ms of setting)
Measured delay
Error
(±5% or ±30 ms of setting)
Phase A
Phase B
Phase C
E/F
Table 4-8
Pole
Highset 2 setting results
Highset 2
setting
Phase A
Phase B
Phase C
E/F
Table 4-9
Pole
Lowset timing results
Lowset delay
setting
Phase A
Phase B
Phase C
E/F
Table 4-10 Highset 1 timing results
Pole
Highset 1
delay setting
Phase A
Phase B
Phase C
E/F
Table 4-11 Highset 2 timing results
Pole
Phase A
Phase B
Phase C
E/F
Page 32 of 40
Highset 2
delay setting
Section 4: Commissioning
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
SEF/REF
Table 4-12 Pick-up/Drop-off Results for SEF/REF
Pole
Pick-up setting
Measured
pick-up
Error
(±5% of setting)
Measured
drop-off
Error
(≥95% of Pick-up)
SEF/REF
Table 4-13 SEF/REF Timing Results
Delay
Delay setting
Measured delay
Error
(±5% or ±30 ms of setting)
Timer 1
Timer 1+2
Timer 2
Lowset
4.4.1.2 Circuit Breaker Fail
Table 4-14 Pick-up/Drop-off Results for CBF Level Detector
Pole
Pick-up setting
Measured
pick-up
Error
(±5% of setting)
Measured
drop-off
Error
(≥95% of Pick-up)
Phase A
Phase B
Phase C
E/F
Table 4-15 Circuit Breaker Fail Timing Results
CBF delay
Delay setting
Measured delay
Error
(±5% or ±30 ms of setting)
Delay 1
Delay 2
Page 33 of 40
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Section 4: Commissioning
4.4.1.3 Directional Tests
These tests apply to Argus 2 and Argus 6 relays only
Table 4-16 Directional Boundaries of Operation
Forward
Pole
CA
(M.T.A.)
Lag (point C)
Reverse
Lead (point A)
Lag (point B)
Lead (point D)
Pick-up Drop-off Pick-up Drop-off Pick-up Drop-off Pick-up Drop-off
A
B
C
E/F
4.4.2 Autoreclose Sequences
These tests apply to Argus 4 and Argus 6 relays only
Table 4-17 Auto-reclose Sequences and settings
Sequence setting
Phase-fault
Earth-fault
SEF
Delayed
Delayed
Delayed
ARC IN/OUT
Line Check trip
Protection Trip 1
Reclose delay 1
Protection Trip 2
Reclose delay 2
Protection Trip 3
Reclose delay 3
Protection Trip 4
Reclose delay 4
Protection Trip 5
Shots to Lockout
Highset 1 Trips to Lockout
Highset 2 Trips to Lockout
Transient fault
Page 34 of 40
Status
Section 4: Commissioning
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
4.4.3 Primary Injection Tests
Table 4-18 Primary Injection Results
Phase
injected
Primary
current
Secondary current
A
B
C
E
A-B
B-C
B-E
Page 35 of 40
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Section 4: Commissioning
phase shifting
transformer
240V a.c.
supply
240V a.c.
supply
A
A
B
C
E/F
82
83
81
79
83
81
82
80
53
49
45
25
54
50
46
26
V
A
B or E/F
time interval meter
C
phase
angle
meter
START
E/F or SEF/REF
auxiliary
+
d.c. supply
-
A
STOP
Figure 4-3 Secondary Injection Test Circuit
Figure 4-4 Directional Test Circuit
A
B
C
phase shifting
transformer
240V a.c.
supply
A
VA
V
E/F or SEF/REF
VB
VC
+
A
-
IA
primary injection
test source
IB
IC
Figure 4-5 Two-out-of-three Directional
Test Circuit
A
B
Figure 4-6 Phase to Earth Primary Injection
Test Circuit
C
A
A
E/F or SEF/REF
+
primary injection
test source
Figure 4-7 Phase to Phase Primary Injection Test Circuit
Page 36 of 40
-
Section 4: Commissioning
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
3 pole directional phase-fault
and directional earth-fault
Ia
End 1
Direction
of load
power flow
M P1
S1
test
S/C
test
S/C
L
P2
Ia
53
54
49
50
45
46
25
26
A phase I/P
B phase I/P
C phase I/P
A phase fuse
removed
79
80
reverse
phase-fault element
Earth-fault I/P
S2
dn
da
forward
Ia
Vref
reverse
forward
Vpol
Vpol = Vbn + Vcn
Ia
test S/C +ve
81
earth-fault element
82
83
-ve
dn
da
A phase fuse
removed
test S/C
79
80
3 pole directional phase-fault
and directional earth-fault
Vpol = Vbn + Vcn
+ve
forward
Vref
81
reverse
82
Ia
phase-fault element
83
-ve
L
P2
S2
test
S/C
M P1
S1
Ia
test
S/C
End 2
Direction
of load
power flow
26
25
46
45
50
49
54
53
reverse
Earth-fault I/P
C phase I/P
Ia
Vpol
forward
earth-fault element
B phase I/P
A phase I/P
Ia
Note that the terminal numbers in this diagram
refer to an Argus AG2-4x5/4x6. The terminals
available on other models may be different,
however, the principle remains the same.
LOAD
Figure 4-8
Resultant Applied Voltages and Currents for a Simulated Earth Fault Condition using
Load Current
Page 37 of 40
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P20006 issue 2004/05
Section 5: Testing and Maintenance
Section 5: Testing and Maintenance
Argus relays are maintenance free, with no user serviceable parts.
5.1
PERIODIC TESTS
During the life of the Argus, it should be checked for operation during the normal maintenance period
for the site on which the product is installed. It is recommended the following checks/tests are carried
out:1. Visual inspection of the metering display
2. Operation of output contacts
3. Secondary injection of each element
5.2
MAINTENANCE
Failure of the Argus will be indicated by the ‘Protection Healthy’ LED being off or flashing. A message
may also be displayed on the LCD. In the event of failure VA TECH Reyrolle ACP Ltd. (or one of its
agents) should be contacted – see defect report sheet in section 5.4.
If removal of the Argus from its case is required, the procedure described in section 3.1 should be
followed.
5.3
TROUBLESHOOTING
Table 5-1
Troubleshooting Guide
Observation
Action
Relay does not power up.
Check that the correct auxiliary DC voltage is applied and that the
polarity is correct.
Relay won’t accept the password.
The Password being entered is wrong. Enter correct password.
If correct password has been forgotten, note down the Numeric
Code which is displayed at the Change Password screen e.g.
Change password
= 1234567
To retrieve the password communicate this code to a VA TECH
representative.
Protection Healthy LED flashes
General failure. Contact a VA TECH representative.
LCD screen flashes continuously.
The LCD has many possible error messages which when
displayed will flash continuously. These indicate various processor
card faults.
General failure. Contact a VA TECH representative.
Backlight is on but no text can be seen.
Adjust the contrast.
Scrolling text messages are unreadable.
Adjust the contrast.
Relay displays one instrument after
another with no user intervention.
Default instruments are enabled. Remove all instruments from the
default list and only add those which are required.
A= 120A B= 123A
C= 108A E= 5A
¨
The ‘¨’ indicates that the instrument is a default instrument. Press
ENTER to deselect it.
(See section 2.1.2.1 Default Instruments).
Page 38 of 40
Section 5: Testing and Maintenance
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
Observation
Action
The LCD is stuck at the ‘General Alarms’
screen and is displaying ‘Trip Circuit
Failure Sx’. (x = 1…5)
The trip circuit failure feature is enabled and is expecting a healthy
status input signal. Energise the correct Status Input, or disable
the trip circuit feature if it is not required.
Cannot communicate with the relay.
Check that all of the communications settings match those used
by ReyDisp Evolution. E.g. Protocol set to IEC 61870-5-103
Check that the Tx and Rx fibre-optic cables are connected
correctly.
( Tx –> Rx and Rx –> Tx ).
Check that all cables, modems and fibre-optic cables work
correctly.
Set the line idle setting to Light On. Examine the Tx port on the
back of the relay, with the fibre removed, and check that it is
glowing red. If it is not then the communications board on the case
may not be aligned correctly with the processor card socket.
Contact a VA TECH representative.
(WARNING : DO NOT LOOK AT THE FIBRE-OPTIC
TRANSMITTER FOR A PROLONGED TIME).
Relays will not communicate in a ring
network.
Check that the Data Echo setting on all relays is set to ON.
Status inputs do not work.
Check that the correct DC voltage is applied and that the polarity
is correct.
Check that all relays are powered up.
Check that all relays have unique addresses.
Check that the status input settings such as the Pick-up and Dropoff timers and the status inversion function are correctly set.
Relay instrument displays show small
currents or voltages even though the
system is dead.
This is normal. The relay is displaying calculation noise. This will
not affect any accuracy claims for the relay.
If the above checklist does not help in correcting the problem please contact your nearest VA TECH
representative or e-mail marketing.acp@vatechuk.com.
Page 39 of 40
Numerical Multi-Function Overcurrent Protection Relay
P20006 issue 2004/05
5.4
Section 5: Testing and Maintenance
DEFECT REPORT
Please copy this sheet and use it to report any defect that may occur.
Customers Name & Address:
Contact Name:
Telephone No:
Fax No:
Supplied by:
Date when installed:
Site:
Circuit:
Software Version:
Article No:
Date Found: During
Commissioning:
During
Maintenance:
Product Name:
Report Required: Y/N
From a System
Fault:
Other, please state:
Serial No:
Copy any message displayed by the relay:
Describe Defect:
Describe any other action taken:
Signature:
Please print name:
For VA Tech Reyrolle ACP Ltd use only:
Date Received: Contact
Reference
Name:
No:
Date
Acknowledged:
To report a problem, please return this completed form to:
VA Tech Reyrolle ACP Ltd
PO Box 8, Hebburn, Tyne & Wear, NE31 1TZ. England.
Telephone: +44 (0)191 401 1111
Fax:
+44 (0)191 401 5575
e-mail:
marketing.acp@vatechuk.com
Page 40 of 40
Date:
Date of Reply:
Date Cleared:
Technical Reference
Argus Overcurrent Protection Relays
P20007 issue 2004/05
DOCUMENTATION SET
This document is part of a set. The full list of documents in the set and the publication numbers under
which they can be ordered are given below. These documents can be provided on request to VA
TECH Reyrolle ACP Ltd. on +44 191 401 1111. They can also be found on our website at
www.reyrolle-protection.com.
Argus Overcurrent Protection Relays
Complete Product Documentation set
P1001
•
•
•
•
•
•
P20006 issue 2004/05
P20007 issue 2004/05
P20008 issue 2004/05
P20009 issue 2004/05
P20010 issue 2002/12
P20011 issue 2002/12
Argus User Manual
Argus Overcurrent Technical Reference
Argus 1 Diagrams and Settings
Argus 2 Diagrams and Settings
Argus 4 Diagrams and Settings
Argus 6 Diagrams and Settings
The copyright and other intellectual property rights in this document, and in any model or article produced from it (and including
any registered or unregistered design rights) are the property of VA TECH Reyrolle ACP Limited. No part of this document shall
be reproduced or modified or stored in another form, in any data retrieval system, without the permission of VA TECH Reyrolle
ACP Limited, nor shall any model or article be reproduced from this document unless VA TECH Reyrolle ACP Limited consent.
While the information and guidance given in this document is believed to be correct, no liability shall be accepted for any loss or
damage caused by any error or omission, whether such error or omission is the result of negligence or any other cause. Any
and all such liability is disclaimed.
P20007 issue 2004/05
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
DOCUMENT RELEASE HISTORY
This document is issue 2004/05. The list of revisions up to and including this issue is:
2004/05
Second issue: Modification of CBF feature, DTL timers extended, CT Failure
added, Auto Reclose sequence settings modified.
Modbus protocol included and additional metering included.
2002/12
Page 2 of 75
First issue
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
CONTENTS
Documentation Set.................................................................................................................................1
Document Release History....................................................................................................................2
Contents ..................................................................................................................................................3
List of Figures.........................................................................................................................................6
List of Tables ..........................................................................................................................................7
Section 1: Performance Specification..................................................................................................8
1.1 General .....................................................................................................................................8
1.1.1
Conformity.............................................................................................................8
1.1.2 Reference.....................................................................................................................8
1.1.3 Dimensions and Weights .............................................................................................8
1.2 Energising Quantities................................................................................................................9
1.2.1 Characteristic Energising Quantities............................................................................9
1.2.2 Auxiliary Energising Quantity .....................................................................................10
1.3 Output Contacts ......................................................................................................................11
1.4 Functional Performance..........................................................................................................11
1.4.1 Phase-fault Overcurrent Protection............................................................................11
1.4.2 Earth-fault Overcurrent Protection .............................................................................13
1.4.3 Sensitive/Restricted Earth-fault Protection ................................................................13
1.4.4 Directional Characteristics .........................................................................................14
1.4.5 Circuit Breaker Fail.....................................................................................................14
1.4.6 Auto-reclose ...............................................................................................................15
1.4.7 Instrumentation ..........................................................................................................15
1.4.8 Communication Interface ...........................................................................................15
1.4.9 Real Time Clock.........................................................................................................16
1.5 Environmental Performance ...................................................................................................16
1.5.1 General.......................................................................................................................16
1.5.2 Immunity.....................................................................................................................16
1.5.3 Emissions ...................................................................................................................17
1.5.4 Mechanical .................................................................................................................17
Section 2: Functional Description ......................................................................................................23
2.1 Introduction .............................................................................................................................23
2.1.1 Models........................................................................................................................24
2.1.2 Document Organisation .............................................................................................24
2.2 Configuration...........................................................................................................................25
2.2.1 Settings Groups .........................................................................................................25
2.2.2 System Frequency .....................................................................................................26
2.2.3 Current and Voltage Inputs ........................................................................................26
2.2.4 Identifier......................................................................................................................27
2.2.5 General Alarms ..........................................................................................................27
2.2.6 Direction Tags ............................................................................................................28
2.2.7 Real Time Clock.........................................................................................................28
2.2.8 Default Instruments ....................................................................................................28
2.2.9 Password....................................................................................................................29
2.3 Phase-fault and Earth-fault Overcurrent .................................................................................29
2.3.1 Delay Characteristic element .....................................................................................29
2.3.2 Instantaneous elements .............................................................................................30
2.3.3 Flashing (Pecking) Fault Protection ...........................................................................32
2.4 Sensitive Earth-fault and Restricted Earth-fault......................................................................32
2.4.1 High Impedance Restricted Earth-fault Scheme........................................................34
2.5 Primary Equipment Fail Protection .........................................................................................34
2.5.1 Circuit Breaker (Trip) Fail Protection..........................................................................34
2.5.2 Close Fail ...................................................................................................................35
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2.5.3 Current Transformer Failure.......................................................................................35
2.5.4 Trip Circuit Supervision - for details see sections 2.10 and 3.8 ................................36
2.6 Cold Load Protection...............................................................................................................36
2.7 Directional Control...................................................................................................................37
2.7.1 Polarisation.................................................................................................................37
2.7.2 Two-out-of-three Gate ................................................................................................38
2.7.3 Voltage Memory .........................................................................................................38
2.8 Voltage Protection...................................................................................................................39
2.9 Auto-Reclose...........................................................................................................................40
2.9.1 Auto Reclose Sequences ...........................................................................................41
2.9.2 Control Inputs .............................................................................................................46
2.9.3 Frequent Operations Counter ....................................................................................47
2.9.4 Hot (Live) Line Working..............................................................................................48
2.10 Trip Circuit Supervision ...........................................................................................................48
2.11 Status inputs and Relay Outputs ............................................................................................48
2.12 Communications .....................................................................................................................50
2.13 Data Storage ...........................................................................................................................50
2.13.1 Event Storage.............................................................................................................51
2.13.2 Fault Data Record ......................................................................................................51
2.13.3 Waveform (Disturbance) Records..............................................................................52
2.13.4 Maximum Demand Function ......................................................................................52
2.14 Maintenance............................................................................................................................53
2.14.1 Circuit Breaker Operations.........................................................................................53
2.14.2 Output Relay Test ......................................................................................................55
2.14.3 Internal Supervision....................................................................................................55
2.15 Linesman Mode.......................................................................................................................56
Section 3: Application Notes...............................................................................................................58
3.1 Selection of Characteristics.....................................................................................................58
3.1.1 Reset Delay................................................................................................................58
3.2 Directional Protection ..............................................................................................................58
3.2.1 Parallel or Ring Feeder Protection .............................................................................59
3.3 Sensitive Earth-fault Protection...............................................................................................60
3.4 Blocking Schemes...................................................................................................................60
Busbar Zone Protection ..........................................................................................................61
3.5 High Impedance Restricted Earth-fault Protection..................................................................62
3.6 Circuit Breaker Fail Protection ................................................................................................64
3.7 Auto-reclose Applications........................................................................................................64
3.7.1 Reclose Time Setting .................................................................................................64
3.7.2 Reclaim Time Setting .................................................................................................65
3.7.3 Shots to Lockout Setting ............................................................................................65
3.7.4 Sequence Auto-reclosing ...........................................................................................65
3.8 Trip Circuit Supervision ...........................................................................................................65
3.9 Output Relays .........................................................................................................................66
3.10 Post-fault Analysis...................................................................................................................66
3.10.1 Events, Fault and Waveform Records .......................................................................66
3.10.2 Fault triggers ..............................................................................................................67
3.10.3 Waveform triggers ......................................................................................................67
3.10.4 ReyDisp (IEC 60870-5-103) .......................................................................................67
Section 4: Communication Interface ..................................................................................................68
4.1 Introduction .............................................................................................................................68
4.1.1 Comms Protocol Setting.............................................................................................68
4.2 IEC 60870-5-103.....................................................................................................................68
4.2.1 Physical Connection...................................................................................................68
4.2.2 Medium.......................................................................................................................68
4.2.3 Recommended cable .................................................................................................69
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4.2.4 Network Topology ......................................................................................................69
4.2.5 Settings ......................................................................................................................69
4.2.6 IEC Class II Measurands ...........................................................................................69
4.2.7 IEC Class II Update period.........................................................................................69
4.2.8 IEC Class II scaling ....................................................................................................69
4.2.9 Baud Rate ..................................................................................................................69
4.2.10 Comms Parity.............................................................................................................69
4.2.11 Relay Address ............................................................................................................70
4.2.12 Line Idle......................................................................................................................70
4.2.13 Data Echo...................................................................................................................70
4.2.14 Modems......................................................................................................................70
4.2.15 Connecting a Modem to the Relay(s) ........................................................................70
4.2.16 Setting the Remote Modem .......................................................................................70
4.2.17 Connecting to the Remote Modem ............................................................................71
4.3 Introduction – Modbus RTU ....................................................................................................72
4.3.1 Medium.......................................................................................................................72
4.3.2 Recommended cable .................................................................................................73
4.3.3 Network Topology ......................................................................................................73
4.3.4 Settings ......................................................................................................................73
4.3.5 Comms Protocol.........................................................................................................73
4.3.6 Baud Rate ..................................................................................................................73
4.3.7 Comms Parity.............................................................................................................73
4.3.8 Relay Address ............................................................................................................73
4.3.9 Line Idle......................................................................................................................73
4.3.10 Data Echo...................................................................................................................73
4.3.11 Glossary .....................................................................................................................75
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LIST OF FIGURES
Figure 1-1
Figure 1-2
Figure 1-3
Figure 1-4
Figure 1-5
Figure 1-6
Figure 1-7
Figure 2-1
Figure 2-2
Figure 2-3
Figure 2-4
Figure 2-5
Figure 2-6
Figure 2-7
Figure 2-8
Figure 2-9
Figure 2-10
Figure 2-11
Figure 2-12
Figure 2-13
Figure 3-1
Figure 3-2
Figure 3-3
Figure 3-4
Figure 3-5
Figure 3-6
Figure 3-7
Figure 3-8
Figure 3-9
Figure 4-1
Figure 4-2
Figure 4-3
Figure 4-4
Figure 4-5
Figure 4-6
Figure 4-7
Figure 4-8
Page 6 of 75
IDMTL Curves (Time Multiplier=1).....................................................................................19
Overcurrent Starter Operate Time to Contact....................................................................20
Instantaneous Highset Operate Time to Contact...............................................................20
Instantaneous Lowset Operate Time to Contact ...............................................................20
Sensitive Earth-fault Frequency Response (Is = 5 mA).....................................................21
Sensitive Earth-fault Operate Time to Contact ..................................................................21
Directional Timing Characteristic .......................................................................................22
Overview of Argus Relay Protection Functions .................................................................23
Functional Diagram – Characteristic Phase-fault Overcurrent Element ............................30
Functional Diagram – Characteristic Earth-fault Overcurrent Element..............................30
Functional Diagram – Instantaneous Phase-fault Overcurrent Elements .........................31
Functional Diagram – Instantaneous Earth-fault Overcurrent Elements ...........................31
Functional Diagram – Sensitive Earth-fault/Restricted Earth-fault Elements ....................33
Functional Diagram – Circuit Breaker Fail .........................................................................35
Functional Diagram – Current Transformer Fail ................................................................36
Functional Diagram – Phase-fault Directional Element .....................................................38
Functional Diagram – Earth-fault Directional Element.......................................................39
Functional Diagram – Undervoltage/Overvoltage Element ...............................................40
Status Input Logic ..............................................................................................................49
Output Relay Logic ............................................................................................................50
Parallel Feeder Protection .................................................................................................59
Blocking scheme giving fast fault clearance ......................................................................60
Busbar Zone Protection with Circuit Breaker Fail using Non-directional
Relays. For use on Single-source Feed Networks ............................................................61
Busbar Zone Protection with Circuit Breaker Fail Employing Bi-Directional
relays. For use on fully Interconnected Networks with Remote Supply
Sources ..............................................................................................................................62
Balanced and Restricted Earth-fault protection of Transformers.......................................63
Restricted Earth-fault Secondary Circuit............................................................................63
Composite Overcurrent and Restricted Earth-fault Protection ..........................................63
Engineering Recommendations S.15 H6 Trip Circuit Supervision scheme ......................65
Engineering Recommendations S.15 H5 Trip Circuit Supervision scheme ......................66
Communication to Argus Relay using Sigma 4 (Local Connection) ..................................71
Communication to Argus Relay using Sigma 4 and Modem .............................................71
Communication to Multiple Argus Relays from Control System and Laptop
with Sigma 3 and Fibre-optic Ring Network.......................................................................72
Communication to Multiple Argus Relays from Control System and Laptop
with Sigma 1 and Fibre-optic Star Network .......................................................................72
Communication to Argus Relay using Sigma 4 (Local Connection) ..................................74
Communication to Multiple Argus Relays from Control System and Laptop
with Sigma 1 and Fibre-optic Star Network .......................................................................74
Communication to Argus Relay using RS485 – RS232 converter (Local
Connection)........................................................................................................................75
Communication to Argus Relay using RS485/RS232 converter (Multidrop
Connection)........................................................................................................................75
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
LIST OF TABLES
Table 2-1
Table 2-2
Table 2-3
Table 2-4
Table 2-5
Table 2-6
Table 2-7
Table 2-8
Table 2-9
Table 2-10
Table 2-11
Table 2-12
Table 2-13
Table 2-14
Table 2-15
Table 2-16
Table 2-17
Table 2-18
Table 2-19
Table 2-20
Table 2-21
Table 2-22
Table 2-23
Table 2-24
Table 2-25
Table 2-26
Table 2-27
Table 2-28
Table 2-29
Table 2-30
Table 2-31
Table 4-1
Table 4-2
Overview of Functional Description Sections ....................................................................24
Settings Group Settings.....................................................................................................25
System Frequency Setting.................................................................................................26
Current and Voltage Input Settings....................................................................................26
Identifier Setting .................................................................................................................27
General Alarm Settings......................................................................................................27
Direction Settings...............................................................................................................28
Real Time Clock Settings ..................................................................................................28
Default Instrument Setting .................................................................................................29
Password Setting ...............................................................................................................29
Phase-fault and Earth-fault Overcurrent Settings..............................................................31
Flashing Fault Setting ........................................................................................................32
Sensitive Earth-fault / Restricted Earth-fault Settings........................................................33
Circuit Breaker Fail Settings ..............................................................................................35
Current Transformer Fail Settings .....................................................................................36
Cold Load Pickup Settings.................................................................................................37
Directional Settings ............................................................................................................39
Voltage Protection Settings ...............................................................................................40
Auto-reclose from Internal Elements - Settings .................................................................44
Auto-reclose from External Trip Settings ...........................................................................45
Auto-reclose Commands Settings .....................................................................................47
Live Line Working Setting ..................................................................................................48
Trip Circuit Supervision Settings........................................................................................48
General Output Relay and Status Input Settings...............................................................50
List of Entries for Fault Data Records................................................................................51
Data Storage Settings........................................................................................................53
Circuit Breaker Maintenance Settings ...............................................................................54
Output Relay Test Setting..................................................................................................55
Internal Supervision Setting...............................................................................................56
Linesman Mode Setting .....................................................................................................56
Linesman Mode Settings and Commands.........................................................................56
Communications Settings ..................................................................................................70
Communications Settings ..................................................................................................74
Page 7 of 75
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Section 1: Performance Specification
Section 1: Performance Specification
1.1
1.1.1
GENERAL
Conformity
This product is
compliant to the following applicable EU directives.
Electromagnetic Compatibility Directive
CE 89/336/EEC
Compliance to the European Commission Directive on EMC is claimed via testing to the Harmonised
Product Standard:- EN 50263:2000
Low voltage Directive
CE 73/23/EEC
Compliance to the European Commission Directive on LVD is claimed via testing to the Harmonised
Product Standard:- EN 60255-5:2000
1.1.2
Reference
These products comply with the requirements of the IEC 60255-xx series and IEC 60068 standards
and specifically with IEC 60255-3 and IEC 60255-12.
1.1.2.1 Accuracy Reference Conditions
This product has been tested under the following conditions, unless specifically stated otherwise.
Parameter
Value
Current settings
100 % In
Time multiplier
1.0
IDMTL
Current input
2 to 30 xIs
DTL
Voltage input
110 V
Auxiliary supply
nominal
Frequency
nominal
Ambient temperature
1.1.3
5 xIs
20 °C
Dimensions and Weights
Dimensions
Parameter
Width
Value
E4 case
103 mm
E6 case
155 mm
E8 case
206 mm
Height
177 mm
Depth behind panel
(including clearance for wiring)
237 mm
Projection (from front of panel)
32 mm
Page 8 of 75
Section 1: Performance Specification
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
See appropriate case outline and panel drilling drawing, as specified in Diagrams and Parameters
document, for complete dimensional specifications.
Weights
Parameter
Net weight
Value
Argus 1, E4 case
3.3 kg
Argus 1, E6 case
4.8 kg
Argus 2, E4 case
3.3 kg
Argus 2, E8 case
6.6 kg
Argus 4, E6 case
4.8 kg
Argus 6, E8 case
6.6 kg
1.2
ENERGISING QUANTITIES
1.2.1
Characteristic Energising Quantities
Parameter
Value
Nominal frequency
50, 60 Hz
1.2.1.1 AC Current
Nominal Current and Measuring Range
Nominal
In
1, 5 A
Measuring Range
Phase and earth
80 x In
SEF/REF
2 x In
Note. 1 A and 5 A nominal inputs are user selectable on each model.
Thermal Withstand
Overload Current
Overload Period
Phase and earth
1A
continuous
SEF/REF
5A
1A
3.0 x In
5A
2.0 x In
10 minutes
3.5 x In
5 minutes
4.0 x In
3 minutes
5.0 x In
2 minutes
6.0 x In
3 seconds
57.7 A
230 A
37.5 A
202 A
2 seconds
70.7 A
282 A
46 A
247 A
1 second
100 A
400 A
65 A
350 A
1 cycle
700 A
2500 A
120 A
600 A
Burden
Value
Attribute
Phase and earth
SEF/REF
1A
5A
1A
5A
AC Burden
≤ 0.05 VA
≤ 0.2 VA
≤ 0.2 VA
≤ 0.4 VA
Impedance
≤ 0.05 Ω
≤ 0.01 Ω
≤ 0.2 Ω
≤ 0.02 Ω
Page 9 of 75
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Section 1: Performance Specification
1.2.1.2 AC Voltage
Argus 2 and Argus 6 relays only
Nominal Voltage and Range
Vn
Nominal
Operating Range
110 V
250 V continuous
Attribute
Value
AC Burden
< 0.1 VA at 110 V
Burden
1.2.2
Auxiliary Energising Quantity
1.2.2.1 Auxiliary Power Supply
Nominal
Operating Range
24, 30, 48 V
VAUX
18 to 60 VDC
88 to 280 VDC
100 to 130 VAC
110, 220 V
Burden
Attribute
DC Burden
Value
Quiescent (typical)
Maximum
3W
10 W
1.2.2.2 Status (Digital) Inputs
Nominal
VST
Operating Range
30, 34 V
18 to 37.5 VDC
48, 54 V
37.5 to 60 VDC
110, 125
87.5 to 137.5 VDC
220, 250
175 to 280 VDC
When relays with 48/54V status inputs are supplied for 110/125 V or 220/250 V working, external
dropper resistors will be supplied listed in the table below. This will enable the status input
performance specified below for the 48/54V status inputs to be achieved on 110/125 V or 220/250 V.
Nominal Operating Voltage
Resistor Value; Rating
110, 125 V
2K7 ± 5 %; 2.5 W
220, 250 V
8K2 ± 5 %; 6.0 W
Performance
Attribute
Minimum DC current for
operation
Value
VST = 30 – 54 V
VST = 110 – 250 V
Reset/Operate voltage ratio
Typical response time
Typical response time when programmed to
energise an output relay contact
Recommended Minimum pulse duration
10 mA
< 5 mA
≥ 90 %
5 ms (10ms for ARGUS 2 type II )
< 15 ms
40 ms with setting of 20ms PU delay for a.c. rejection
Each status input has associated timers which can be programmed to give time delayed pick-up and
time delayed drop-off. These timers have default settings of 20ms, thus providing rejection and
immunity to an AC input signal.
Page 10 of 75
Section 1: Performance Specification
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Status inputs will not respond to the following:• 250V RMS 50/60Hz applied for two seconds through a 0.1µF capacitor.
• Discharge of a 10µF capacitor charged to maximum DC auxiliary supply voltage.
The status inputs with nominal voltage of 30 V to 54 V meet the requirements of ESI 48-4 ESI 1.
Low Burden Status Inputs
Optionally, low burden status inputs are available directly rated for 110/125Vd.c. or 220/250Vd.c.
without dropper resistors. These inputs do not meet the ESI 48-4 ESI 1 requirements. Where
necessary a single external dropper resistor in parallel can be fitted to meet ESI 48-4 ESI 1
requirements.
Low Burden Status Input performance
Nominal
Operating Range
Typical burden
110, 125
87.5 to 137.5 V DC
1.75 mA to 3.0 mA
220, 250
175 to 280 V DC
1.75 mA to 3.0 mA
110/125 V minimum pick-up voltage typically 50 – 60 V d.c.
220/250 V minimum pick-up voltage typically 100 – 120 V d.c.
1.3
OUTPUT CONTACTS
Contact rating to IEC 60255-0-20
Attribute
Value
Carry continuously
5 A AC or DC
Make and carry
(L/R ≤ 40 ms and V ≤ 300 V)
for 0.5 s
for 0.2 s
AC resistive
AC inductive
Break
( ≤ 5 A and ≤ 300 V)
20 A AC or DC
30 A AC or DC
1250 VA
250 VA at p.f. ≤ 0.4
DC resistive
75 W
DC inductive
30 W at L/R ≤ 40ms
50 W at L/R ≤ 10ms
Minimum number of operations
Minimum recommended load
1.4
FUNCTIONAL PERFORMANCE
1.4.1
Phase-fault Overcurrent Protection
1000 at maximum load
0.5 W at minimum of 10mA or 5V
A time-delayed characteristic (IDMTL, DTL) and 3 instantaneous/DTL characteristics (Lowset, Highset
1 and Highset 2) are provided.
1.4.1.1 Time Delayed Characteristic
Operate Level
Attribute
Value
Is
Setting range
0.05, 0.1…2.50 xIn
Iop
Operate level
105 % Is, ± 4 % or ± 10 mA
Reset level
≥ 95 % Iop
Repeatability
±1%
Variation
-10 °C to +55 °C
≤5%
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
≤5%
Page 11 of 75
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Section 1: Performance Specification
Operate Time
Attribute
Value
Starter operate time
See Figure 1-2, ± 5 ms
char
Characteristic setting range
NI (IEC type A), VI (IEC type B), EI (IEC type C), LTI, DTL
Tm
Time multiplier setting range
0.025, 0.050…1.600
td
Delay setting range
0.00, 0.01…20.00, 20.5 …100, 101 … 300 s
t=
top
Operate time
char = NI, VI, EI, LTI
K
[IsI ]α − 1
× Tm , ± 5 % absolute or ± 30 ms,
where I = applied current,
for char = NI :
VI :
EI :
LTI :
char = DTL
K = 0.14, α = 0.02
K = 13.5, α = 1.0
K = 80.0, α = 2.0
K = 120.0, α = 1.0
td, ± 1 % or ± 10 ms
Repeatability
± 1 % or ± 10 ms
Overshoot time
< 40 ms
Disengaging time
< 42 ms
Reset setting
INST, 1, 2…60 s
Variation
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
(IEC type A)
(IEC type B)
(IEC type C)
≤5%
Figure 1-1 shows the operate times for the four IDMTL curves with a time multiplier of 1. Figure 1-2
shows the instantaneous operate times for the principal overcurrent starter. These operate times apply
to non-directional characteristics. Where directional control is applied then the directional element
operate time (section 1.4.4) should be added to give total maximum operating time.
1.4.1.2 Lowset, Highset 1, Highset 2
Operate Level
Attribute
Value
Is
Setting range
0.05, 0.1…2.5, 3.0…52.5 xIn
Iop
Operate level
100 % xIs, ± 5 % or ± 10 mA
Reset level
≥ 95 % Iop
Repeatability
±1%
Transient overreach
(X/R ≤ 100)
≤ -5 %
Variation
-10 °C to +55 °C
≤5%
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
≤5%
Operate Time
Attribute
Value
tstart
Starter operate time
see Figure 1-3 and Figure 1-4, ± 5 ms
td
Delay setting
0.00, 0.01…20.00, 20.5 …100, 101 … 300 s
top
Operate time
td + tstart, ± 1 % or ± 10 ms
Repeatability
± 1 % or ± 10 ms
Overshoot time
< 40 ms
Disengaging time
< 42 ms
Page 12 of 75
Section 1: Performance Specification
Attribute
Variation
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Value
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
≤5%
Figure 1-3 and Figure 1-4 show the instantaneous highset and lowset outputs. These instantaneous
operate times apply to non-directional characteristics. Where directional control is applied then the
directional element operate time (section 1.4.4) should be added to give total maximum operating
time.
1.4.2
Earth-fault Overcurrent Protection
A main characteristic (IDMTL, DTL) and 3 DTL characteristics (Lowset, Highset 1 and Highset 2) are
provided.
1.4.2.1 Time Delayed Characteristic
Specification as for phase-fault overcurrent (section 1.4.1.1).
1.4.2.2 Lowset, Highset 1, Highset 2
Specification as for phase-fault overcurrent (section 1.4.1.2).
1.4.3
Sensitive/Restricted Earth-fault Protection
A single element with three timing characteristics (lowset, DTL1 and DTL2) is provided.
Operate Level
Attribute
Value
Is
Current setting
0.005, 0.010…0.960 xIn
Iop
Operate level
100 % Is, ± 5 %
Reset level
≥ 95 % Iop
Repeatability
±1%
Variation
-10 °C to +55 °C
≤5%
47 Hz to 52 Hz
57 Hz to 62 Hz
≤5%
Note. SEF relays are required to suppress 2nd, 3rd and higher harmonics and have a frequency
response at minimum setting as shown in Figure 1-5.
Operate Time
tlowset,
tDTL1,
tDTL2
Attribute
Value
Delay setting (lowset, DTL1, DTL2)
0.00, 0.01…20.00, 20.5 …100, 101 … 300 s
Operating time
lowset
tlowset, ± 1% or ± 10 ms
DTL1
tDTL1, ± 1% or ± 10 ms
DTL2
tDTL1 + tDTL2, ± 1% or ± 10 ms
Repeatability
± 1 % or ± 10 ms
Overshoot time
< 40 ms
Disengaging time
< 42 ms
Variation
47 Hz to 52 Hz
57 Hz to 62 Hz
≤ 5%
Figure 1-6 shows the sensitive earth fault starter output. This instantaneous operate time applies to
non-directional characteristics. Where directional control is applied then the directional element
operate time (section1.4.4) should be added to give total maximum operating time.
Page 13 of 75
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
1.4.4
Section 1: Performance Specification
Directional Characteristics
Applies to Argus 2 and Argus 6 relays only.
Directional characteristics can be applied to phase-fault overcurrent elements, earth-fault overcurrent
elements and single-pole sensitive earth-fault models.
Two types of directional element exist, referred to below as type I and type II. On a particular model
the type of element in the relay can be identified from the range of the angle setting as listed below: Operate Angle
Attribute
θs
CA
Value
Phase-fault
type I: +30, +45 °
type II: -90, -89…0, +1…+90 °
Earth-fault
type I: 0, -15, -45, -65 ° (see note below)
type II: -90, -89…0, +1…+90 °
type I at 50 Hz,
type II
θs, ± 5 °
type I at 60 Hz
Phase-fault: +25 ± 5 ° or +40 ± 5 °
Earth-fault: 0 ± 5 °, -13 ± 5 °,-46 ± 5 ° or -67 ± 5 °
forward
CA - 87.5 ° ± 5 °
to
CA + 87.5° ± 5 °
reverse
(CA - 180°) - 87.5° ± 5 °
to
(CA - 180°) + 87.5° ± 5 °
10°C to +55°C
±5°
47 Hz to 52 Hz
57 Hz to 62 Hz
type I: ± 2.5 ° per 5 Hz variation
type II: ± 2.5 °
Angle setting
Characteristic
angle (I with
respect to V)
Operating angle
Variation in
characteristic
angle
Note. Some models are available in which the -65 ° setting is replaced by a -90 ° setting.
Operate Threshold
Attribute
Minimum levels for
operation
Value
I
> 5 % In
V (p/f)
>2V
V (e/f)
> 3.3 V
Operate Time
Attribute
Value
Operate time
type I: typically 20 ms at characteristic angle
type II: typically 40 ms at characteristic angle
Reset time
type I: typically 20 ms at characteristic angle
type II: typically 40 ms at characteristic angle
See Figure 1-7.
1.4.5
Circuit Breaker Fail
Operate Level
Attribute
Value
Is
Phase Fault setting
Off, 0.05, 0.1 … 1.0 xIn
Is
Earth Fault Setting
Off, 0.05, 0.1 … 1.0 xIn
Is
SEF Setting
Off, 0.05, 0.1 … 1.0 xIn
Iop
Operate Level
100% Is ± 5%
Reset Level
± 1%
Repeatability
±1%
Page 14 of 75
Section 1: Performance Specification
Attribute
Variation
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Value
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
≤5%
Operate Time
tCBF1,
tCBF2
Attribute
Value
Delay setting (retrip, backtrip)
0.00, 0.01…20.00, 20.5 …100, 101 … 300 s
Operating time
1.4.6
retrip
tCBF1, ± 1 % or ± 10 ms
backtrip
tCBF1 + tCBF2, ± 1 % or ± 10 ms
Repeatability
± 1 % ± 10 ms
Overshoot time
< 40 ms
Disengaging time
< 42 ms
Auto-reclose
Integrated with the Overcurrent, Low Set, Delay and High Set 1 and High Set 2 elements.
1.4.7
Attribute
Value
Number of reclose shots
up to 4(separate for phase-fault, earth-fault, SEF and external)
Timers
Reclose DTL 1, 2, 3, 4; Reclaim time
(separate for phase-fault, earth-fault, SEF and external)
Timer ranges
0.20, 0.21…2.0, 2.1…20, 21…300, 360…
3600, 3900…14400 s
Time accuracy, all timers
setting ± 1 % or 10 ms
Repeatability
±1%
Instrumentation
Voltage, power and power factor instruments are available on Argus 2 type II models only.
Instrument Value
Reference
Typical accuracy
I
Current
I ≥ 0.1 xIn
± 1 % In
V
Voltage
V ≥ 0.8 xVn
± 1 % Vn
Power, real and apparent
V = Vn, I ≥ 0.1 xIn, pf ≥ 0.8
± 3 % Pn, where Pn = Vn x In
Power factor
V = Vn, I ≥ 0.1 xIn, pf ≥ 0.8
± 0.05
pf
1.4.8
Communication Interface
Attribute
Value
Physical layer
Fibre-optic (option EIA RS-485)
Connectors
STTM (BFOC/2.5) (RS-485 electrical 4mm terminal)
Recommended fibre
62.5/125 µm glass fibre with STTM connector
Launch power (into recommended fibre)
-16 dBm
Receiver sensitivity
-24 dBm
Protocol
IEC 60870-5-103 or MODBUS RTU
‘ST’ is the registered trade mark of AT&T Co.
Page 15 of 75
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
1.4.9
Section 1: Performance Specification
Real Time Clock
Attribute
Value
Accuracy
± 50 ppm (equivalent to ± 180 ms per hour)
1.5
ENVIRONMENTAL PERFORMANCE
1.5.1
General
1.5.1.1 Temperature
IEC 60068-2-1/2
Type
Level
Operating range
-10 °C to +55 °C
Storage range
-25 °C to +70 °C
1.5.1.2 Humidity
IEC 60068-2-3
Type
Level
Operational test
56 days at 40 °C and 95 % relative humidity
1.5.1.3 Insulation
IEC 60255-5
Type
Between any terminal and earth
Between independent circuits
Across normally open contacts
Level
2.0 kV AC RMS for 1 min
1.0 kV AC RMS for 1 min
1.5.1.4 IP Ratings
1.5.2
Type
Level
Installed with cover on
IP 51
Installed with cover removed
IP 30
Immunity
1.5.2.1 Auxiliary DC Supply Variation
Quantity
Value
Allowable superimposed ac component
≤ 12% of DC voltage
Allowable breaks/dips in supply
(collapse to zero from nominal voltage)
≤ 20ms
1.5.2.2 High Frequency Disturbance
IEC 60255-22-1 Class III
Type
Level
Variation
Common (longitudinal) mode
2.5 kV
Series (transverse) mode
1.0 kV
≤3%
1.5.2.3 Electrostatic Discharge
IEC 60255-22-2 Class III
Page 16 of 75
Section 1: Performance Specification
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Type
Level
Variation
Contact discharge
8.0 kV
≤5%
Type
Level
Variation
20 MHz to 1000 MHz
10 V/m
≤5%
Type
Level
Variation
5/50 ns 2.5 kHz repetitive
4kV
≤3%
Type
Level
Variation
Between all terminals and earth, or
between any two independent circuits
4.0 kV, 1.2/50 µs or 8/20 µs
≤5%
Type
Level
Variation
0.15 to 80 MHz
10 V
≤5%
1.5.2.4 Radiated Radio Frequency Interference
IEC 60255-22-3 Class III
1.5.2.5 Fast Transients
IEC 60255-22-4 Class IV
1.5.2.6 Surge Immunity
IEC 60255-22-5
1.5.2.7 Conducted Radio Frequency Interference
IEC 60255-22-6
1.5.3
Emissions
1.5.3.1 Radiated Radio Frequency Interference
IEC 60255-25
Type
Limits at 10 m, Quasi-peak
30 to 230 MHz
40 dB(µV)
230 to 10000 MHz
47 dB(µV)
1.5.3.2 Conducted Radio Frequency Interference
IEC 60255-25
Limits
Type
1.5.4
Quasi-peak
Average
0.15 to 0.5 MHz
79 dB(µV)
66 dB(µV)
0.5 to 30 MHz
73 dB(µV)
60 dB(µV)
Type
Level
Variation
Vibration response
0.5 gn
Vibration endurance
1.0 gn
≤5%
Mechanical
1.5.4.1 Vibration (Sinusoidal)
IEC 60255-21-1 Class I
Page 17 of 75
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Section 1: Performance Specification
1.5.4.2 Shock and Bump
IEC 60255-21-2 Class I
Type
Level
Shock response
5 gn, 11 ms
Shock withstand
15 gn, 11 ms
Bump test
10 gn, 16 ms
Variation
≤5%
1.5.4.3 Seismic
IEC 60255-21-3 Class I
Type
Level
Variation
Seismic response
1 gn
≤5%
1.5.4.4 Mechanical Classification
Type
Level
Durability
> 106 operations
Page 18 of 75
Section 1: Performance Specification
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
10000
1000
Time (s)
100
10
long time inverse
normal inverse
1
very inverse
0.1
extremely inverse
0.01
1
10
Current (multiple of setting) - I/Is
100
Figure 1-1 IDMTL Curves (Time Multiplier=1)
Page 19 of 75
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Section 1: Performance Specification
Time (ms)
40
30
20
10
0
0
5
10
15
Current (multiple of setting) - I/Is
20
25
20
25
20
25
Figure 1-2 Overcurrent Starter Operate Time to Contact
Time (ms)
40
30
20
10
0
0
5
10
15
Current (multiple of setting) - I/Is
Figure 1-3 Instantaneous Highset Operate Time to Contact
Time (ms)
40
30
20
10
0
0
5
10
15
Current (multiple of setting) - I/Is
Figure 1-4 Instantaneous Lowset Operate Time to Contact
Page 20 of 75
Section 1: Performance Specification
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P20007 issue 2004/05
120
Pick-up Level (mA)
100
80
60
40
20
0
50
60
70
Frequency (Hz)
80
90
Figure 1-5 Sensitive Earth-fault Frequency Response (Is = 5 mA)
Time (ms)
40
30
20
10
0
0
5
10
15
Current (multiple of setting) - I/Is
20
25
Figure 1-6 Sensitive Earth-fault Operate Time to Contact
Page 21 of 75
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Section 1: Performance Specification
120
Time (ms)
100
80
60
40
20
0
-90
-60
-30
0
30
60
Angle from Characteristic Angle (°)
Figure 1-7 Directional Timing Characteristic
Page 22 of 75
90
Section 2: Functional Description
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P20007 issue 2004/05
Section 2: Functional Description
2.1
INTRODUCTION
The Argus overcurrent relays incorporate a range of protection elements and functions that, together
with the integrated control, automation, display and communication functions, provide comprehensive
protection for application in distribution substations or backup protection on transmission feeders.
The protective functions that can be provided are shown in Figure 2-1, together with the analogue and
digital input signals and outputs.
51
IA
IB
IC
51N
phase-fault time delayed
overcurrent (charact.)
ph A
ph B
ph C
P/F Starter
50N
earth-fault instantaneous
overcurrent (lowset)
50
phase-fault instantaneous
overcurrent (lowset)
P/F Lowset
ph A
ph B
ph C
50N
earth-fault instantaneous
overcurrent (highset 1)
50
phase-fault instantaneous
overcurrent (highset 1)
P/F Highset 1
50N
earth-fault instantaneous
overcurrent (highset 2)
P/F Highset 1 Inhibit
50
P/F Highset 2
ph A
ph B
ph C
50N / 87G
sensitive earth-fault /
restricted earth-fault
ISE
SEF Lowset Inhibit
P/F Highset 2 Inhibit
SEF Delay 2 Inhibit
phase-fault directional
overcurrent
VAB
Argus 2 and Argus 6 only
P/F FWD Block
P/F REV Block
ph A
ph B
ph C
IE (ISE)
67N
ph A
ph B
ph C
V Starter
V Trip
V Block Alarm
CB Open
CB Closed
79
Reclose Block
circuit breaker fail
CB Fail 1
E/F ARC Off
CB Fail 2
SEF/REF ARC Off
ARC Status A
74TC
Trip & ARC
trip circuit supervision
Close & Lockin
IA
50 CTF
current transformer failure
IB
IC
Argus 2 and Argus 6 only
P/F Lowset Inhibit
autoreclose
P/F ARC Off
50BF
Fault Trigger
E/F REV Block
E
P/F, E/F & SEF Protection Element output data
undervoltage / overvoltage
Argus 2 type II only
E/F FWD Block
earth-fault directional
overcurrent
VN
27 / 59
Trip Circuit Fail
SE/RE
SEF/REF Starter
SEF/REF Lowset
SEF/REF Delay 1
SEF/REF Delay 2
SEF Delay 1 Inhibit
67
VCA / VC
E/F Highset 2
E
E/F Highset 2 Inhibit
phase-fault instantaneous
overcurrent (highset 2)
VBC / VB
E/F Highset 1
E
E/F Highset 1 Inhibit
ph A
ph B
ph C
VAB / VA
E/F Lowset
E
E/F Lowset Inhibit
P/F Lowset Inhibit
VCA
E/F Charact.
E
E/F Charact Inhibit
P/F Charact Inhibit
VBC
E/F Starter
earth-fault time delayed
overcurrent (charact.)
IE
P/F Charact.
Trip & Lockout
CT Failure
Close & Reclaim
E/F Lowset Inhibit
SEF Lowset Inhibit
Lockout Alarm
Close Pulse
AUX Close
ARC Active
Reclaimed
SA Blocked
SA Alarm
SA Trip
Hot Line Working
Argus 4 and Argus 6 only
P300008 Protection Functions / Overall
Figure 2-1 Overview of Argus Relay Protection Functions
Scaled analogue inputs are derived via input transformers. Control/inhibit input signals and output
relays can be user mapped to be raised from any one, or more, status inputs; similarly, protection,
alarm and control element outputs can be user mapped to output relays. The user can thus create an
individual Input/Output matrix mapping specific to each installation. Each status input can be set to be
inverted and/or latched and have pick-up and drop-off delay times set. Each output relay may be
individually set to be latched (Hand Reset).
The flexibility of this input/output mapping coupled to the Protection and Control functions and Settings
Group selection enables users to integrate scheme functions into the ARGUS Relay to produce a
sophisticated protective device
Each of the functions shown in Figure 2-1 is described in the relevant sections below.
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2.1.1
Section 2: Functional Description
Models
A variety of Argus overcurrent protection models is available. Different combinations of the functions
shown in Figure 2-1 are provided in each model to achieve different protective requirements.
Four series of relays are provided within the range:
•
•
•
•
Argus 1 – overcurrent protection
Argus 2 – directional overcurrent protection
Argus 4 – overcurrent protection and integrated autoreclose
Argus 6 – directional overcurrent protection and integrated autoreclose
Two types of current input circuits are used in the Argus range. One is used for phase-fault (P/F) and
earth-fault (E/F) protection. The second type provides harmonic filtering and is used for sensitive
earth-fault (SEF) and restricted earth-fault (REF) protection.
Two types of directional/voltage inputs are used in the Argus 2 series. Type I provides a fixed set of
characteristic angles; type II allows any angle to be set and provides a voltage protection element and
voltage and power measurands. Argus 6 series relays all have a type I voltage input.
The Diagrams and Parameters document for each series lists explicitly the functions that are provided
within each model.
2.1.2
Document Organisation
The remainder of Section 2: Functional Description is organised as follows:
Table 2-1
Overview of Functional Description Sections
Section
Principal
Setting Menus
Description
2.2
Configuration
System Config.
Configuration of Argus for system requirements: system
frequency, CT/VT ratios, identifiers, password etc.
2.3
Phase-Fault
Protection
51
50
50
50
51N
50N
50N
50N
phase-fault time delayed overcurrent (charact.)
phase-fault instantaneous overcurrent (lowset)
phase-fault instantaneous overcurrent (highset 1)
phase-fault instantaneous overcurrent (highset 2)
earth-fault time delayed overcurrent (charact.)
earth-fault instantaneous overcurrent (lowset)
earth-fault instantaneous overcurrent (highset 1)
earth-fault instantaneous overcurrent (highset 2)
sensitive earth-fault, or
restricted earth-fault
and
Earth-fault
Overcurrent
2.4
Sensitive Earth-fault and
Restricted Earth-fault
Protection
50N
87G
2.5
Circuit Breaker Fail
Protection
50BF circuit breaker fail
2.6
Cold Load Protection
System Config. +
Auto-reclose
Application of different settings group when energising a
cold load.
2.7
Directional
Directional
67
67N
2.8
Voltage Protection
Voltage
27/59 undervoltage/overvoltage protection
2.9
Auto-reclose
Auto-reclose
79
2.10
Trip Circuit Supervision
Status Config.
74TC trip circuit supervision
2.11
Status Inputs and
Relay Outputs
Status Config. +
O/P Relay Config.
Pick-up and drop-off timers, inversion, latching and
minimum energise time.
2.12
Communications
Communications
Communication with PC or control system.
2.13
Data Storage
Data Storage
Event, fault and waveform records.
2.14
Maintenance
CB Maintenance
Assistance for maintenance of circuit breakers, protection
schemes and the Argus relay.
2.15
Linesman
Linesman Mode
Enables easy enabling/disabling of protection and autoreclosing for line work.
Page 24 of 75
phase-fault directional overcurrent
earth-fault directional overcurrent
auto-reclose
Section 2: Functional Description
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Notes
1. Within Section 2: Functional Description the following notational and formatting conventions are used:
•
•
•
•
Item in menu structure:
Setting:
Setting value:
Alternatives:
Item
sub-menu:setting name
value
[1st] [2nd] [3rd]
2. The purpose of this document is to describe the capabilities and functionality of the Argus Overcurrent
Protection relays. The User Manual document describes how to set up and operate the Argus: apply
configuration, settings and passwords, view instruments and set default instruments, and retrieve fault
data.
2.2
CONFIGURATION
This section provides advice for configuring the Argus relay via the Settings MODE - System Config.:menu
to suit the overall requirements of the system and the protection scheme: e.g. system frequency,
CT/VT ratios, identifiers, user alarm text, date & time, password, etc.
2.2.1
Settings Groups
Settings groups are used to parameterise the protection and configuration of the Argus relay. Eight
Groups each containing a completely independent set of setting values can be stored in the relay, only
the designated Group as set in System Config.:Active Setting Group = Gn will be active i.e. applied, at a
time. Examples of uses for settings groups: i.e. summer and winter settings, cold load settings,
alternative settings values to cover special temporary situations, test settings, embedded generation
in/out settings etc.
Some settings are common across all groups e.g. Relay Identifier etc. Settings that can be set to a
unique value in each group have a setting description beginning with Gn, where n is the number of the
Group currently being displayed e.g. G1 . The settings in any Group can be accessed for editing via
System Config.:Settings group Edit/View = Gn including the currently Active Group; it is, however, strongly
recommended that editing of settings is only done in a setting group that it is off-line i.e. not-active.
To assist in the parameterisation of different settings groups, where only a few settings differ, after
entering user settings into one group the completed set of setting values can be copied from that
group to another using the System Config.:Copy Group From Gn to Gx setting, note that settings cannot be
copied to the currently active group. Necessary settings changes may then be implemented.
Any group as set in Status Config.:Settings Group Select can be selected dynamically, while the Relay is inservice, by raising the designated status input. When that status input is cleared, the settings group
reverts to the previously active group, as specified by another status input or System Config.:Active
Settings Group. If more than one status input is raised at the same time, the group associated with the
lowest number status input takes precedence. e.g. Status 2 - Group 8 takes precedence over Status 3
- Group 2. Change of group takes typically 15 ms but less than 17.5 ms.
Argus 2 - 500 series relays with a type II voltage input can also be programmed to change settings
group on the operation of the voltage element, forcing a group change regardless of any starters
which may be raised. This function can be used to set-up the Argus 2 to implement Voltage
Controlled Overcurrent operation. Change of group takes typically 40 ms but less than 50 ms.
Table 2-2
Settings Group Settings
Sub-menu: System Config.
Setting name
Active Settings Group
Settings Group Edit/View
Copy Group
Range (bold = default)
Units
Notes
1,2…8
From 1,2…8 to 1,2…8
Sub-menu: Status Config.
Setting name
Settings Group Select
Range (bold = default)
_, 1, 2…8 for each status input (and
Vop) (default: _ _ _ _ _ _ _ _ _ _)
Units
Notes
Argus 2 type II relays can change
settings group from operation of the
voltage element.
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2.2.2
Section 2: Functional Description
System Frequency
The relay can be user set for nominal 50 Hz or 60 Hz operation using System Config.:Power System
Frequency.
Table 2-3
System Frequency Setting
Sub-menu: System Config.
2.2.3
Setting name
Range (bold = default)
Units
Power System Frequency
50, 60
Hz
Notes
Current and Voltage Inputs
Input Type Selection
On 3-pole models and 4-pole models with an SEF/REF input, the user can set the ‘pole B’ current
input to be either the phase-fault B input (P/F) or an earth-fault input (E/F) using the System Config.:Set
Pole B Type setting. When the input is set to P/F all settings related to the earth-fault will be hidden from
view.
When an SEF/REF input is provided, its designation can be set to show ‘SEF’ or ‘REF’ using the
System Config.:Earth Fault Mode Select setting. This changes only the text identifier which appears in
various locations within the menu system, not the functionality of the element.
Phase Rotation
The setting System Config.:Phase Rotation allows the user to select the applicable system phase rotation.
Ratings and CT/VT Ratios
The current input for each pole can be user selected for operation from a 1A or 5A CT secondary. The
appropriate connections are made on the relay terminals. The appropriate rating should be set using
the System Config.:P/F [E/F] [SEF/REF] Rating (In) settings to allow the Argus to correctly calculate the
measured current for display purposes. This setting will not affect the Protection Menu setting’s
display if they are displayed as xIn, however see Current Display Bases below.
CT and VT ratios can be set, allowing the relay to calculate primary currents and voltages for display.
VT settings appear on Argus 2 relays with type II directional elements only. In addition to the VT ratio
setting a VT connection setting allows a three phase-earth VT to be used, with the relay calculating
the neutral voltage internally.
Current Display Bases
The System Config.:Current Display setting allows the overcurrent protection settings to be displayed in
primary amps, secondary amps, or xIn i.e. multiple of relay nominal current. The user can thus enter
settings in the most convenient units. The Argus will perform the necessary conversion if the display
units are changed.
Note. For the Argus to correctly calculate these values, the nominal CT Secondary Ratings and CT
Ratios must be correctly entered, see above.
Table 2-4
Current and Voltage Input Settings
Sub-menu: System Config.
Setting name
Range (bold = default)
Set Pole B Type
P/F, E/F
Some Argus 1 and 2 models only
Earth Fault Mode Select
SEF, REF
Models with SEF only
Phase Rotation
A-B-C, A-C-B
Argus 2 (type II) only
P/F Rating (In)
E/F Rating (In)
SEF/REF Rating (In)
P/F CT Ratio
E/F CT Ratio
SEF/REF CT Ratio
Page 26 of 75
Units
1, 5
5, 10, 15…300…10000
A
:
1, 5
Notes
Section 2: Functional Description
2.2.4
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Setting name
Range (bold = default)
Units
Notes
VT Connection
Ph-N, Ph-Ph
VT Primary
0, 1…9 for each of 6 digits
(default: 11000)
V
Argus 2 (type II) only
VT Secondary
40.0, 40.1…70.0, 70.5…110.0…150.0 V
Current Display
xIn, PRIMARY, SECONDARY
Export power / lag VAr Sign
+ve/+ve, +ve/-ve, -ve/+ve, -ve/-ve,
Identifier
User defined identifying text can be programmed into the relay using the System Config.:Set Identifier
setting. This text is displayed on the title screen of the Argus and is used in communications with
ReyDisp to identify the Argus relay.
Table 2-5
Identifier Setting
Sub-menu: System Config.
2.2.5
Setting name
Range (bold = default)
Set Identifier
ABCDEFGHIJKLMNOPQRSTUVWX
YZ1234567890 -+/
(default = ARGUS n e.g. ARGUS 1)
Units
Notes
Up to 16 characters
General Alarms
General Alarms are user-defined text messages displayed on the LCD when mapped status inputs are
raised. Up to five general alarms can be programmed, however this is limited by the number of status
inputs on the device. Each general alarm can be triggered from one or more status inputs, as
programmed by the appropriate setting.
The System Config.:SET Alarm n setting (where n is the alarm number) allows the user to programme a
text message which is displayed on the LCD when the associated status inputs are raised, as set by
Status Config.: Alarm n. The general alarm will also generate an event. If it is wished to operate an output
contact for the alarm this can be programmed using the status input to output relay mapping (section
2.11).
If multiple alarms are active simultaneously the messages are linked in series in a rolling display on
the LCD, separated by a ‘+’ character. If it is necessary to display alarm messages longer than 13
characters then a status input may be mapped to multiple alarms, in which case a longer message will
result.
All general alarms raised when a Fault Trigger is generated will be logged into the Fault Data record,
transient general alarms will thus be latched and displayed at the end of the scrolling ‘Fault Data’
screen, see section 2.13.2
Table 2-6
General Alarm Settings
Sub-menu: System Config.
Setting name
Range (bold = default)
SET Alarm 1
SET Alarm 2
…
SET Alarm 5
ABCDEFGHIJKLMNOPQRSTUVW
XYZ 1234567890 -+/
(ALARM n)
Units
Notes
Up to 13 characters per name
Sub-menu: Status Config.
Setting name
Gn Alarm 1
Gn Alarm 2
…
Gn Alarm 5
Range (bold = default)
mappable to any status input
(default= _ _ _ _ _ _ _ _ _ )
Units
Notes
Default - not mapped to any status
Page 27 of 75
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2.2.6
Section 2: Functional Description
Direction Tags
Argus 2 and Argus 6 only
User defined text names for the Forward and Reverse directions can be applied to assist in
identification of fault direction. For example, ‘FWD’ could be renamed ‘FEEDER X’, and ‘REV’
renamed ‘BUSBAR Y’.
Note: Directional Relay convention is such that current flowing away from a busbar flows in the
Forward direction.
These identifiers are used in the fault records to identify the direction of the fault.
Table 2-7
Direction Settings
Sub-menu: System Config.
Setting name
Range (bold = default)
FWD Name Tag
ABCDEFGHIJKLMNOPQRSTUVWX
YZ1234567890 -+/
(FWD)
REV Name Tag
2.2.7
Units
Notes
Argus 2 and Argus 6 only
Up to 13 characters per name
ABCDEFGHIJKLMNOPQRSTUVWX
YZ1234567890 -+/
(REV)
Real Time Clock
The date and time can be programmed and then maintained by the internal real time clock. The clock
is also maintained for 2-3 week while the relay is de-energised. Additionally, in order to maintain
synchronism within a substation, all Argus relays can be synchronised to the nearest second or minute
using a mapped status input or via the IEC 60870-5-103 protocol Time Synchronising Frame.
The System Config.:Clock Sync. From Status setting specifies whether the clock will be synchronised to the
nearest minute or second when the status input is activated.
Table 2-8
Real Time Clock Settings
Sub-menu: System Config.
Setting name
Range (bold = default)
Calendar – Set Date
DD/MM/YY (01/01/00)
Units
Clock - Set Time
When user presses ‘ENTER’ after
editing, seconds are zeroed and clock
begins counting.
HH:MM:SS (00:00:00)
Clock Sync. From Status
Notes
Minutes, Seconds
Sub-menu: Status Config.
2.2.8
Setting name
Range (bold = default)
Gn Clock Sync
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Units
Notes
Default - not mapped to any status
Default Instruments
When a user stops accessing the keypad e.g. on leaving the Sub/Station the relay will, after a user set
delay, automatically switch to default metering whereby the user selected default instruments are
displayed in turn at 5 seconds intervals without user intervention. The time before this occurs is
programmable with the System Config.:Default Screen Time setting.
The user can select/deselect the instruments to be displayed in the default metering cycle by going to
the Instrument MODE.: scrolling down to the required default instrument and using the ENTER key. This
is described in detail in the User Manual document, section 1.3.4.
This function enables the user to set the relay to automatically return to displaying ammeters and
other instruments such as ARC Status or Counters. Therefore, essential data is presented to visiting
engineers without the need to negotiate the relay’s HMI menu structure
Page 28 of 75
Section 2: Functional Description
Table 2-9
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Default Instrument Setting
Sub-menu: System Config.
2.2.9
Setting name
Range (bold = default)
Default Screen Time
10 sec, 60 sec, 5 min, 1 hour
Units
Notes
Password
All settings on Argus relays can be password protected. The default password is ‘NONE’ making the
password protection ‘not active’ therefore all settings can be edited without the relay requesting a
password. If a password is set by the user then, before a setting can be changed, the set password
must be entered. This allows access for further settings changes to be made without the need to reenter the password each time. If the user then leaves the relay keypad untouched for an hour the
password protection is re-enabled. The Password setting is changed using the System Config.:Change
Password setting. The user set password is also required to be entered for setting changes or
commands performed via the communications link.
Note: if the password is lost/forgotten it can be recovered if the code number shown in the password
screen is communicated to VA TECH Reyrolle ACP Ltd.
Table 2-10 Password Setting
Sub-menu: System Config.
Setting name
Range (bold = default)
Change Password
ABCDEFGHIJKLMNOPQRSTUVWXY
Z1234567890 -+/
Units
Notes
4 characters
(NOT ACTIVE)
2.3
PHASE-FAULT AND EARTH-FAULT OVERCURRENT
Argus relays can have up to three phase-fault poles and an earth-fault pole. Each pole has four
overcurrent elements which can be used with the starters in blocking and protection schemes.
Phase-fault and earth-fault poles each have a delayed characteristic plus three instantaneous/definite
time delay elements. In the directionally controlled Argus 2 and Argus 6 relays each phase-fault and
earth-fault delay characteristic, lowset and highset 1 & 2 elements can be independently programmed
via their directional control settings to non-directional, forward directional, reverse directional or bidirectional (tri-state) operation via the appropriate directional control setting, e.g. Protection:P/F Charact.
Dir Control for the phase-fault delay characteristic element.
The operation start of each element can be inhibited from a mapped status input, set via the STATUS
CONFIG MENU, to allow comprehensive blocking schemes to be developed. Furthermore, on Argus 2
relays with type II directional elements, the voltage element output can be set to raise inhibits.
The current input signals are sampled at a frequency of 1600 Hz (32 times per 50 Hz cycle) giving a
flat frequency response between 47 Hz and 550 Hz, higher harmonics are also included in the r.m.s.
calculation. This makes Argus ideal for applications where true RMS accuracy of measurement and
timing must be maintained in the presence of high harmonic content in the current waveform e.g.
protection of lines carrying variable speed motor loads or for capacitor bank protection.
2.3.1
Delay Characteristic element
The Protection:P/F Charact. Setting enables the current level for the delay characteristic starter to be set.
The Delay characteristic Protection:P/F Charact. Setting can be selected from Inverse Definite Minimum
Time (IDMT) characteristic type Normal Inverse (NI) (IEC type A), Very Inverse (VI) (IEC type B),
Extremely Inverse (EI) (IEC type C) and Long Time Inverse (LTI), or alternatively a Definite Time Lag
(DTL) can be chosen. The time multiplier to be applied to the delay characteristic curve is set using
the Protection:P/F Charact. Time Mult setting; if DTL has been selected this setting is replaced by the
Protection:P/F Charact. Delay setting.
Each phase has an independent current-timing element and the algorithms integrate accurately for
developing faults where current magnitude in each pole varies with time. Outputs are programmed
using the ‘O/P Relay Config.:P/F Starter‘ and ‘O/P Relay Config.:P/F Charact.‘ settings for starter pick-up and
delayed trip respectively.
Page 29 of 75
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P/F Charact. Dir Control
P/F Charact. Setting
Section 2: Functional Description
diagram shows the logic for overcurrent
* This
elements in the forward direction; reverse is
*
similar. On relays with no directional elements
these inputs and settings are omitted.
P/F Charact.
P/F Charact. Time Mult
P/F Charact. Delay
Relay Reset Delay
c
P/F Charact Inhib
Phase A starter
Ia
start
Event
≥1
P/F Starter
Phase A delayed trip
*
c
Dir'n A Fwd
Event
trip
Phase B starter
Ib
start
Event
Phase B delayed trip
* Dir'n B Fwd
c
≥1
Event
trip
P/F Charact.
Phase C starter
Ic
start
Event
Phase C delayed trip
*Dir'n C Fwd
c
Event
trip
P300008 Protection Functions / Time Delayed P/F
Figure 2-2 Functional Diagram – Characteristic Phase-fault Overcurrent Element
The earth-fault pole similarly has its own delayed overcurrent element with its own starter setting and
selectable IDMT/DTL characteristic.
This diagram shows the logic for overcurrent
E/F Charact. Dir Control
E/F Charact. Setting
* elements in the forward direction; reverse is
*
similar. On relays with no directional elements
these inputs and settings are omitted.
E/F Charact.
E/F Charact. Time Mult
E/F Charact. Delay
Relay Reset Delay
c
E/F Charact Inhib
Earth starter
Ie
start
Event
E/F Starter
Earth delayed trip
* Dir'n E/F Fwd
c
trip
Event
E/F Charact.
P300008 Protection Functions / Time Delayed E/F
Figure 2-3 Functional Diagram – Characteristic Earth-fault Overcurrent Element
2.3.2
Instantaneous elements
There are three separate instantaneous elements per pole: Lowset, Highset 1 and Highset 2. The
setting range of each element allows it to be set and used either as a lowset or highset protection, or
for overcurrent monitoring. For each element common settings are used by each of the three phase
fault poles of the relay, each element has an ‘OFF’ setting. Each element has a shaped instantaneous
characteristic plus follower time delay which can be used to provide time grading margins, sequence
co-ordination grading, or for scheme logic. The instantaneous elements have transient free, low
overreach, operation under conditions of high values of system X/R.
Figure 2-3 and the following text describe the operation of the Lowset element, Highset 1 and Highset
2. Each of these elements is identical in operation.
Each instantaneous element has its own directional control setting Protection:P/F Lowset Dir Control. A
current level setting Protection:P/F Lowset Setting sets the pickup level, which can be followed by a time
delay, Protection:P/F Lowset Delay, the element output is mapped O/P Relay Config.:P/F Lowset.
Page 30 of 75
Section 2: Functional Description
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
This diagram shows the logic for
P/F Lowset Dir Control
P/F Lowset Setting
* overcurrent elements in the forward
*
direction; reverse is similar. On relays
with no directional elements these
inputs and settings are omitted.
c
P/F Lowset Inhib.
P/F Lowset Delay
Phase A
lowset starter
Ia
>
*
Event
Phase B
lowset starter
>
Phase B
lowset trip
Event
≥1
Event
P/F Lowset
c
Dir'n B Fwd
Phase B
lowset starter
Ic
>
*
Event
c
Dir'n A Fwd
Ib
*
Phase A
lowset trip
Phase B
lowset trip
Event
Event
c
Dir'n C Fwd
P300008 Protection Functions / Instantaneous P/F
Figure 2-4 Functional Diagram – Instantaneous Phase-fault Overcurrent Elements
The earth-fault pole similarly has its own Instantaneous Lowset, Highset1 and Highset2 overcurrent
elements with their own starter settings and selectable DTL characteristic.
This diagram shows the logic for
E/F Lowset Dir Control
E/F Lowset Setting
* overcurrent elements in the forward
*
direction; reverse is similar. On relays
with no directional elements these
inputs and settings are omitted.
c
E/F Lowset Inhib.
E/F Lowset Delay
Earth lowset
starter
Ie
>
*
Dir'n E/F Fwd
Event
Earth lowset trip
Event
E/F Lowset
c
P300008 Protection Functions / Instantaneous E/F
Figure 2-5 Functional Diagram – Instantaneous Earth-fault Overcurrent Elements
Table 2-11 Phase-fault and Earth-fault Overcurrent Settings
Sub-menu: Protection
Setting name
Range (bold = default)
Units
Gn P/F [E/F] Charact. Dir Control
OFF, FWD, REV, TRI
Gn P/F [E/F] Charact. Setting
0.05, 0.10, 0.15…1.00…2.50
Gn P/F [E/F] Charact.
NI, VI, EI, LTI, DTL
Gn P/F [E/F] Charact. Time Mult
0.025, 0.050…1.000…1.600
xt
Gn P/F [E/F] Charact. Delay
0.00, 0.01…5.00…20.00, 20.5 …100, 101
… 300
sec
Notes
Argus 2 and Argus 6 only.
xIn
Gn P/F [E/F] Lowset Dir Control
OFF, FWD, REV, TRI
Gn P/F [E/F] Lowset Setting
OFF, 0.05, 0.10…1.00…2.50,
3.0, 3.5…52.5
xIn
Gn P/F [E/F] Lowset Delay
0.00, 0.01…20.00, 20.5 …100, 101 … 300
sec
see note 1 below
Argus 2 and Argus 6 only.
Gn P/F [E/F] Highset 1 Dir Control
OFF, FWD, REV, TRI
Gn P/F [E/F] Highset 1Setting
OFF, 0.05, 0.10…2.50,
3.0, 3.5…10.0…52.5
xIn
Gn P/F [E/F] Highset 1Delay
0.00, 0.01…20.00, 20.5 …100, 101 … 300
sec
Gn P/F [E/F] Highset 2 Dir Control
OFF, FWD, REV, TRI
Gn P/F [E/F] Highset 2 Setting
OFF, 0.10, 0.15…2.50,
3.0, 3.5…52.5
see note 1 below
Argus 2 and Argus 6 only.
see note 1 below
Argus 2 and Argus 6 only.
xIn
see note 1 below
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Section 2: Functional Description
Setting name
Range (bold = default)
Units
Notes
Gn P/F [E/F] Highset 2 Delay
0.00, 0.01…20.00, 20.5 …100, 101 … 300
sec
Setting name
Range (bold = default)
Units
Gn P/F [E/F] Starter
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _ )
see note 1 below
_, 1 for each output relay R1 – R11
(default: _1_ _ _ _ _ _ _ _ _ )
default settings - all protections
energise output relay 2
Sub-menu: O/P Relay Config.
Gn P/F [E/F] Charact.
Gn P/F [E/F] Lowset
Gn P/F [E/F] Highset 1
Gn P/F [E/F] Highset 2
Notes
Sub-menu: Status Config.
2.3.3
Setting name
Range (bold = default)
Gn P/F [E/F] Charact. Inhib.
Gn P/F [E/F] Lowset Inhib.
Gn P/F [E/F] Highset 1 Inhib.
Gn P/F [E/F] Highset 2 Inhib.
_, 1 for each status input S1 – S11 and
Vstart
Units
Notes
Argus 2 type II relays only, each
element can be set to be inhibited
from the voltage element starter.
(default: _ _ _ _ _ _ _ _ _ _ )
Note 1.
If the directional control is set to tri-state, these settings will be duplicated for forward and reverse directions. The
settings for the forward direction are indicated by an ‘F’ following the group number (e.g. GnF P/F Charact.), while the
settings for the reverse direction are indicated by an ‘R’ (e.g. GnR P/F Charact.).
Note 2.
The above table shows the settings for phase-fault elements, with the text for earth-fault indicated by square brackets,
e.g. Protection:Gn P/F Charact. Dir Control becomes Protection:Gn E/F Charact. Dir Control.
Flashing (Pecking) Fault Protection
Flashing Faults are characterised by a series of short pulses of fault current which are intermittent, if
the IDMT/DTL element characteristic has an instantaneous reset then it may not operate. In order to
detect and operate for such faults the relay has a setting that enables the user to set the Protection:Relay
Reset Delay. This setting modifies the reset-mode of the IDMT/DTL protection algorithm such that after
the fault current has disappeared the current time totals are held. For faults that re-appear within the
Relay Reset Delay time the current~time integration continues from the last value reached. Where the
fault current does not reappear within the Relay Reset Delay time then the integrator will reset to zero
and any subsequent fault will start a new integration of current~time. Thus for flashing faults where the
fault current pulses reappear within the set reset time, up to 60 seconds after the end of the last pulse,
the delayed characteristic will operate on the summation of the fault current~time.
Where auto-reclose is not required after a delay protection trip i.e. sequence = 2I + 1D, then the Relay
Reset-Delay time setting should be set to 60sec. Where a delay protection trip is to be followed by
auto-reclose + delay protection then this setting may be left at the default value of instantaneous or set
to a time which is less than the reclose delay between consecutive delay protection operations.
Setting times as above will provide flashing fault coverage and still allow grading between relays in
series on the system.
If this function is not required the Relay Reset Delay time can be set to ‘INST’.
Table 2-12 Flashing Fault Setting
Sub-menu: Protection
2.4
Setting name
Range (bold = default)
Units
Gn Relay Reset Delay
INST, 1,2…60
sec
Notes
SENSITIVE EARTH-FAULT AND RESTRICTED EARTH-FAULT
This element can be used for either sensitive earth-fault or high-impedance restricted earth-fault
protection schemes. The two applications are not possible simultaneously – the user must select
which is required. The restricted earth-fault scheme is described in section 2.4.1 below.
The element includes a software filter for rejection of second, third and higher harmonics of the power
system frequency. The instantaneous element, set using Protection:SEF/REF Current Setting, provides a
starter output. Two sequential DTL follower timers (Protection:SEF/REF 1st Time Delay and
Protection:SEF/REF 2nd Time Delay) plus an additional timer (Protection:SEF/REF Lowset Delay) are provided;
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all use the same Protection:SEF/REF Current Setting. The delayed reset function (section 2.3.3) is applied
on each of the two DTL timers.
Each of the three timing elements has an output, mapped by a setting. Each timing element can be
inhibited from a status input, mapped by a setting, see Figure 2-6.
In multi-pole directional Argus models the SEF element is non-directional. In single-pole directional
SEF models the directional control setting applies to all the SEF Protection elements.
In most models the SEF element is non-directional, in which case
SEF/REF Dir Control
SEF Current Setting
*
* the directional settings and control inputs can be ignored.
A single pole directional SEF model is available, for which the
diagram shows the logic for elements in the forward direction;
reverse is identical.
Ise
SEF/REF starter
>
*
c
Event
SEF/REF Starter
SEF/REF Lowset Delay
Dir'n SEF Fwd
SEF/REF lowset trip
Event
SEF Lowset
c
SEF Lowset Inhib
SEF/REF 1st Time Delay
SEF/REF stage 1 trip
Event
SEF/REF Delay 1
c
SEF Delay 1 Inhib
SEF/REF 2nd Time Delay
SEF/REF stage 2 trip
Event
SEF/REF Delay 2
c
SEF Delay 2 Inhib
P300008 Protection Functions / SEF/REF
Figure 2-6 Functional Diagram – Sensitive Earth-fault/Restricted Earth-fault Elements
Table 2-13 Sensitive Earth-fault / Restricted Earth-fault Settings
Sub-menu: Protection
Setting name
Range (bold = default)
Units
Gn SEF Dir Control
OFF, FWD, REV, TRI
Gn SEF/REF Current Setting
0.005, 0.010…0.050…0.960
xIn
Gn SEF/REF 1st Time Delay
0.00, 0.01…5.00…20.00, 20.5 …100,
101 … 300 s
sec
Gn SEF/REF 2nd Time Delay
OFF, 0.00, 0.01…5.00…20.00, 20.5
…100, 101 … 300 s
sec
Gn SEF/REF Lowset Delay
0.00, 0.01…20.00, 20.5 …100, 101 …
sec
300 s
Notes
Argus 2 Single-pole dir’n. SEF only.
see note 1 below
Sub-menu: O/P Relay Config.
Setting name
Range (bold = default)
Gn SEF/REF Starter
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _ )
Gn SEF/REF Delay 1
Gn SEF/REF Delay 2
Gn SEF/REF Lowset
GnF SEF/REF Block
GnR SEF/REF Block
Units
Notes – see note 1 below
see note 1 below
_, 1 for each output contact
(default: _ 1 _ _ _ _ _ _ _ _ _ )
default settings – all Protection
elements energise the Trip output
relay 2.
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Section 2: Functional Description
Sub-menu: Status Config.
Setting name
Range (bold = default)
Gn SEF/REF Delay 1 Inhib.
Gn SEF/REF Delay 2 Inhib.
Gn SEF/REF Lowset Inhib.
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _ )
Note 1.
2.4.1
Units
Notes
On the single-pole directional SEF model, if the directional control is set to tri-state these settings will be duplicated for
forward and reverse directions. The settings for the forward direction are indicated by an ‘F’ following the group
number (e.g. GnF SEF Current Setting), while the settings for the reverse direction are indicated by an ‘R’ (e.g. GnR SEF
Current Setting).
High Impedance Restricted Earth-fault Scheme
Externally mounted power resistors, connected in series with the relay, are required to set the stability
voltage VS. See Section 3: Application Notes for the theory and formulae required to calculated the IS
and VS settings and resistor values. A non-linear resistor may also be required to protect the scheme
wiring and current transformers against transient over-voltages at high fault levels.
2.5
PRIMARY EQUIPMENT FAIL PROTECTION
2.5.1
Circuit Breaker (Trip) Fail Protection
Provides 50CBF Trip Fail two-stage time delay with Phase, Earth and SEF current level detectors.
If the Circuit Breaker (CB) fails to respond to a Trip output and fault current continues to flow, then the
ARGUS Circuit Breaker Fail (CBF) function can be set to automatically issue a graded, time-delayed,
CBF 1 output (Re-trip) then, if that fails, a second CBF 2 output (Back Trip to an up-stream CB).
Any Protection element or Status input for which a Trip output is required must be mapped to an
output relay which in turn is mapped to ‘Fault Trigger’. When ‘Fault Trigger' is raised this enables the
CBF current level detectors that check for cessation of current flow in each pole. If and while any
current exceeds setting, specified by Protection:P/F CB Fail Setting, Protection:E/F CB Fail Setting or
Protection:SEF CB Fail Setting, then CBF Time delay 1 timer, specified by Protection:CB Fail Time Delay 1,
runs. On time-out the CB Fail 1 output is raised, this can be mapped to another output relay to provide
a re-trip output.
A second CBF timer, specified by Protection:CB Fail Time Delay 2, then starts and runs if and while current
exceeds setting. On time-out CB Fail 2 output is raised, this can be mapped to a different output relay
to provide a Back-trip output.
NB:- If CBF is to be applied then a current setting should be entered for all poles i.e. P/F & E/F & SEF
settings. Typical settings will be below the protection settings applicable for each pole; phase fault
setting can normally be above maximum Load current. The CBF scheme will then run until all currents
fall below the set detector levels. If any CBF current setting is set to OFF i.e. Zero current, then, once
enabled, the CBF function will run until all currents are zero. Grading time margins and settings will be
typically 200ms for CB Fail Time delay 1, and 200ms for CB Fail Time delay 2.
If CBF is not required then CBF Time delay 1 and CBF Time delay 2 should be set to OFF i.e. Infinity.
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Any Protection Element
CB Fail Time Delay 1
Circuit breaker fail 1
Status Input Y
Event
CB Fail 1
Fault Trigger
Output
relay
CB Fail Time Delay 2
ENABLE
EN
Circuit breaker fail 2
P/F CBF Current Setting
E/F CBF Current Setting
SEF CBF Current Setting
Event
CB Fail 2
*see note 1
Iph
Ief
≥1
Isef
Note 1:- EN, Enable input is edge triggered and level active.
IF CBF is applied then P/F & E/F & SEF must each have an ICBF current setting.
IF any CBF Current Setting = OFF (Zero) then output = 1 when enabled.
Enable/Output is Reset when all currents are OFF (Zero) or all are below setting.
P300008 Protection Functions / CBF
Figure 2-7 Functional Diagram – Circuit Breaker Fail
Table 2-14 Circuit Breaker Fail Settings
Sub-menu: Protection
Setting name
Range (bold = default)
Units
Gn P/F CB Fail Setting
OFF, 0.05, 0.1 … 1.00
xIn
Gn E/F CB Fail Setting
OFF, 0.05, 0.1 … 1.00
xIn
Gn SEF CB Fail Setting
OFF, 0.005 … 0.96
xIn
Gn CB Fail Time Delay 1
Gn CB Fail Time Delay 2
OFF, 0.00, 0.01…20.00, 20.5 …100,
101 … 300 s
sec
Setting name
Range (bold = default)
Units
Gn CB Fail 1
Gn CB Fail 2
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _)
Notes
Sub-menu: O/P Relay Config.
2.5.2
Notes
Close Fail
Argus 4 and Argus 6 only
Circuit breaker close operation is also monitored. The relay checks the status of the CB at the end of
each close pulse. If the CB has not closed then the relay locks out due to CB close fail, and any
sequence is terminated.
2.5.3
Current Transformer Failure
The current flowing from each of the Phase Current Transformers is monitored. If one or two of the
three input currents falls below the CT Supervision current setting for more than the CT Failure time
delay then CT Failure is raised. If all three input currents fall below the setting CT Failure is not raised.
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Section 2: Functional Description
CT Failure
Current Setting
CT Failure Time Delay
IA
1 out of 3 < ICTF
CT Failure
IB
2 out of 3 < ICTF
Event
IC
3 out of 3 = no-op
CT Failure
P300008 Protection Functions / CTF
Figure 2-8 Functional Diagram – Current Transformer Fail
Table 2-15 Current Transformer Fail Settings
Sub-menu: Protection
Setting name
Range (bold = default)
Units
Gn CT Failure Setting
OFF, 0.05, 0.1 … 1.00
xIn
Gn CT Failure Delay
OFF, 0.00, 0.01…20.00, 20.5 …100,
101 … 300 s
sec
Setting name
Range (bold = default)
Units
Gn CT Failure
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _ )
Notes
Sub-menu: O/P Relay Config.
2.5.4
Trip Circuit Supervision - for details see sections 2.10 and 3.8
2.6
COLD LOAD PROTECTION
Notes
Argus 4 and Argus 6 only
A cold load protection function is provided to cater for closing onto the type of load that, after being deenergised for some time, on energisation takes a high level of current for an extended period.
The System Config.:Cold Load Pickup Group setting allows the user to select the setting group number to
which the relay will switch after the circuit breaker has been open for longer than the user-set Autoreclose:Cold Load Enable time. This cold load group’s overcurrent settings will normally be set higher and
the time characteristics will be set slower than the normally-active group’s settings. The relay will
switch to the nominated cold load group n and then when the circuit breaker is closed will apply that
group’s overcurrent and auto-reclose settings until the user-set Autoreclose:Cold Load Reset time expires,
then revert to the normally-active group.
The Relay can be set up to revert to the normally active group sooner if the load current falls and
remains below the cold load group’s Protection:P/F Highset 2 Setting for longer than the Protection:P/F
Highset 2 Delay timer. Phase-fault highset 2 in the set cold load group operates as an under-current
element. This element’s setting should be set, 5% or more, below the normally-active group’s phasefault overcurrent element settings. This prevents the relay from changing back, from the cold load
group to the normally active group, before the cold load inrush current has fallen below the normally
active group’s P/F starter settings, so that when the relay reverts to the normally-active group settings
the relay does not then operate and give a trip output. The cold load group’s phase-fault highset 2
element will be picked up during cold load inrush conditions and should not be user mapped to the trip
relay.
Selecting the cold load group’s Phase Fault highset 2 to OFF will de-select this fast revert mode,
reversion will then only occur at the end of the cold load reset delay.
At the end of the cold load reset delay, if the current is still above the HS2 setting, or any starter is
picked up, the relay will issue a trip and lockout. It will then revert to the normally-active group settings.
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Automatic cold load pick-up can be disabled by setting the Auto-reclose:Cold Load Enable time delay to
OFF. This still allows Cold Load Group n to be selected via a mapped Status Input.
Table 2-16 Cold Load Pickup Settings
Sub-menu: System Config.
Setting name
Range (bold = default)
Cold Load Pickup Group
1,2…8
Units
Notes
Notes
Sub-menu: Auto-reclose
2.7
Setting name
Range (bold = default)
Units
Cold Load Enable
OFF, 0.20…2.0, 2.1…20, 21…
300, 360…3600, 3900…14400
sec
Cold Load Reset
0.20…2.0, 2.1…20, 21…300, 360…
600…3600, 3900…14400
sec
DIRECTIONAL CONTROL
Argus 2 and Argus 6 only
Each phase-fault and earth-fault delay characteristic, lowset and highset elements can be
independently programmed to non-directional, forward directional, reverse directional or bi-directional
(tri-state) operation. The SEF/REF element on most Argus 2 and Argus 6 models is not normally
directional, however, a single-pole directional SEF model is available.
Figure 1-7 illustrates the directional operating characteristic relative to the characteristic angle (CA),
historically known as the maximum torque angle. This is the phase angle of the fault current relative to
the polarising voltage reference for which the directional detector gives maximum sensitivity in the
forward operate zone. The reverse operate zone is an exact mirror image of the forward zone. The
directional element is referred to as ‘tri-state’ because conditions will occur for which neither the
forward nor the reverse element should operate.
If a protection element is programmed by the user to be non-directional then only non-directional
overcurrent settings will be presented. The element will operate independently of the output of the
directional detector and operation will occur for current above setting regardless of phase angle.
If a protection element is programmed for forward directional mode then the forward zone overcurrent
settings will be presented and operation will only occur for fault current falling within the forward
operate zone. Conversely, if a protection element is programmed for reverse directional mode then the
reverse zone overcurrent settings will be presented and operation will only occur for fault current
falling within the reverse operate zone.
Where the tri-state option is selected an element will operate for fault current above its setting in either
direction. Different overcurrent settings can be programmed for forward and reverse operation. In
addition, the forward and reverse trip output signals can be issued to different output contacts.
Directional relays can be applied to directional blocking schemes. Both phase and/or earth fault
blocking outputs can be generated for forward or for reverse direction faults, e.g. Protection:P/F FWD
Block specifies relays which will operate for a phase-fault in the forward direction.
Blocking inputs can be received via the status inputs, each of which can be programmed to inhibit
operation of any overcurrent protection element - see section 2.2.
2.7.1
Polarisation
Phase-fault
Voltage polarisation is achieved for the phase-fault elements using the quadrature voltage whereby
each phase current is compared to the voltage between the other two phases, i.e.
I A ~ VBC
IB ~ VCA
IC ~ VAB
Two types of directional element exist, referred to here as type I and type II. On a relay with type I
directional elements the phase-fault characteristic angles can be user programmed to either +30° or
+45° using the Protection:P/F Charact Angle setting. On a relay with type II elements, any characteristic
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Section 2: Functional Description
angle between -90° and +90° can be selected. The characteristic angle setting should be matched to
the approximate expected nominal angle of system fault, i.e. the source impedance angle.
Earth-fault
Voltage polarisation is also used for earth fault elements, comparing the earth fault current Ie (3I0)
against the system residual voltage Vn (3V0).
In relays with type I directional elements the residual voltage is obtained from the open delta
connection of the tertiary windings of the line-N voltage transformers. The earth-fault characteristic
angles can be user programmed to 0°, -15°, -45° or -65° using the Protection:E/F Charact Angle setting.
In relays with type II directional elements an open delta tertiary winding can be used or alternatively
the relay will itself calculate the residual voltage internally from the three applied phase-earth voltages.
With these relays any characteristic angle between -90° and +90° can be selected. The characteristic
angle setting should be matched to the expected nominal angle of system fault.
Note that when type I directional Argus relays are used on 60Hz systems the nominal characteristic
angles will change slightly, typically P/F by less than +5° and E/F by less than -5°.
2.7.2
Two-out-of-three Gate
This feature is applicable to relays with three directional phase-fault poles. It provides the means of
achieving absolute discrimination, between two directional overcurrent protection relays, in power
system applications where +1 : -2 : +1 fault current distribution can occur.
When the Directional:2-Out-Of-3 Gate Logic setting is set to ON, the directional elements will only operate
for the majority direction, e.g. if phase A and C detect forward current flow and phase B detects
reverse current flow, phase A and C will operate forwards, while phase B will be inhibited.
2.7.3
Voltage Memory
In the condition of a 3 phase fault where the polarising voltage collapses the relay can maintain the
Forward or Reverse direction for each pole for up to 0.5 s. The Directional:Voltage Memory setting is used
to set the amount of time the relay will hold the memory of the direction.
2-Out-Of-3 Logic
P/F Charact Angle
Phase A forward
Event
Vbc
fwd
Ia
rev
Phase B forward
Event
Phase C forward
Dir'n Blk A FWD
2-out-of-3
logic
(fwd)
Dir'n Blk C FWD
Event
Vca
fwd
Ib
rev
Vab
fwd
Ic
rev
Dir'n Blk B FWD
Phase A reverse
Event
Phase B reverse
Event
Phase C reverse
Dir'n Blk A REV
2-out-of-3
logic
Dir'n Blk B REV
(rev)
Event
Dir'n Blk C REV
P300008 Protection Functions / Dir'n P/F
Figure 2-9 Functional Diagram – Phase-fault Directional Element
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E/F Charact Angle
Earth forward
Vn
Event
fwd
Dir'n Blk E/F FWD
Earth reverse
Ie
Event
rev
Dir'n Blk E/F REV
P300008 Protection Functions / Dir'n E/F
Figure 2-10 Functional Diagram – Earth-fault Directional Element
Table 2-17 Directional Settings
Sub-menu: Directional
Setting name
Range (bold = default)
Units
Notes
2-Out-Of-3 Gate Logic
OFF, ON
P/F Charact Angle
+30, +45
°
Type I element.
E/F Charact Angle
-90, -89…+45…+90
°
Type II element.
0, -15, -45, -65
°
Type I element.
-90, -89…-15…+90
°
Type II element.
SEF Charact Angle
0, -15, -45, -65
°
Type 1 only
Voltage Memory
OFF, 0.1 … 0.5
sec
Range (bold = default)
Units
Sub-menu: O/P Relay Config.
Setting name
Gn P/F FWD Block
Gn P/F REV Block
Gn E/F FWD Block
Gn E/F REV Block
Gn SEF FWD Block
Gn SEF REV Block
2.8
Notes
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _)
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _)
Argus 2 single-pole directional SEF
only.
VOLTAGE PROTECTION
Argus 2 (type II) models only
A single three-phase voltage element with definite time delay is provided. The Voltage:V Operation
setting allows the element to be set for overvoltage or undervoltage operation. When set to
undervoltage an additional blocking threshold (Voltage:V Block Threshold) prevents inadvertent operation
when the system is de-energised.
An instantaneous output is driven from the level detector (Voltage:V Ph-Ph Setting)/(Voltage:V Ph-N Setting),
with a follower definite time delay Voltage:V Delay driving the Voltage:V Trip output. These outputs can be
set by the Voltage:V O/P Phases setting to operate from any phase operation, or only when all phase
elements operate.
The Voltage:V Hysteresis setting specifies the percentage above or beneath the (Voltage:V Ph-Ph
Setting)/(Voltage:V Ph-N Setting), setting at which the element resets. For example, an element with
Voltage:V Operation set to Overvoltage, Voltage:V Setting of 100 V and Voltage:V Hysteresis of 1 % will nominally
operate above 100 V and reset below 99 V. If Voltage:V Operation is set to Undervoltage, the element will
operate below 100 V and reset above 101 V.
The voltage elements are set in terms of the directly measured voltage. If used for phase-phase
connection the voltage elements will be phase-phase; if used for phase-neutral connection the voltage
elements will be phase-neutral.
The voltage elements provide pole-by-pole outputs that can be used to block the appropriate
overcurrent element using the Status Config.:P/F xxxx Inhibit settings. Note that if used with phase-phase
connection of the voltage inputs, the Vab element will block the phase A overcurrent element, Vbc will
block phase B overcurrent and Vca will block phase C overcurrent.
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Section 2: Functional Description
V Operation
V Setting
V Hysteresis
c
V Inhibit
V starter
c
Event
V Starter
Va/Vab starter
Va / Vab
>
or
<
Vb / Vbc
>
or
<
Vc / Vca
>
or
<
Event
Vb/Vbc starter
Event
V O/P Phases
V Delay
≥1 or &
V Trip
Vc/Vca starter
Event
Event
V trip
Block P/F A
Block P/F B
Block P/F C
V Block Threshold
<
<
&
Voltage Block
Event
V Block Alarm
<
P300008 Protection Functions / V
Figure 2-11 Functional Diagram – Undervoltage/Overvoltage Element
Table 2-18 Voltage Protection Settings
Sub-menu: Voltage
Setting name
Range (bold = default)
Units
Notes
Gn V Operation
OFF, O/V, U/V
Gn V Setting (Ph-N)
Gn V Setting (Ph-Ph)
5.0, 5.5…80.0…200.0
V
Setting indicates whether phasephase or phase-neutral is in use – set
by System Config.:VT Connection
Gn V Delay
0.00, 0.01…20,20.5…
100.0,101.0…600.0
sec
Gn V Hysteresis
1,2…90
%
Gn V Block Threshold
OFF,1,2…5…100
V
Gn V O/P Phases
Any One, All
Sub-menu: O/P Relay Config.
Setting name
Range (bold = default)
Gn V Starter
Gn V Trip
Gn V Block Alarm
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _)
Units
Notes
Units
Notes
Sub-menu: Status Config.
2.9
Setting name
Range (bold = default)
Gn V Inhibit
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
AUTO-RECLOSE
Argus 4 and Argus 6 only.
Approximately 90% of all overhead line faults are transient (non–damage) arcing Phase(s) to Earth
faults induced by lightning or due to other transient initiation. Use of a sequence of Instantaneous
(Lowset) trips followed by Delayed trips e.g. 2I + 1D with line Dead-Times (Reclose Delays) ensures
that such transient faults are cleared quickly before consequential permanent damage to the plant can
occur and hence, after the line has been dead for a short time (1 – 5 s) to allow arc by-products and
ionised air to disperse, the healthy line can be reclosed and the system restored. The Delay trips
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ensure that, if the instantaneous trips do not clear the fault i.e. it is permanent, grading of the
protections in series on the system occurs and the protection closest to the fault will trip and isolate
the fault.
2.9.1
Auto Reclose Sequences
The AUTO RECLOSE MENU enables the user to programme independent auto-reclose sequences for
phase-fault, earth-fault, sensitive earth-fault, and/or auto-reclose initiation from an external protection
trip via a status input mapped to STATUS CONFIG:ARC Status A (SA). For each sequence the user can
select the optimum sequence settings i.e. each trip can be selected to be either INSTantaneous or
DELAYed with different Dead Times before Reclosure for each shot. The User can set the required
Sequence and number of Instantaneous trips and Delayed trips to LockOut, the number of shots
(Recloses) to LockOut, the number of High Set 1 Instantaneous trips to LockOut and the number of
High Set 2 trips to LockOut, allowed to achieve maximum retention/availability of the power system.
After each trip the relay determines its next course of action using the User settings. The correct Auto–
Reclose delay and Protection Characteristic response is applied after each trip in response to the type
of fault cleared, thus the correct sequence is applied at each stage of a developing fault.
Note:- in the AUTO RECLOSE:P/F Protection Trip: settings, INST refers to Instantaneous LowSet and not to
instantaneous HighSet. Also all protection elements operate in parallel, therefore, the first noninhibited element, that is mapped to trip, to time out will generate a trip output. The Delay and HighSet
elements 1 & 2 can be used together to provide a composite characteristic with IDMTL/DTL operation
at low fault levels and higher speed operation at higher fault levels to grade with fuses etc.
Sequence Co-ordination of the Instantaneous (Lowset) and Delayed protection operation of two relays
in series on a feeder is automatically provided if the upstream Lowset Instantaneous has a grading
delay set. Grading between both relays’ Lowsets will be maintained and both upstream and
downstream protections will keep their shot counters in-step throughout a sequence; the upstream
protection will apply the same sequence of INST/DELAY protection, grading with the downstream CB on
each shot and not tripping, thus the downstream CB performs all the necessary trips to clear the fault.
To monitor the Circuit Breaker position the relay uses two Status inputs, mapped to the STATUS
CONFIG:CB Open and STATUS CONFIG:CB Closed settings, and Fault current monitoring to determine if the
circuit breaker is open or closed. If the CB is closed, or its state indeterminate due to interlock failure
producing conflicting inputs, a reclose Close pulse output will be inhibited, but a Manual Close & Reclaim
or Remote Close & Reclaim Close pulse output is always allowed.
The AUTO-RECLOSE:P/F ARC, AUTO-RECLOSE:E/F ARC, AUTO-RECLOSE:SEF ARC and AUTO-RECLOSE:SA
ARC - IN/OUT settings enable auto-reclose to be independently selected ON or OFF for each fault type.
When ARC is set to IN (On) i.e. switched into service, each setting can be overridden to OUT (Off) via a
raised mapped status input STATUS CONFIG:P/F ARC Off etc., or by being set to Off via the
communications link commands. Overall All ARC On/Off may also be set via the Relay’s Linesman
Mode:ARC ON/OFF setting (see section 2.14.2) or via a communications link AutoReclose OFF command.
At significant stage points during an auto reclose sequence the relay logs and sends named events
via the communications link, with raised or cleared status as applicable. These named events greatly
assist the user in the process of determining the timing and exact sequence of events and the relay’s
response to system fault conditions. The relay also indicates the status and progress of the auto
reclose sequence via its ARC Status and ARC Inhibits Instruments.
2.9.1.1 Protection and Auto Reclose Sequences
The following clauses describe the functionality of each setting in the Auto Reclose Menu for the
Phase Fault sequence. Identical settings and comments apply to the Earth Fault, Sensitive Earth
Fault, and External Arc Start via Status ARC start (SA) sequences. Each Settings Group G1, G2…G8
can have different Auto Reclose sequence settings, or none, applied by the User.
Gn Line Check Trip = ON/OFF
The Auto-reclose:Line Check Trip setting allows this function to be enabled (ON) or dis-enabled (OFF) and
is applied to all Groups (G1 to G8) and all Sequences i.e. P/F, E/F, SEF & SA.
With Auto-reclose:Line Check Trip = ON, if the circuit breaker is closed via a Close pulse from the relay in
response to a raised ‘Local Close & Reclaim’ or a ‘Remote Close & Reclaim’ command raised via a mapped
status input, or communications command, or from the Linesman menu Linesman Mode:Close & Reclaim
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Section 2: Functional Description
(section 2.14.2); then the Line Check Trip (switch on to fault) function is activated and remains
activated until the Reclaim Timer resets.
The Line Check function ensures that if the circuit breaker is closed onto a permanent fault, or if the
circuit breaker closes onto a healthy line but a fault then develops within the Auto-reclose:Reclaim Time
setting, that the relay will perform only one trip to Lockout, The relay will trip but it will not reclose nor
go through an auto reclose sequence.
The protection applied for Line Check Trip can be set independently for P/F, E/F, SEF/REF and/or SA,
to either INST (Instantaneous Lowset) or to DELAYED (Delayed + HS1 + HS2), by the relevant Autoreclose:Line CheckTrip settings.
An example of this setting’s use is that after a lockout state is reached the user can set Line Check
Trip to OFF so that when the Circuit Breaker is then manually closed onto a permanent fault the relay is
forced to go through an auto reclosing sequence to ensure that sectionalising/grading occurs to isolate
a permanently faulted section of the system. After successful isolation Auto-reclose:Line Check Trip should
be set back to ON.
P/F ARC = IN/OUT
Auto-reclose:P/F ARC setting,
If set to IN (on) the relay will perform a full Phase Fault AutoReclose sequence,
If set to OUT (off) the relay will perform a one Trip to Lockout sequence applying the first
programmed protection trip characteristic unless this is overridden by any applied inhibit controls.
The first protection trip characteristic in a sequence will typically be set to INST i.e. Instantaneous
Lowset, therefore, if P/F ARC is set to OUT (off) the relay will not grade with other Protections in the
system to isolate a permanent fault. However, the relay can be re-configured to perform one delayed
Trip to Lockout by raising P/F Lowset Inhib., preventing the Instantaneous Lowset from operating, thus
allowing the IDMT Characteristic etc. to grade.
P/F Lowset can be Inhibited by a raised status input mapped in Status Config.:P/F Lowset Inhib., or P/F INST
ON/OFF can be set via the communications link commands. All Inst. Lowset ON/OFF may also be set via
the relay’s Linesman Mode:Inst. Lowset ON/OFF setting (see section 2.15) or via a communications link P/F
Instantaneous ON/OFF command.
Protection Trips 1 to 4
The Protection characteristic applied for each of the first four trips in a sequence can be user set to
INST Instantaneous (LowSet) or composite delayed + HighSet1 + HighSet2 characteristic, as specified
by the Auto-reclose P/F Protection Trip 1 (2)(3)(4) settings. Any combination of inst (I) & Delayed (D) trips is
allowed e.g. 2I + 2D, or I+D+I+D, or 2D + 2I etc.. However, the fifth trip in any sequence, if allowed by
the user, will always apply the composite delayed + HS1 + HS2 characteristic to attempt to retain as
much of the system in service as possible.
The two highset elements can be applied as trip elements with the delayed characteristic to provide a
composite characteristic, or used as independent elements. The Auto-reclose:P/F HS1 Trips To Lockout
and Auto-reclose:P/F HS2 Trips To Lockout settings may be set to limit the number of high current trips, or,
if set to 1 to truncate a P/F sequence to Lockout if the HS1 or HS2 fault level setting is exceeded.
Reclose Delay (Dead time) and Close Routine
The Reclose delay or line Dead Time, is basically the length of time the Circuit Breaker is open before
being reclosed. An auto reclose sequence may have more than one Reclose delay.
After the first and subsequent trips, when the Circuit Breaker has opened and all starters and External
ARC Start SA are cleared, the relay checks the reason for that Trip and determines its next state.
If the relay determines that it is not to go to Lockout but is to proceed to perform the next set step in
the Auto-Reclose sequence, the relay applies the Reclose Delay (dead time) specified by the Autoreclose:P/F Reclose DTL [1] [2] [3] [4] settings, the Auto Reclose sequence commences and an ‘Arc Active’
event and alarm is raised, this may be mapped by the user to an output relay as defined by the O/P
Relay Config.:ARC Active setting. The output remains raised until the sequence has successfully
reclaimed, or a lockout occurs, at which time the ‘Arc Active’ event and alarm output is cleared.
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After the Reclose Delay the relay enters the Reclose routine and checks that Reclose Block is not
raised before issuing a close pulse via the output relay output contacts specified by the O/P Relay Config
.:Close Pulse setting. Note: If any ARC INHIBIT is raised before or at any time during a Reclose Delay
or during the Reclose Block time the relay will go to Lockout.
A raised status input mapped to Status Config.:Reclose Block can be used to prevent autoreclosing if
external conditions do not allow an immediate close of the circuit breaker e.g. if a motor wound circuit
breaker close spring needs additional time to recharge or if the system is out of synchronism, etc.
External blocking contacts can be wired in parallel. If all the reclose block inputs are not cleared within
the 5 second reclose-block time delay the relay will go to Lockout. If all the reclose block inputs are
cleared at any time within the 5 secs reclose-block time delay then the close pulse will be issued, thus
the autoreclose close pulse may be held back by up to 5 secs after the end of the reclose delay.
The Close Pulse duration is set using the Auto-reclose:Close Pulse setting. The close pulse will be
truncated either when the Status Config.:CB Open and Status Config.:CB Closed status inputs show that the
CB has closed, or if the CB closes onto a fault and any protection starter picks up. Thus the close
pulse may be left set to the default of 2 seconds without racing conflicts being created. The relay will
not issue a Close pulse to a closed CB.
The relay also provides an Auxiliary Close output that can be mapped to an output relay by O/P Relay
Config.:AUX Close) which will be energised for 200 ms before the end of the close pulse. This output can
be used to energise an external relay with a heavy duty break contact, connected in series with the
close coil of the CB, to prevent output contact damage for a stuck circuit breaker condition. It can
replace the anti-pumping timer.
If at the end of the close pulse the circuit breaker has not closed, then the relay will raise a CB FAIL
alarm then Lockout (section 2.5.2). If at the end of the close pulse, the circuit breaker has successfully
closed then the relay will start the Reclaim Delay timer.
Reclaim
After the Circuit Breaker has been successfully reclosed the relay goes into the Reclaim state for the
duration of the Reclaim delay, set by the Auto-reclose:Reclaim Time setting.
If within the Reclaim Delay a new fault occurs and a protection starter picks up, or if an external Arc
Start SA input is raised, then the relay will continue the existing Protection/Auto reclose sequence as
programmed.
If within the final Reclaim Delay a new fault occurs and a protection starter picks up, or if an external
Arc Start SA input is raised, then the relay will apply the programmed last shot Protection
characteristic, if any protection element operates a trip output will be issued then the relay will go to
Lockout.
If the Reclaim Delay times out without another fault occurring then the relay will Reclaim i.e. reset, the
sequence shot counter will be reset to zero and any subsequent fault will start a full new sequence.
At the start of a Reclaim Delay a ‘Reclaim raised’ event is generated. At the end of a successful
Reclaim Delay a ‘Reclaimed cleared’ event is issued and an output is raised, this may be mapped by
the user to any output relay using the O/P Relay Config.:Reclaimed setting.
Lockout
Lockout is a state where the relay truncates the current sequence or operation and resets leaving the
Circuit Breaker Open and no further action is taken. The relay goes to the Lockout state when it
reaches the last trip of a sequence without being able to clear a permanent fault or if conditions are
such that a sequence or operation is truncated without completion. It is not necessary to reset the
relay’s Lockout state to be able to close the circuit breaker.
The number of Reclose attempts in any sequence before the relay locks out can be set by the User by
the Auto-reclose: P/F Shots To Lockout: setting. A sequence of up to four Close shots (five Trips) to
Lockout may be set by the User. When Lockout is reached a Lockout event is issued and an output is
raised as defined by the O/P Relay Config.:Lockout Alarm setting.
The Auto-reclose:LO Recovery delay inhibits all Close & Reclaim commands, from a status input or
communications command, for a set time delay after lockout. The delay can be user selected to OFF,
or to a set time delay. If set the delay prevents an operator from repeatedly quickly closing onto a
permanent fault, allowing the Plant to cool between closes preventing overheating / overstressing.
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Section 2: Functional Description
Table 2-19 Auto-reclose from Internal Elements - Settings
Sub-menu: Auto-reclose
Setting name
Gn Line Check Trip
Range (bold = default)
Units
Notes
ON, OFF
Common setting, applies to all
Sequences in that group
Gn Seq Edit/View
‘ALL’ ,
’P/F Sequence’ ,
’E/F Sequence’ ,
’SEF/REF Sequence’ ,
’SA Sequence’
The settings below relating to P/F are
repeated for E/F and SEF. This
setting allows the user to display a
subset of them only. Default depends
on relay type. ‘ALL’ shows all settings
Gn P/F [E/F][SEF] ARC
IN, OUT
Gn P/F [E/F][SEF] Line Check Trip
INST, DELAYED
Gn P/F [E/F][SEF] Protection Trip 1
INST, DELAYED
Gn P/F [E/F][SEF] Reclose DTL 1
0.20, 0.21…2.0, 2.1…3.0…20,21…
300, 360…3600, 3900…14400
Gn P/F [E/F][SEF] Protection Trip 2
INST, DELAYED
Gn P/F [E/F][SEF] Reclose DTL 2
as Reclose DTL 1
Gn P/F [E/F][SEF] Protection Trip 3
INST, DELAYED
Gn P/F [E/F][SEF] Reclose DTL 3
as Reclose DTL 1
Gn P/F [E/F][SEF] Protection Trip 4
INST, DELAYED
Gn P/F [E/F][SEF] Reclose DTL 4
as Reclose DTL 1
Gn P/F [E/F][SEF] Shots To
Lockout
1, 2, 3, 4
Gn P/F [E/F] HS1 Trips to Lockout
1, 2, 3, 4, 5
Gn P/F [E/F] HS2 Trips to Lockout
1, 2, 3, 4, 5
Reclaim Time
sec
sec
These settings are for phase-fault
elements; earth-fault (and where
appropriate SEF) protection, have
duplicate sets
e.g. ‘Gn P/F ARC’ becomes ‘Gn E/F
ARC’ or ‘Gn SEF ARC’.
sec
sec
For 4 reclose shots, 5 trips are issued
– the fifth trip is always delayed.
Not applicable to SEF sequence
0.20, 0.21…2.0, 2.1…20,21…
300, 360…3600, 3900…14400
sec
Common setting across all Groups
applies to all Sequences
Close Pulse
1.0, 1.1…2.0…10.0
sec
Common setting across all Groups
Manual Close Delay
OFF, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
sec
Common setting across all Groups
LO Recovery
as ‘Reclaim Time’
sec
Common setting across all Groups
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Sub-menu: O/P Relay Config.
Setting name
Range (bold = default)
Notes
Gn Lockout Alarm
_ or 1 for each output contact
(default: _ _ _ _ _ _ 1)
Default output = relay 7
Gn Close Pulse
_ or 1 for each output contact
(default: _ _ _ 1 _ _ _)
Default output = relay 4
_ or 1 for each output contact
(default: _ _ _ _ _ _ _)
Default output = None
Setting name
Range (bold = default)
Notes
Gn CB Open
_ or 1 for each status input
(default: _ _ _ _ _ 1 _ _ _)
Default input = 6
Gn CB Closed
_ or 1 for each status input
(default: _ _ _ _ _ _ 1 _ _)
Default input = 7
_ or 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Default input = None
Gn AUX Close
Gn ARC Active
Gn Reclaimed
Sub-menu: Status Config.
Gn Reclose Block
Gn P/F ARC Off
Gn E/F ARC Off
Gn SEF/REF ARC Off
2.9.1.2 External Protection Reclose Sequence
In addition to the relay’s internal protection and auto-reclose sequences a programmable auto-reclose
sequence and back-up protection functions for an external protection is provided.
The external protection trip is sensed on a status input, as set in the Status Config.:ARC Status A setting.
This will typically be energised from the trip output, or starter output, of an external protection device
e.g. a distance protection or sensitive earth-fault relay. The Argus 4/6 will then provide a separate
auto-reclose sequence, with the external protection providing the fault detection and tripping functions.
Up to four close shots (five trips) to lockout may be set with independent reclose delays.
The Auto-reclose:SA Trips to Block setting causes an output to be raised after a set number of trips in a
sequence as set in the O/P Relay Config.:SA Blocked setting. This is intended to allow blocking of the
external protection. For example, the Argus can provide the auto-reclose sequences and back-up
IDMT protection to a distance protection. The distance relay could be allowed to trip twice, it can then
be blocked and the IDMT protection of the Argus allowed to grade with other inverse protection relays
to clear the fault.
Back-up protection is also provided by timers, as set by the O/P Relay Config.:Backup Alarm SA and O/P
Relay Config.:Backup Trip SA settings, which run consecutively. When ARC Status A is raised, the Backup
Alarm timer starts running, on time-out a SA Alarm is given and the Backup Trip timer then starts
running, on its time-out the relay gives a SA Trip output. Both timers stop & reset when ARC Status A is
cleared. This two stage back-up protection, therefore, has the external protection settings, e.g.
Impedance or SEF levels. The timers provide a protection trip when the SA sequence has progressed
to the point at which the external protection is blocked and the fault level falls below the overcurrent
protection settings. For example; a five pole protection scheme can be engineered, with a 3P + E
Argus 4 relay and a separate SEF relay, where the P/F, E/F, and SEF protection each have
independent auto-reclose sequences.
Outputs from the alarm and trip are set using the O/P Relay Config.:SA Alarm and O/P Relay Config.:SA Trip
settings.
All other settings relating to this function are as for the internal sequences described above, with the
exception of line check trip. When the Auto-reclose:SA Line Check Trip setting is set to Delayed, the delay
used is that given by the two stage back-up alarm and back-up trip times.
Table 2-20 Auto-reclose from External Trip Settings
Sub-menu: Protection
Setting name
Range (bold = default)
Units
Gn Backup Alarm SA
0.00, 0.01…10.00…20.00
sec
Gn Backup Trip SA
0.00, 0.01…10.00…20.00
sec
Notes
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Section 2: Functional Description
Sub-menu: Auto-reclose
Setting name
Gn SA ARC
Range (bold = default)
Units
Notes
If set to OUT and an SA input occurs
then the relay will go to LOCKOUT.
IN, OUT
Gn SA Line Check Trip
INST, DELAYED
Gn SA Reclose DTL 1
Gn SA Reclose DTL 2
Gn SA Reclose DTL 3
Gn SA Reclose DTL 4
Gn SA Shots To Lockout
0.20, 0.21…2.00, 2.1, 2.2…3.0…20.0,
sec
21, 22…300, 360, 420…3600,
3900, 4200…14400
Gn SA Trips To Block
1, 2, 3, 4, 5
1, 2, 3, 4
Sub-menu: O/P Relay Config.
Setting name
Range (bold = default)
Gn SA Blocked
Gn SA Alarm
Gn SA Trip
_ or 1 for each output contact
(default: _ _ _ _ _ _ _)
Default output = None
_ or 1 for each output contact
(default: _ 1 _ _ _ _ _)
Default output = relay 2
Notes
Sub-menu: Status Config.
2.9.2
Setting name
Range (bold = default)
Gn ARC Status A
_ or 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Notes
Default input = None
Control Inputs
The user enters the protection settings and auto-reclose sequence settings into the relay to set-up the
required sequence for the different fault types, however, the operation of these functions may be
modified or controlled by the programming inputs. These inputs may be via status inputs from external
scheme logic and include blocking and CB Status inputs, or SCADA Control commands from the
remote operator via the Communications link, or local commands via the Linesman Mode menu.
The Argus 2 and Argus 6 provide the following command set:
Trip and Lockout
When this command is raised (edge triggered) any existing auto-reclose sequence is aborted, a
defined trip pulse is issued and the relay then goes to lockout.
Local Close and Reclaim
It is desirable that an Engineer should not be standing close to a Circuit Breaker when it is being
closed, it could close onto a fault which could cause it to fail. This function inserts a Health and Safety
time delay between the initiation by the operator of a Local Close & Reclaim command to the relay
and the relay sending an output to the CLOSE circuit of the Circuit Breaker.
When a ‘Local Close & Reclaim’ command input (edge triggered) is raised the relay executes a
‘CLOSE IN XX s’ countdown timer before issuing the CLOSE pulse. The delay is set by the User in the
Auto-reclose:Manual Close Delay setting, default OFF, to define the delay between the Command initiation
being received by the relay and the CLOSE pulse being issued by the relay, thus allowing time for the
operator to move away from the vicinity of the Circuit Breaker before it operates to close and make the
circuit live.
When the CB is open and a CLOSE & RECLAIM command is raised, the relay jumps to the ‘ARC
Status’ screen in which is displayed the count down timer ‘CLOSE IN xx s’ where the time ‘xx s’ is
counted down from the User set Manual Close Delay value. On reaching the count of zero the CLOSE
pulse is issued and the screen then shows the RECLAIM timer counting down after which ‘RECLOSE
SUCCESS’ is displayed. Note:- the Manual Close delay starts when the mapped Status input is
raised, clearing it and raising it again restarts the timer each time.
Application Note:- This function allows the normal panel mounted Circuit Breaker Control switch to
initiate, via the relay, the delayed closing of the Circuit breaker thus removing complexity from the
implementation of this Health and Safety feature.
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If the CB is open the relay enables line check, then issues a defined close pulse and enters the
reclaim delay. If the CB closes onto a fault, or a fault occurs during the reclaim delay time, then the
relay performs the programmed one trip to lockout.
The relay will not issue a close pulse to a circuit breaker that is indicating that it is closed, i.e. the
double command status inputs CB Open is cleared and CB Closed is raised. If a Don’t Believe It (DBI)
condition exists, e.g. CB Open and CB Closed are both raised then the relay will issue the close pulse.
Remote Close and Reclaim
When this command is raised (edge triggered) if the CB is open the relay enables line check, then
immediately issues a defined close pulse and enters the reclaim delay. There is no delay, as for Local
Close & Reclaim, since there are tight ‘Time allowed to live’ limits on SCADA commands.
If the CB closes onto a fault, or a fault occurs during the reclaim delay time, then the relay performs
the programmed one trip to lockout.
The relay will not issue a close pulse to a circuit breaker that is indicating that it is closed, i.e. the
double command status inputs CB Open is cleared and CB Closed is raised. If a Don’t Believe It (DBI)
condition exists, e.g. CB Open and CB Closed are both raised the relay will issue the close pulse.
Trip and Auto-reclose
When this command is raised (edge triggered) the relay immediately issues a trip pulse then, after the
first phase-fault reclose delay, it enables line check then issues a close pulse to reclose the circuit
breaker and enters reclaim. If the CB closes onto a fault, or a fault develops during reclaim, then the
relay will perform the line check one trip to lockout. This command is typically used for a routine test of
the Trip and Close operations of the Circuit Breaker.
Close and Lock-in
When this command is raised (edge triggered) if the CB is open the relay immediately issues a
defined close pulse and then inhibits all Protection and Autoreclose functions. This allows the circuit
breaker to be operated as a switch without protection trip functions.
Table 2-21 Auto-reclose Commands Settings
Sub-menu: Auto-reclose
Setting name
Range (bold = default)
Units
Manual Close Delay
OFF, 1, 2…10
sec
Units
Notes
Sub-menu: Status Config.
2.9.3
Setting name
Range (bold = default)
Gn Trip & ARC
Gn Close & Lockin
Gn Trip & Lockout
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Gn Local Close & Reclaim
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ 1)
Gn Remote Close Reclaim
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Notes
_, 1 for each status input
(default: _ _ _ _ _ _ _ 1 _)
Frequent Operations Counter
Argus 4 & 6 relays incorporate a Frequent Operations Counter (FOC) which operates to prevent
cyclical operations caused by multiple fault re-occurrences or by setting interactions between
AutoReclosers at different points in the system in response to a permanent fault. While the FOC is
exceeded it will act to truncate and modify a sequence to break the cyclical operation. The FOC also
acts to limit the number of Circuit Breaker operations per hour to the value set by the User.
For further details see section 2.14.1.4.
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2.9.4
Section 2: Functional Description
Hot (Live) Line Working
When maintenance is being performed on an overhead line, or new equipment is being added, it can
be inconvenient or impractical to make the line dead. Live line working can be performed using special
tools and equipment. When live line working is being performed all auto-reclose sequences should be
inhibited and any fault must force an instantaneous Trip to Lockout.
The hot line working mode is enabled from a status input (as defined by the Status Config.:Hot Line
Working setting), from the relay’s Linesman Mode (section2.15), or via the IEC communications link. For
hot line working to be disabled none of these inputs can be on.
In the hot line working mode, if fault current above any starter setting is seen, the relay will give a
single instantaneous trip and lockout overriding all protection/auto-reclose settings and inhibits.
Table 2-22 Live Line Working Setting
Sub-menu: Status Config.
2.10
Setting name
Range (bold = default)
Gn Hot Line Working
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Units
Notes
TRIP CIRCUIT SUPERVISION
One, or more, trip circuits can be monitored by connecting a status input in each trip circuit to be
supervised, e.g. as shown in the application diagram
Figure 3-8 & 3-9 The inputs are specified with the Status Config.:Trip Circuit Fail setting.
If all mapped status inputs are energised (raised) then the trip circuits are considered healthy. If any
trip circuit loses auxiliary supply, or becomes high resistance or open-circuit, then the wired status
input will be de-energised (cleared) and a trip circuit fail alarm and indication raised.
Local indication will be in the form of a message on the LCD, e.g. ‘Trip Circuit FAIL S1+3’ if the trip
circuits associated with status inputs 1 and 3 have failed.
By mapping each trip circuit fail status input to a changeover contact an alarm output can also be
generated from the normally-closed contact. A suitable pick-up delay should be set on the status input.
More details about the application of trip circuit supervision are given in the Application Notes Section 3.8.
Table 2-23 Trip Circuit Supervision Settings
Sub-menu: Status Config.
2.11
Setting name
Range (bold = default)
Gn Trip Circuit Fail
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Units
Notes
STATUS INPUTS AND RELAY OUTPUTS
The status inputs and relay outputs are all user-programmable. The settings related to each function
are described in the relevant section of this document. The relevant Diagrams and Parameters
document for each Argus series provides matrix diagrams that allow user mappings of the status
inputs and output relays to be recorded.
It is possible to map status inputs to directly operate relay outputs, using the O/P Relay Config.:Status n
settings.
The operation of the status inputs and output relays is described below and shown in Figure 2-12 and
Figure 2-13 respectively.
Hand Reset Output Relays
Relay outputs are self-resetting by default; however, each relay output can be individually set to hand
reset. In this case, the relay latches on operation and can be released by using the TEST/RESET key
on the relay fascia (from the Identifier screen), by the communications link, or by energising a status
input - as mapped by O/P Relay Config.:Reset Flags & Outputs.
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Pulsed Output Relays
Argus 4 and Argus 6 only.
Output relays can be set as pulsed by the O/P Relay Config.:Pulsed Relays setting. Rather than remaining
energised for the period that any mapped output signal is activated, a pulsed output relay will be
energised for the minimum energise time, see Table 2-24, and will then be de-energised. It will remain
de-energised until the output signal is deactivated and reactivated, whereupon another pulsed output
will occur.
Output Relay Minimum Energise Time
All relay outputs can have their minimum energise time set by the O/P Relay Config.:Min O/P Energise Time.
Status Input Inversion and Delays
Each status input can be set to inverted action i.e. the internal signal is raised when the input is deenergised and cleared when energised, using the Status Config.:Inverted Inputs setting.
Each status input can also be programmed with a pick-up and drop-off delay, using the Status
Config.:Status n P/U Delay and Status Config.:Status n D/O Delay settings. The pick-up and drop-off delays are
applied following the inversion, i.e. pick-up delay applies to the input becoming active, while drop-off
applies to it becoming inactive.
Inverted Inputs
Status 1 P/U Delay
Status 1 D/O Delay
Status 1 inverted
&
Latched Inputs
Status 1 latched
S
R
Q
≥1
=1
Status 1
Event
Status 1
Input Matrix
(Or gates)
&
Status n P/U Delay
Status n D/O Delay
Status n inverted
=1
Status n latched
S
R
Q
≥1
Status n
Event
Status n
Reset Flags & Outputs
Logic signals,
e.g. 'P/F Charact. Inhibit'
P300008 Protection Functions / Input
Figure 2-12 Status Input Logic
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Section 2: Functional Description
Logic signals,
e.g. 'P/F Charact.'
Reset Flags & Outputs
Pulsed Relays
≥1
Relay 1 pulsed
Hand Reset
Relay 1
Event
S
R
Q
Relay n
Event
≥1
Min O/P Energise Time
Output Matrix
Q
&
&
Relay 1 hand reset
S
R
&
≥1
(Or gates)
≥1
Relay n pulsed
&
&
Relay n hand reset
≥1
&
≥1
P300008 Protection Functions / Input
Figure 2-13 Output Relay Logic
Table 2-24 General Output Relay and Status Input Settings
Sub-menu: O/P Relay Config.
Setting name
Gn Status 1
Gn Status 2
…
Gn Status n
Gn Hand Reset
Range (bold = default)
Units
n is the number of status inputs
present
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _)
Gn Pulsed Relays
Min O/P Enegerise Time
Notes
Argus 4 and Argus 6 only.
100, 150…500
ms
Setting name
Range (bold = default)
Units
Inverted Inputs
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Sub-menu: Status Config.
Latched inputs
Gn Status 1 P/U Delay
Gn Status 1 D/O Delay
Gn Status 2 P/U Delay
Gn Status 2 D/O Delay
…
Gn Status n P/U Delay
Gn Status n D/O Delay
Gn Reset Flag & Outputs
2.12
0.00, 0.01, 0.02…2.0, 2.1…20, 21…
300, 360…3600, 3900…14400d
Notes
Argus 4 and Argus 6 only.
sec
Default settings of 0.02 for pick-up
and 0.01 for drop-off are applied to
give AC rejection.
n is the number of status inputs
present.
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
COMMUNICATIONS
All settings and information relating to communications with the Argus, are given in Section 4:
Communication Interface.
2.13
DATA STORAGE
Argus relays store three types of data to assist the user in fault evaluation i.e. events, waveforms and
faults.
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2.13.1 Event Storage
When an event occurs a date and time tagged entry is added to the storage buffer. Some of the
events that can be stored are indicated in the function diagrams throughout this functional description
section. Up to 500 events are stored in a rolling buffer, with the oldest events overwritten. The buffer
can be cleared using the Data Storage:Clear All Events setting.
All events can be obtained through the communications link and are displayed in the ReyDisp
package in chronological order, allowing the user to see the sequence of events surrounding a trip.
They are also made available spontaneously to a compliant control system.
For a complete listing of events available in each model refer to the appropriate Diagrams and
Parameters document.
2.13.2 Fault Data Record
A Fault Data Record is a time-tagged textual record of the conditions at the instant of a Fault Trigger
e.g. Trip, Table 2-25 shows all possible entries in a fault record. Details are included of all operated or
operating protection elements, magnitudes and directions of currents in each pole at the time of trip.
A Fault Data record is triggered when any output relay, as designated in the Data Storage Gn Fault Trigger
setting, operates in combination with any protection element, or a status input mapped to a Fault
Trigger output relay is raised. To trigger a Fault Data record from an external protection device
connect its trip output to a status input which is mapped to a Data Storage:Gn Fault Trigger output relay.
Note. Unless an output relay is set=1 in the Data Storage:Fault Trigger setting then no fault data record
will be stored when a protection function assigned to that output relay operates.
Up to 5 faults are stored in a rolling buffer, with oldest faults overwritten. All Fault Data records can be
cleared if Data Storage:Clear All Faults is set to YES.
Table 2-25 List of Entries for Fault Data Records
Type
Fault Record Entry
Description
Date & Time
dd/mm/yy
hh:mm:ss.ssss
Time stamp
Group
Gn
Active setting group at time of trip, where n is the group number
Poles
PHASE A, PHASE B,
PHASE C, EARTH
FAULT, SEF, REF
Direction
Elements
Current
FWD (or user tag)
REV (or user tag)
Forward and reverse direction. User-defined text tags can be
programmed for each direction, e.g. LINE, BUS, FEEDER,
TRANSFORMER, etc.
LS
Lowset
DTL
Time-delayed characteristic (set to DTL)
IDMTL
Time-delayed characteristic (set to IDMTL)
HS1
Highset 1
HS2
Highset 2
TIMER 1
SEF/REF 1st time delay
TIMER 2
SEF/REF 2nd time delay
EXTERNAL TRIP
Trip generated externally and monitored through status input
CB FAIL 1
Circuit breaker fail re-trip
CB FAIL 1 + 2
Circuit breaker fail back-trip
<xx>
Element shown e.g. ‘< IDMTL >’ raised the fault trigger
IA=xxx
Current of phase A is xxx
IB=xxx
Current of phase B is xxx
IC=xxx
Current of phase C is xxx
IE=xxx
Current of earth-fault pole is xxx
ISE=xxx
Current of sensitive or restricted earth-fault pole is xxx
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Type
Voltage
Auto-reclose
General Alarms
Fault Record Entry
Section 2: Functional Description
Description
VA=xxx
Voltage of phase A is xxx
VB=xxx
Voltage of phase B is xxx
VC=xxx
Voltage of phase C is xxx
VN=xxx
Neutral displacement voltage is xxx
TRIP & RECLOSE
Autoreclose following trip
HOT LINE LOCKOUT
Recloser locked out following trip, due to hot line working active
TRIP & LOCKOUT
Recloser locked out following trip
LINE CHECK TRIP
Trip due to switch onto fault
SA TRIP
External trip
(user defined text tag)
A user-defined text tag can be programmed, e.g.’ BUCHHOLZ
TRIP ‘. Multiple Alarms are concatenated with ‘ + ‘ symbols
Example
‘12/05/04 17:25:51.2525 G1 PHASE A LS IDMTL <HS1> HS2 IA = 12.32xIn, PHASE B LS IDMTL HS1 HS2 IB = 12.23xIn,
PHASE C LS IC=0.78xIn, EARTH FAULT LS IDMTL IE=0.27xIn’, BUCHHOLZ TRIP
This specifies the date and time of the trip and that settings group 1 was active at the time of trip. On
phase A the lowset, delayed characteristic, and highsets 1 and 2 were picked up. Phase A highset 1
issued the trip/fault trigger. Phase A current was 12.32 xIn. On phase B the lowset, delayed
characteristic, highset 1 and highset 2 were picked up with a current of 12.23 xIn. On phase C the
lowset element was picked up with a current of 0.78 xIn. The earth-fault lowset and delayed
characteristic elements were picked up with a current of 0.27 xIn, and a General alarm ‘BUCHHOLZ
TRIP’ was raised. Basically a Phase A to B fault with some Earth fault component, Phase C unfaulted.
2.13.3 Waveform (Disturbance) Records
Waveform Record storage is a digital graphical record of analogue current (and for Argus 2 type II
voltage) inputs, status inputs and relay outputs.
Each record is one second in length and is triggered from a protection element operating or from a
status input as designated in the Data Storage:Waveform Trig setting. This allows the user to specify one
or more trigger methods: phase fault (P/F), earth-fault (E/F), SEF, Status input (STA) and/or Voltage
element operation. When status input trigger is selected, the inputs used are specified by the Status
Config.:Waveform Trig setting.
Note. Unless the correct settings are applied as described above then no waveform record may be
stored in the event of a fault.
When storage is triggered some pre-trigger waveform may be stored, the percentage of which is
specified by the Data Storage:Waveform Pre-Trigger setting. Suggested setting is 80% pre-trigger.
Up to 5 waveforms are stored in a rolling buffer, oldest waveforms are overwritten by new. The
waveform storage can be cleared if Data Storage:Clear All Waveforms is set to YES.
2.13.4 Maximum Demand Function
This feature enables the relay to perform an average and maximum demand function of the following
measured quantities:
IA
IB
IC
Watts – AG2-5* only
VArs – AG2-5* only
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There are two user configurations for this feature: The first is a rolling window which measures the average quantities over a rolling window of ‘n’
minutes. i.e. as new values are added old values are removed from the sum – the average is
calculated constantly.
The second method is a fixed window where the sum is reset at the start of the window and
incremented with new values until the end of the window period. Upon reaching the end of the window
the average is calculated and a new window started.
The average and maximum quantities are reported with new instruments, one for each quantity, i.e.
one screen would show:
IA MAX = 300.0
or
ROLL = 176.0
IA MAX = 300.0
FIXED = 176.0
The display depends upon the window type. The size of the window can be set by the user with the
Data Storage:Demand Window = xxxx minutes setting. The maximum quantities do not have any
relationship to the window and will report the maximum quantities since the last user reset of this
function. Resetting the quantities can be done either from the setting ‘Maximum Demand Reset’, the
instruments screen, or via an IEC60870 comms command.
Table 2-26 Data Storage Settings
Sub-menu: Status Config.
Setting name
Range (bold = default)
Gn Waveform Trig
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Units
Notes
The trigger must also be set to
STAtus in the Data Storage menu.
Sub-menu: Data Storage
Setting name
Range (bold = default)
Gn Fault Trigger
_, 1 for each output contact
(default: _ 1 _ _ _ _ _ _ _ _ _)
Gn Waveform Trig
_, 1 for each of P/F, E/F, SEF,
STAtus, V (default:_ _ _ _ _ all Off)
Gn Waveform Pre-Trigger
OFF, 10, 20…100
Clear All Waveforms
Clear All Events
Clear All Faults
Demand Window Type
Units
Notes
‘V’ applies only to Argus 2 type II.
%
NO, YES Self-resetting
Suggested setting 80%
Yes/No confirmation required
OFF, ROLLING, FIXED
Demand Window
5, 10, 15.. 60, 90 .. 300, 360 .. 1440
Maximum Demand Reset
NO, YES
mins
Self-resetting
Yes/No confirmation required
Sub-menu: CB Maintenance.
Setting name
Energy Meter Reset
2.14
Range (bold = default)
NO, YES
Self-resetting
Units
Notes
V’ applies only to Argus 2 type II.
Yes/No confirmation required
MAINTENANCE
This section covers features to assist in the maintenance of circuit breakers, the protection scheme
and the Argus relay itself.
2.14.1 Circuit Breaker Operations
Trip counts and I2 summation occur for each internal or external trip, as specified by Data Storage:Fault
Trigger, see section 2.13.2.
2.14.1.1 Trip Counter
A trip counter is provided which increments on each trip command issued.
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Section 2: Functional Description
A suitable maintenance limit value can be chosen from the circuit breaker manufacturer’s data and
entered into the CB Maintenance:Trip Counter Alarm setting. When the alarm setting is exceeded, the
output relays mapped by O/P Relay Config.:Trip Counter Alarm are raised.
The count can be reset using CB Maintenance:Trip Counter Reset, or when viewing the counter’s
instrument.
2.14.1.2 Sum of I2
Circuit breaker contact wear increases with energy broken, therefore I2 summation provides a good
estimation for maintenance purposes. A suitable maintenance limit value can be chosen from the
circuit breaker manufacturer’s data and entered into the CB Maintenance:ΣI2 Alarm setting
The current flowing at the time of trip is added to individual summations for each phase. If any of these
exceed the alarm setting, the output relays mapped by O/P Relay Config.:ΣI2 Alarm are raised. An
instrument shows the largest I2 summation of the three phases.
The summation can be reset using CB Maintenance:ΣI2 Reset, or when viewing the summation
instrument.
2.14.1.3 Delta Trip Counter
Argus 4 and Argus 6 only
This provides an additional counter, which can be reset independently of the Trip Counter described
above. This can then be used, for example, for recording trip operations between visits to a substation.
Its operation is similar to the Trip Counter above, however a different limit setting (CB Maintenance:∆ Trip
Counter Alarm ) and output (O/P Relay Config.:∆ Trip Alarm) are provided.
The delta trip counter can be reset using CB Maintenance:∆ Trip Counter Reset and when viewing the
counter’s instrument, also by a status input mapped by Status Config.:∆ Trip Counter Reset.
2.14.1.4 Frequent Operations Counter
Argus 4 and Argus 6 only
Argus 4 and 6 relays incorporate a Frequent Operations Counter (FOC) which logs the number of trip
operations in each minute-window in a rolling window of one hour. When the total number of trip
operations in one hour reaches or exceeds that set by the user in the CB Maintenance:Freq Op Counter
Alarm setting then all protection and auto-reclose settings are replaced by a Delay (+HS1+HS2 if
applicable) characteristic and one trip to lockout operation. The normally active protection and
sequence settings are suspended until the total number of operations decrements to below the
counter setting as the rolling one hour window drops off the high trip count minute-windows.
The standing number of FOC trips and the FOC Alarm level are displayed in the Instruments:Freq Op
Counter. The FOC counter can be reset using CB Maintenance:Freq Op Counter Reset, when viewing the
counter’s instrument, or by raising a status input mapped to Status Config.:FOC Reset.
Table 2-27 Circuit Breaker Maintenance Settings
Sub-menu: CB Maintenance
Setting name
Range (bold = default)
∆ Trip Counter Reset
NO, YES
∆ Trip Counter Alarm
OFF, 1, 2…999
Trip Counter Reset
NO, YES
Trip Counter Alarm.
Notes
Argus 4 and Argus 6 only.
OFF, 1, 2…999
Freq Op Counter Reset.
NO, YES
Freq Op Counter Alarm
OFF, 1, 2…999
ΣI² Reset
NO, YES
ΣI² Alarm
OFF, 10, 11…100, 110…
20000, 21000…100000
Page 54 of 75
Units
Argus 4 and Argus 6 only.
MA
2
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Sub-menu: O/P Relay Config.
Setting name
Range (bold = default)
Units
Gn ∆Trip Alarm
Gn Counter Alarm
Gn ΣI² Alarm
Notes
Argus 4 and Argus 6 only.
_, 1 for each output contact
(default: _ _ _ _ _ _ _ _ _ _ _)
Gn FOC Alarm
Argus 4 and Argus 6 only.
Sub-menu: Status Config.
Setting name
Range (bold = default)
Units
Gn ∆Trip Counter Reset
Gn Counter Reset
Gn FOC Reset
Notes
Argus 4 and Argus 6 only.
_, 1 for each status input
(default: _ _ _ _ _ _ _ _ _)
Argus 4 and Argus 6 only.
Gn ΣI Update
2
2.14.2 Output Relay Test
The output relay test allows the Argus to simulate a particular element operation, e.g. P/F Highset 1,
and energise all output contacts that would normally be energised from that element output. This is
useful during commissioning/routine tests, so that wiring and operational checks can be performed
without the need for secondary injection.
The required element is selected from the list available in the CB Maintenance:O/P Relay Test setting.
Scroll to that setting, press ENTER, select the required element name using the up or down keys,
press ENTER to select, a confirmation screen ‘ ** O/P Test ** Are You Sure ? N ‘ will be shown,
confirm by using the up or down key to change to ‘ Y ‘ and press ENTER. An active countdown timer
will then be shown in a ‘ ** TRIP TEST IN** , ** xx SECONDS ** ‘ screen. The counter decrements
from 10 seconds to zero, then all output relays mapped to that element are energised for 100ms, then
a message TRIP TEST FINISHED is briefly displayed.
The time delay before output relay energisation allows personnel to leave the vicinity of the circuit
breaker before a live system trip test is performed.
Table 2-28 Output Relay Test Setting
Sub-menu: CB Maintenance
Setting name
Range (bold = default)
O/P Relay Test
OFF, Protection Healthy,
Units
Notes
all P/F, E/F, SEF overcurrent element outputs
all voltage elements,
all mapped status, Alarms, counters, hand &
pulsed relays, Lockout alarm, Close pulse,
Aux Close, ARC active, Reclaimed, SA
Blocked, SA Alarm, SA Trip,
YES / NO confirmation is required.
2.14.3 Internal Supervision
The Argus relay applies comprehensive supervision of its internal operation, both hardware and
software. In the event of any failure all outputs are de-energised and the relay is shut down in a
controlled manner. Supervision includes a power supply watchdog, code execution watchdog, memory
checks by checksum, memory addressing checks and processor and ADC health checks.
While the relay is healthy an output can be given as specified by the Output Relay:Prot. Healthy, setting.
By allocating this output to a normally closed contact, i.e. any output relays 1 to 3, an alarm can be
generated by relay de-energisation or Protection Healthy failure. Note: relay withdrawal will also
generate an alarm as all normally closed contacts have ‘CT’ shorting contacts which close when the
relay is withdrawn from its case.
If an internal failure is detected a relevant identifying message will be displayed if possible and the
Argus will reset and restart in an attempt to restore normal operation, this will result in de-energisation
of the protection healthy contact and flashing of the protection healthy LED. Reset takes about 2 - 3
seconds.
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Section 2: Functional Description
Each time power is applied to the relay or the relay resets, internal Power On and Reset counters are
incremented; the total count is shown in Instruments:Power On Count, . An alarm level can be set in the CB
Maintenance:Power On Count Alarm and an output will be raised if the count is exceeded, this can be
mapped to an output relay Output Relay: Power On Count.. This can be useful in tracing problems with
substation batteries or relays. The count can be reset either from the Instrument display by pressing
TEST/RESET, use up /down keys to confirm ‘ Y ’, press TEST/RESET again; or, from the CB
Maintenance menu using the ENTER and up /down keys to select ‘ Y ’ and confirm.
Table 2-29 Internal Supervision Setting
Sub-menu: O/P Relay Config.
Setting name
Range (bold = default)
Gn Prot. Healthy
_, 1 for each output contact
(default: 1 _ _ _ _ _ _ _ _ _ _)
Gn PowerOn Count
_, 1 for each output contact
(default: 1 _ _ _ _ _ _ _ _ _ _)
Units
Notes
Units
Notes
Sub-menu: CB Maintenance
Setting name
2.15
Range (bold = default)
Power On Count Reset
NO, YES
Power On Count Alarm
OFF, 1, 2…999
YES / NO confirmation is required.
LINESMAN MODE
Argus 4 and Argus 6 only
Linesman mode is a special mode available on Argus 4 and Argus 6 relays which provides a limited
command set that is intended to allow a user (Linesman) simple access to enable and disable various
features when working on the line, particularly for live line working.
Access to a selected set of settings from various parts within the menu system is provided in the
Linesman Mode menu, together with some commands. These settings differ slightly from other settings in
that they are not password protected and can be accessed and changed using the right (f) key, this
allows them to be set with the relay front cover in place.
The linesman mode is easily reached from the top of the menu tree using the down (d) key.
If the linesman mode is not required it can be hidden using System Config.:Linesman Display, which is
password protected. This setting allows a controlling setting such as SEF OFF to be set and then
hidden such that it cannot accidentally, or easily, be turned back on again
Table 2-30 Linesman Mode Setting
Sub-menu: System Config.
Setting name
Range (bold = default)
Units
Linesman Display
Notes
If attempts are made to access
Linesman mode when it is set to
Hidden the Display will show
VISIBLE, HIDDEN
‘Linesman Display ‘
hidden’
Table 2-31 Linesman Mode Settings and Commands
Setting name
Range (bold = default)
Scada Control
OFF, ON
Hot Line Working
Trip & Lockout
Trip & Reclose
Close & Reclaim
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Units
Note:- YES / NO confirmation required.
OFF, ON
Set to ON for live line working. When
set ‘On’, detection of a fault causes an
instantaneous trip and lockout.
NO, YES
Normally set to ‘NO’, set to ‘YES’ and
confirm Y to carry out command.
Section 2: Functional Description
Numerical Multi-Function Overcurrent Protection Relay
P20007 issue 2004/05
Setting name
Range (bold = default)
ARC
OFF, ON
Inst. Lowset
OFF, ON
Trip Counter Reset
NO, YES
SEF
OFF, ON
Units
Note:- YES / NO confirmation required.
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Section 3: Application Notes
Section 3: Application Notes
3.1
SELECTION OF CHARACTERISTICS
In most applications, especially where the relay must grade with other IDMTL relays on the system,
the characteristic curve is selected to be the same type as the others - e.g. most relays have normal
inverse curves type A to IEC 60255-3 and this would be the usual choice on the Argus relay.
Extremely inverse curves type C to IEC 60255-3 are often used to grade with fuses or moulded case
circuit breakers. Operating times become slower higher up the system due to the required grading
margins between characteristics and VI and NI characteristics are needed. Long Time Inverse can be
used for thermal protection.
The Argus relay measures true RMS values of current and for this reason can be used to protect
capacitor banks or other circuits where harmonics are significant.
Each pole has four independent overcurrent stages and each stage may be instantaneous or time
lagged. When grading with fuses, these characteristics may be combined to give a composite curve to
correctly co-ordinate.
The use of an instantaneous element is common on transformer protection to give fast clearance of
terminal faults. In some instances, such as a feeder that is cabled from a substation and then
becomes an overhead line, the highset can be selected to operate only for cable faults and can be
utilised to block auto-reclosing.
Argus relays can be supplied with sensitive earth-fault or restricted earth-fault functions. Refer to the
VA TECH Reyrolle ACP Application Guide on REF for details.
3.1.1
Reset Delay
The increasing use of plastic insulated cables, both conventionally buried and aerial bundled
conductor, have given rise to the number of flashing intermittent faults on distribution systems. At the
fault position the plastic melts and temporarily reseals the faulty cable for a short time after which the
insulation fails again. The same phenomenon has occurred in compound-filled joint boxes where an
internal flashover temporarily reseals.
The repeating process of the fault often causes electromechanical disc relays to “ratchet” up and
eventually trip the faulty circuit if the reset time of the relay was longer than the time between
successive flashes. Early electronic IDMTL relays with instantaneous reset features were not at all
effective in dealing with this condition and only tripped after the flashing fault had developed into a
solid permanent fault.
To overcome this the Argus relay has a reset that can be user programmed to be either instantaneous
or delayed from 1 to 60 seconds in 1-second steps. Where Argus relays are used to protect cable
feeders, it is recommended that a 60 second reset delay be used.
On overhead line networks, particularly where reclosers are incorporated in the protected system,
instantaneous resetting is desirable to ensure that, on multiple shot reclosing schemes, correct
grading between the source relays and the relays associated with the reclosers is maintained.
3.2
DIRECTIONAL PROTECTION
Argus 2 and Argus 6 relays incorporate discrete directional elements with comprehensive selection so
that each of the 4 current measuring devices can be selected to be either non-directional, forward
directional, reverse directional or bi-directional. In the bi-directional mode, separate sets of settings
can be assigned to the forward and reverse elements. For example, the IDMTL function could be set
to be 100% 0.4 time multiplier in the forward direction and 15% 0.1 time multiplier in the reverse
direction. Similarly, each of the Low Set and High Set elements can have different current and time
settings in each direction and each of the elements can be mapped to any output relay(s).
Convention dictates that forward direction refers to power flow away from the busbar, while reverse
direction refers to power flowing towards the busbar.
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3.2.1
Numerical Multi-Function Overcurrent Protection Relay
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Parallel or Ring Feeder Protection
Consider the network shown in Figure 3-1.
Circuit breakers at E and G would have Argus 2/6 relays installed, set to bi-directional. The E & G
reverse IDMTL elements must be set to grade with the forward settings on the load circuit breaker
relays and the C & D forward element settings; the E & G forward IDMTL elements are set more
sensitive, i.e. with lower current and time multiplier settings to detect feeder faults.
For a fault as shown, close to the load substation, the currents at breakers C and D will have similar
levels and their associated Argus relays will have prospective operate times of the same order. For the
anti-clockwise fault current flow through C, G FWD must be set to be faster than E REV which in turn
must be faster than C (FWD). Relay G will thus Trip first on FWD settings to stop the back feed of the
fault, leaving D (FWD) to operate to clear the fault and the un-faulted Feeder C maintains power to the
load.
If the fault occurred on feeder C, then clockwise fault current will flow through D, E FWD must be set
to be faster than G REV which in turn must be faster than D. Relay E will thus Trip first on FWD
settings to stop the back feed of the fault, leaving C (FWD) to operate to clear the fault and the unfaulted Feeder D (FWD) maintains power to the load.
Relays at C and D at the main substation could be set to non-directional but by setting them to be
directional, the bi-directional function enables different settings to be applied for feeder and busbar
faults. At A and B, bi-directional relays enable sensitive settings to be applied to the forward direction
to detect transformer faults whilst reverse settings can be graded with forward settings at C and D.
By using a single bi-directional Argus relay, with different settings for forward and reverse directions,
complex ring circuits can be set to grade correctly whether fault current flows in a clockwise or counter
clockwise direction, i.e. only one relay must be used where normally two relays are required. The
same applies to Generator circuits.
A
B
C
D
F a u lt
E
G
Load
A rg u s A p p lic a tio n D ia g ra m s / P a ra lle l F d r P ro tn
Figure 3-1 Parallel Feeder Protection
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3.3
Section 3: Application Notes
SENSITIVE EARTH-FAULT PROTECTION
Where sensitive earth-fault settings are required, the setting must be above any line charging current
levels that can be detected by the relay.
On occurrence of an out of zone earth fault the elevation of sound phase voltage to earth in a noneffectively earthed system can result in a zero sequence current of up 3 times phase charging current
flowing through the relay location.
The step change from balanced 3-phase charging currents to this level of zero sequence current
includes transients. It is recommended to allow for a transient factor of 2 to 3 when determining the
limit of charging current. Based on the above considerations the minimum setting of a relay in a
resistance earthed power system is 6 to 9 times the charging current per phase.
3.4
BLOCKING SCHEMES
Where substations in a radial network are physically close, such as on the MV system in a power
station, and pilot cables can be economically run between switchboards, the times set on a particular
relay and an upstream relay can be made identical. This reduces the fault clearance time by
eliminating the grading margin delay. To achieve this, the Overcurrent starter contact of the
downstream relay is connected via pilot wires to Block (inhibit) the upstream relay. Grading is ensured
by this blocking feature provided that the upstream tripping time is set to be longer, with margin, than
the time taken for the downstream blocking signal input to be raised. Figure 3-2 illustrates the scheme.
Power Flow
Radial System
HS1
50ms
DTL
Overcurrent
Protection
Relay
Block
HS1
50ms
DTL
Overcurrent
Protection
Relay
Overcurrent
Protection
Relay
Block
Starter
Starter
Metallic connection required between relaying points
Starter output of downstream relay arranged to block (Inhibit) the next upstream HS1 characteristic via a Status
input
All upstream HS1 elements have same overcurrent setting plus HS1 Delay DTL of 50ms
IDMT protection not affected
Scheme can be arranged to provide pilot wire supervision (trip inhibit)
P300005 Application Diagrams / Blocking
Figure 3-2 Blocking scheme giving fast fault clearance
This example shows the use of a “starter” output to block a Highset protection function for a circuit
breaker nearer to the source. Type tests have shown that with a time delay as low as 40ms on the
upstream Highset function that grading is ensured preventing the upstream relay instigating a trip. For
security reasons a minimum time delay of 50ms is recommended, typically 100ms can be used. The
Blocking Status input used to inhibit the HighSet function should have 10ms Pick-up and Zero Drop-off
delay settings to give fast operation but a.c. pick-up rejection.
The example, shown in Figure 3-2, also proposes the use of IDMTL functions grading in the normal
manner as back-up protection for a down stream circuit, e.g. due to failure of the circuit breaker to
clear a fault.
The combination of blocked lowset or Highset function and IDMTL back-up ensures fast operation for
a circuit fault and, provided the IDMTL grading has been correctly calculated and set, will also provide
back-up protection.
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Busbar Zone Protection
On a radial substation with a defined incomer a simple logic busbar protection can be applied if each
circuit is equipped with an Argus relay, Figure 3-3. As above, the Instantaneous Lowset or Highset
elements in all relays can be set to the same setting, with the Incomers having 50ms grading delays
set. For a fault on any feeder the instantaneous starter contact sends a blocking signal to inhibit
operation of the high-speed protection on the incomer (see Figure 3-3). This inexpensive logic type
protection has been widely applied and has an excellent operating record. However, if any of the
outgoing circuits can feed power back on to the busbars, as can happen in an interconnected network,
then simple non-directional busbar blocking protection cannot be applied.
Incomer
Block - HS1 Inhibit
CBF trip
Radial Substation
HS2 FWD
HS2 FWD
HS2 FWD
HS2 FWD
CBF trip
CBF trip
CBF trip
CBF trip
P300005 Application Diagrams / Busbar Sgl Src
Figure 3-3 Busbar Zone Protection with Circuit Breaker Fail using Non-directional Relays. For
use on Single-source Feed Networks
Where a Busbar fault can be back fed via a feeder then directional Argus relays can be installed on
each circuit and employed as shown in Figure 3-4.
Phase and Earth Fault HighSet 1 elements (HS1) are applied to perform the busbar fault trip function
and in all relays, both Feeder and Incomer, are set to the same current setting, above the maximum
load current but beneath the minimum fault current, and with a minimum, typically 100ms, grading
delay. Each HSI output is mapped to trip its associated Circuit Breaker, therefore, if no block signal is
raised then all circuits with current above HS1 setting will be tripped.
Phase and Earth Fault HighSet 2 Forward elements (HS2) in all relays, both Feeder and Incomer, are
set to the same setting and Forward with no delay (instantaneous) and are connected to the block
(Inhibit) control line of the HS1 elements on all relays. Thus for faults outside the zone busbar
protection all HS1 instantaneous elements will be inhibited. The forward IDMTL function is set to trip a
faulted feeder in accordance with the system grading requirement.
With Argus relays a busbar fault trip initiation needs to be delayed by only 50ms, this is sufficient to
enable a feeder circuit relay fast start output contact to block the incomer circuit relay should the fault
be on a feeder.
Adoption of this philosophy will result in fast clearances of busbar faults coupled with through fault
stability.
If Circuit Breaker fail is required then this must be mapped out from each relay into all other relays on
the busbar, each relay must accept an external Trip input energised from any other relay; or the CBF
outputs must be connected in parallel to a separate common Trip circuit for all Circuit Breakers.
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Section 3: Application Notes
Incomer
Incomer
Incomer
HS2 Fwd
HS2 Fwd
HS2 Fwd
Fwd
Rev
HS1,
IDMT
HS1,
IDMT
HS1
Inhibits
Fwd
HS2
Fwd
Rev
HS1,
IDMT
HS2 Fwd
HS1
Inhibits
Fwd
Rev
HS1,
IDMT
HS1
Inhibits
HS2
Rev
HS2
Rev
HS1,
IDMT
HS2 Fwd
HS1,
IDMT
Rev
HS1
Inhibits
HS2
Fwd
HS1
Inhibits
HS1,
IDMT
HS2 Fwd
Fwd
HS1
Inhibits
HS1
Inhibits
HS1
Inhibits
P300005 Application Diagrams / Busbar Dbl Src
Figure 3-4 Busbar Zone Protection with Circuit Breaker Fail Employing Bi-Directional relays.
For use on fully Interconnected Networks with Remote Supply Sources
If bus coupler and bus section circuit breakers are equipped with CTs and suitable VTs are available,
then bi-directional Argus relays can be fitted to those circuits. Suitable steering of blocking and tripping
signals can ensure that in the event of a busbar fault only the minimum plant is disconnected from the
system. Figure 3-4 shows a typical example of this. If there are no CTs on the bus sections/couplers, a
staged tripping logic can still be established to achieve the same result, although in a little longer time.
3.5
HIGH IMPEDANCE RESTRICTED EARTH-FAULT PROTECTION
The SEF/REF element of the Argus can be used to provide high impedance balanced or restricted
earth-fault protection as shown in Figure 3-5. The SEF/REF starter output is used to provide an
instantaneous trip output from the relay.
A separate VA TECH Reyrolle ACP Ltd. Publication is available covering the calculation procedure for
REF protection.
To summarise the calculation:
The relay Stability (operating) Vs voltage is calculated using worst case lead burden to avoid relay
operation for through-fault conditions where one of the CTs may be fully saturated. The required fault
setting (primary operate current) of the protection is chosen; typically, this is between 10 % and 25 %
of the protected winding rated current. The relay setting current is calculated based on the secondary
value of the operate current, note, however, that the summated CT magnetising current @ Vs must be
subtracted to obtain the required relay operate current setting.
Since the relay operate current setting and stability/operating voltage are now known, a value for the
series resistance can now be calculated.
A check is made as to whether a Non-Linear Resistor is required to limit scheme voltage during
internal fault conditions – typically where the calculated voltage is in excess of 2kV.
The required thermal ratings for external circuit components are calculated.
Figure 3-6 shows the secondary wiring circuit, including the non-linear resistor, if required.
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Balanced Earth-fault
Restricted Earth-fault
P300012 REF / Primary
Figure 3-5 Balanced and Restricted Earth-fault protection of Transformers
relay circuit
series stabilising
resistor
non-linear
resistor
Argus REF
element
P300012 REF / Secondary
Figure 3-6 Restricted Earth-fault Secondary Circuit
Composite overcurrent and REF protection can be provided using a multi-element relay as Figure 3-7.
series
stabilising
resistor
45
46
49
50
53
54
25
26
overcurrent
elements
REF
element
non-linear resistor
P300012 REF / Primary
Figure 3-7 Composite Overcurrent and Restricted Earth-fault Protection
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3.6
Section 3: Application Notes
CIRCUIT BREAKER FAIL PROTECTION
The Argus relay incorporates a two-stage circuit breaker fail feature. If a designated trip relay operates
and the circuit breaker fails to open, the protection algorithm continues to run for as long as current,
above the starter level or CBF level detector setting, continues to flow and a continuous trip output is
given. This combination of conditions is programmed to start a definite time lag feature designated
“CB Fail 1”. This function can be programmed to energise an output relay when the C.B. fail time delay
is completed. At the same time operation of this timer starts a second time lag feature designated “CB
Fail 2” and if the trip outputs already initiated do not stop the current flow through the relay, another
relay can be programmed through the output matrix to trip a further breaker e.g. a bus section circuit
breaker.
Schemes
These timers support schemes as follows:
• Single stage CB fail, where all adjacent upstream infeeds are tripped after DTL1 on detection of a
CB fail occurrence.
• Two stage CB fail, where stage 1 DTL outputs attempt to re-trip the faulted CB in stage 1 time
delay and when this fails the stage 2 time delayed output trips the relevant adjacent infeeds.
The circuit breaker fail feature can also be used to implement a multi-stage tripping scheme. A typical
example of this is illustrated in Figure 3-3.
Setting Calculation
The time delay setting applied to the CB fail protection must be in excess of:
the longest CB operate time + relay reset time + a safety margin
Typically, 80 ms + 42 ms + 50 ms = 175ms (approximately)
3.7
AUTO-RECLOSE APPLICATIONS
Argus 4 and Argus 6 only.
Automatic circuit reclosing is extensively applied to overhead line circuits where a high percentage of
faults that occur are of a transient nature and cause no permanent damage to connected plant. The
benefits of auto-reclosing are:
• Reduce to a minimum the loss of supply to the customer.
• Allows greater automation of the network with relevant cost savings.
• Instantaneous fault clearance is possible thereby minimising fault damage.
3.7.1
Reclose Time Setting
The reclose time is defined as the time between the auto-reclose scheme being energised and the
operation of the output contacts that energise the circuit breaker closing circuit. Selection of the
optimum time setting is influenced by the recloser characteristics, the type of load supplied, and the
nature of the fault.
The recloser mechanism reset time and closing time (interval between energisation of the mechanism
and the making of the contacts) or the recloser duty cycle make up the minimum reclose time imposed
by the recloser.
Where the connected plant consists of a motor circuit, the motor type must be taken into consideration
as regards the requirements of the auto-reclose scheme. Synchronous machines require a reclose
time sufficiently long enough to ensure operation of their undervoltage protection, i.e. should not be
reconnected. Whilst for induction motors the interruption period needs to be short to enable them to
coast until reconnection of the supply.
For overhead lines applications the reclose time must be long enough to allow the ionised air to
disperse. Factors that affect the de-ionisation time are the system voltage, cause of the fault, and
weather conditions.
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Reclaim Time Setting
The reclaim time is defined as the time window following a successful closing operation within which if
a fault occurs the current reclose sequence will continue. After the Reclaim time if a fault occurs a new
sequence will start. Under repetitive fault conditions a long reclaim time in excess of the interval
between successive faults may cause unnecessary lockout and interruption of supply.
3.7.3
Shots to Lockout Setting
There are no strict guidelines for setting this parameter but a few factors need to be taken into
consideration. The recloser design should be taken into account and the system conditions should be
examined as to the nature of typical faults. If there is a sufficient percentage of semi-permanent faults
which could be burnt away, e.g. fallen branches, a multi shot scheme would be appropriate.
Alternatively, if there is a likelihood of permanent faults, a single shot scheme would provide a higher
quality of supply.
3.7.4
Sequence Auto-reclosing
In Argus 4 & 6 auto-reclose Relays, the low-set overcurrent stage functions as the Instantaneous trip.
Complex sequences may be user programmed to give the best fault clearance strategy.
The Argus 4 and 6 relays provide auto-reclosing with sequence co-ordination of the Instantaneous
low-set characteristics and Shot Counters. The source low-set is time delayed (i.e. time delayed
instantaneous and grading and Sequence Co-ordination with a downstream instantaneous recloser is
ensured. Typically, an auto-reclose sequence set to 2 Instantaneous Trips plus one Delayed Trip will
restore supplies for 90% of fault conditions.
3.8
TRIP CIRCUIT SUPERVISION
The Argus relay can be used to supervise one or more trip circuits, via status inputs, with the
associated circuit breaker open or closed. A low value of d.c. current is passed through the entire trip
circuit to monitor the auxiliary supply, the trip coil, its auxiliary switch, the C.B. secondary isolating
contacts and the relevant wiring/links. If the circuit develops a fault and monitoring current flow
ceases, the normally energised status input drops off and if it is user programmed to operate one of
the output relays, then this relay gives a contact output to signal Trip Circuit Fail. In addition, the LCD
display on the Argus relay will indicate “Trip Circuit FAIL”.
To avoid giving spurious alarm messages while the circuit breaker is operating, the status input should
be programmed to have a 400 ms drop-off delay.
Schemes, based on the Electricity Association H6/H5 schemes, are shown below.
Argus relay
+ve
Circuit breaker
-ve
Trip contacts
Trip coil
For 110/125 VDC
use external 2K7
dropper resistor
with 48V status
input
Status input
Auxiliary contacts
P300005 Application Diagrams / TCS
Figure 3-8 Engineering Recommendations S.15 H6 Trip Circuit Supervision scheme
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Section 3: Application Notes
This scheme provides continuous Trip Circuit Supervision of trip coil with circuit breaker Open or
Closed. It does not, however, provide pre-closing supervision of the connections and links between
the tripping contacts and the circuit breaker.
Circuit breaker
Reyrolle protection relay
Open position
-ve
+ve
Trip contacts
Trip Link
Trip coil
Rs
Rd
Auxiliary contacts
Status input
Provides continuous Trip circuit supervision of all wiring and links with Breaker Open or Closed.
Auxilliary
Status
Rs
Rd
ITRIP COIL
ITRIP COIL
ITC max Note1
Voltage
Voltage
CB Open
CB Closed
CB Closed
110/125 V
110/125 V
220/250 V
48 V
110/125 V
220/250 V
2K7
4K7
10K
2K7
4K7
10K
< 20 ma
< 2.5 ma
< 2.5 ma
< 35 ma
< 5 ma
< 5 ma
< 55ma
< 35 ma
< 30 ma
Note 1:- Worst case current - Short circuit applied across Status input with CB Closed and max Auxilliary Voltage.
Resistors must be at least 18 Watt rated and connected using crimped connections as under worst case they will
run hot.
P300005 Application Diagrams / TCS H5
Figure 3-9 Engineering Recommendations S.15 H5 Trip Circuit Supervision scheme
This scheme provides continuous, high security, Trip Circuit Supervision of all wiring and links with
circuit breaker Open or Closed. Note a TCS Alarm will be generated if the trip contact is latched.
3.9
OUTPUT RELAYS
The output relays in the Argus range can be programmed to be self or hand reset. In the hand reset
mode, a status input can be programmed to electrically reset the hand reset output relays. In Figure
3-1, if the transformers at A and B are, for example, 132 / 33kV or 132 / 11kV and, on the 132kV side
there are no local circuit breakers but motor operated isolators, then the reverse characteristic
elements can be programmed to operate a hand reset output relay. This relay can be wired to give an
intertrip signal and initiate isolator operation. In due course, this output relay can be remotely reset by
a status input.
3.10
POST-FAULT ANALYSIS
Argus overcurrent protection relays provide extensive information for post-fault analysis; however, to
use this effectively the Argus must be correctly set when put into service. This section describes
measures that should be taken to ensure the correct data is captured in the event of a fault.
3.10.1 Events, Fault and Waveform Records
Fault records provide textual information on the source of the trip within the Argus, i.e. the element
that tripped and any elements that were picked up at the time of trip. This gives the first indication of
the type of fault.
However, the fault record should be examined in coordination with the event records to see the full
sequence of events leading to a trip. It is possible to identify developing and flashing faults using the
event records.
If a waveform record is available, the current waveforms (and voltage waveforms in some models)
allow the type of fault to be easily identified. However, the waveform record lasts only 1 second,
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whereas the event records will cover many seconds or minutes. If a fault is of a flashing nature this will
be apparent from the event records, while the waveform record may show only the final overcurrent
leading to trip.
3.10.2 Fault triggers
In order to generate a fault record it is important that the fault trigger is correctly set. A fault will be
recorded if any element trips and it is mapped to an output relay that is defined as a fault trigger relay.
Therefore, any output relay that trips a circuit breaker should be set as a fault trigger relay using the
Data Storage:Fault Trigger setting. In addition, if it is required to record a fault for any other element, an
output relay driven by that element should also be defined as a fault trigger relay.
3.10.3 Waveform triggers
In order to generate a waveform record on occurrence of a fault it is important that the waveform
trigger is correctly set. Each type of fault (phase-fault, earth-fault or SEF) for which it is required to
record a waveform must be set using the Data Storage:Waveform Trig setting. This setting also allows
waveform triggering to be enabled from external sources using the status inputs. If external waveform
triggering is required the status input must also be correctly set using the Status Config.:Waveform Trig
setting.
When the source of waveform triggers has been selected consideration should be given to the pretrigger recording. Each waveform is 1 second long, therefore, for a delayed element, the current could
be present for a few hundred milliseconds (or over 1 second) before a trip occurs. Following the trip
output it is likely that the current will continue to be present for one to two hundred milliseconds before
the circuit breaker interrupts the current.
The Data Storage:Waveform Pre-Trigger setting allows a percentage, typically 80%, of the 1 second to be
allocated to pre-trigger recording. The user should consider the application, the likely fault type, and
the area of greater interest (inception of fault or post-trip waveform) when applying this setting,
3.10.4 ReyDisp (IEC 60870-5-103)
The ReyDisp Evolution software allows the recorded data (events, fault records, waveform records) to
be uploaded from the Argus to a PC for analysis. When saving data it is important to save the applied
settings at the time of trip, in order to correctly interpret the data.
Get All Data
The ReyDisp ‘Get All Data’ command allows all data to be easily uploaded from the Argus.
If this command is selected ReyDisp will ask the user to specify a directory name (which will be
created if it does not exist) and will then upload all events, all 5 fault records, all 5 waveform records
and all settings from all 8 settings groups.
This ensures that all necessary data is available for post-fault analysis.
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Section 4: Communication Interface
Section 4: Communication Interface
4.1
INTRODUCTION
Argus relays can communicate with controlling systems using either IEC60870-5-103 or MODBUS
communications protocols. The protocol is selectable in the relay settings menu.
4.1.1
Comms Protocol Setting
The relay protocol can be selected from a default setting of IEC60870-5-103 to Modbus RTU
whichever is required. The Communications Interface:Comms Protocol setting should match that of any
communicating device.
4.2
IEC 60870-5-103
Argus relays can communicate with control and automation systems, or with PCs running ReyDisp
software, to provide operational information, post-fault analysis and settings interrogation and editing.
This section describes how to use the IEC 60870-5-103 compliant Informative Communication
Interface with a control system or interrogating computer. Appropriate software within the control
system or on the interrogating computer (e.g. ReyDisp Evolution) is required to access the interface.
This section specifies connection details provided in the Argus relays. For further information
regarding the interface reference should be made to the separate Informative Communications
Interface manual (reference 434/TM/5), which covers all Reyrolle products. See website www.reyrolleprotection.com
The same communications interface is used to provide control system connections and for dialogue
communications by the protection engineer. An appropriate IEC 60870-5-103 control system interface
will be required for the former application, while the latter is provided by ReyDisp Evolution software.
4.2.1
Physical Connection
The Argus complies with the physical requirements of IEC 60870-5-103 using fibre-optics however it is
possible to apply more flexible, but non-compliant, settings for connection to PCs etc.
4.2.2
Medium
The communicating medium is optical fibre. The device communicating with the Argus should have a
fibre-optic interface, preferably optimised for 62.5/125 µm glass fibre. If the communicating device,
e.g. a PC, has an RS232C electrical interface, a fibre-optic to RS232 converter is required.
4.2.2.1 Sigma Fibre-optic to RS232 Converters
VA TECH Reyrolle ACP Ltd. can provide a range of fibre-optic to RS232 converter devices:
• Sigma 1 – a panel mounting fibre-optic star coupler, for up to 29 slaves. An RS232 port is available
at the front of the device. By default, communication is to the master fibre connections on the rear,
however communication is automatically switched to the front RS232 port when a communicating
programme is activated on it. Each fibre-optic port can be individually selected between ‘Light On’
and ‘Light Off’ (see section 0).
• Sigma 3 – a panel mounting fibre-optic to RS232 converter. Two RS232 ports are available, one at
the rear for connection to a modem, and one at the front for connection to a local PC. By default
the rear port is active, however, communication is automatically switched to the front port when a
communicating programme is activated on it. The fibre-optic port can be selected between ‘Light
On’ and ‘Light Off’ (see section 0).
• Sigma 4 – a loose fibre-optic to RS232 converter.
Full details of the above devices can be found by referring to the website www.reyrolle-protection.com.
Page 68 of 75
Section 4: Communication Interface
4.2.3
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Recommended cable
Selection of fibre-optic cable is important. Fibres must be terminated with STTM (BFOC/2.5)
connectors.
The recommended type is 62.5/125µm glass fibre. Communication distances over 1 km are
achievable using this type of fibre.
4.2.4
Network Topology
RS232
Communication networks can be connected either in star or ring format.
Sigma 4
(SG4-103)
Tx
Rx
Rx
Tx
Laptop computer
P300007 Communications.vsd / Sigma 4 remote
Figure 4-1 to illustrates a number of network arrangements.
4.2.5
Settings
Communication parameters of Communications Interface:Comms Baud Rate, Communications Interface:Comms
Parity and Communications Interface: Line Idle should match those of the communicating device.
4.2.6
IEC Class II Measurands
Class II measurands can be sent as either ASDU 3 (reports 1 current channel) or ASDU 9 (reports 9
channels, Ia, Ib, Ic, Va, Vb, Vc, P, Q), The values are returned as a fraction of a nominal value ie 1A,
63.5v. The Communications Interface:IEC Class II Measurand setting should be set as appropriate for each
system.
4.2.7
IEC Class II Update period
The class II measurand is updated in the relay at a period dependant on the Communications
Interface:Class 2 Update Period setting. This ranges from instantaneous (constantly updated) to every 60s
(updated every minute).
4.2.8
IEC Class II scaling
The measurands returned are fractions of nominal system quantities. The maximum range of the
measurand can be set either 1.2 or 2.4 times the nominal. Values that exceed this range will be
returned as the maximum value and flagged overflow. Note using 2.4 times scaling will double the
range but half the resolution per bit. The Communications Interface: IEC Class II Scaling setting
should be set as appropriate for each system.
4.2.9
Baud Rate
Rates of 19200, 9600, 4800, 2400, 1200, 600, 300, 150, 110 and 75 bits per second are provided. However,
only 19200 and 9600 are defined in IEC 60870-5-103, the additional rates are provided for local or
modem communications.
The Communications Interface:Comms Baud Rate setting should match that of the communicating device,
e.g. P.C.
4.2.10 Comms Parity
IEC 60870-5-103 defines transmission as using Even parity, however, in some instances an alternative
may be required. The Communications Interface:Comms Parity setting allows parity of None to be selected.
This setting should match that of the communicating device, e.g. PC.
Page 69 of 75
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Section 4: Communication Interface
4.2.11 Relay Address
Each relay on a network must have a unique address, between 1 and 254, as set by the Communications
Interface:Relay Address setting. A relay with the default address of 0 will not be able to communicate.
4.2.12 Line Idle
The IEC60870-5-103 protocol defines a line idle state of Light On. Binary ’0’ is represented by light on,
binary ‘1’ is represented by light off, and when a device is not communicating it idles with the light on
(sending ‘0’). This allows detection of a broken fibre condition. When the line is idling, a binary ‘0’
should be received constantly. If binary ‘1’ is received constantly, then no light is being received,
hence the fibre may be broken.
The Communications Interface: Line Idle setting must be set to be either on or off to be compatible with the
communicating device connected to the relay.
4.2.13 Data Echo
Argus relays may be connected in a ring, e.g. as shown in Fig.4.3. The optical ring architecture
requires data to be passed from one relay to the next, therefore, when using this method, all relays in
the ring must have the Communications Interface:Data Echo setting to On.
For Argus with individual connections (e.g. Figure 1-1 ), or connected in a star topology (e.g. Figure
4.4), the setting should be set to Off.
Table 4-1
Communications Settings
Sub-menu: Communications Interface
Setting name
Range (bold = default)
Comms Protocol
IEC 60870-5-103, MODBUS-RTU
IEC Class 2 Measurand
ASDU 3, ASDU 9
Class 2 Update Period
INST, 1, 2 .. 60
IEC Class 2 Scaling
1.2x, 2.4x
Comms Baud Rate
75, 110, 150, 300, 600, 1200, 2400,
4800, 9600, 19200
Comms Parity
NONE, EVEN
Relay Address
0, 1…254
Line Idle
LIGHT ON, LIGHT OFF
Data Echo
OFF, ON
Units
Notes
Sec
baud
4.2.14 Modems
The communications interface has been designed to allow data transfer via modems. However, IEC
60870-5-103 defines the data transfer protocol as an 11 bit format of 1 start, 1 stop, 8 data and even
parity, which is a mode most commercial modems do not support. High performance modems will
support this mode.
4.2.15 Connecting a Modem to the Relay(s)
RS232C defines devices as being either Data Terminal Equipment (DTE) e.g. computers, or data
Communications Equipment (DCE), e.g. modems, where one is designed to be connected to the
other. In this case, two DCE devices (the modem and the fibre-optic converter) are being connected
together, so a null terminal connector is required, which switches various control lines. The fibre-optic
converter is then connected to the relay network Tx to Relay Rx and Rx to Relay Tx.
4.2.16 Setting the Remote Modem
The exact settings of the modem are dependent on the type of modem. Although most modems
support the basic Hayes ‘AT’ command format, different manufacturers use different commands for
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the same functions. In addition, some modems use DIP switches to set parameters, others are entirely
software configured.
Before applying the following settings, the modem’s factory default settings should be applied, to
ensure it is in a known state.
Several factors must be considered to allow remote dialling to the relays. The first is that the modem at
the remote end must be configured as auto answer. This will allow it to initiate communications with
the relays. Next, the user should set the data configuration at the local port, i.e. baud rate and parity,
so that communication will be at the same rate and format as that set on the relay and the error
correction is disabled.
Auto-answer usually requires two parameters to be set. The auto-answer setting should be switched
on and the number of rings after which it will answer selected. The Data Terminal Ready (DTR)
settings should be forced on. This tells the modem that the device connected to it is ready to receive
data.
The parameters of the modem’s RS232C port are set to match those set on the relay, set baud rate
and parity to be the same as the settings on the relay and number of data bits to be 8 and stop bits 1.
Note, although the Argus may be able to communicate with the modem at say 19200 bps, the modem
may only be able to transmit over the telephone lines at 14400 bps. Therefore, a baud rate setting on
which the modem can transmit should be chosen. In this example, a baud rate of 9600 should be
chosen.
As the modems are required to be transparent, simply passing on the data sent from the controller to
the device and vice versa, error correction and buffering should be turned off.
If possible Data Carrier Detect (DCD) should be forced on, as this control line will be used by the
Fibre-optic converter.
Finally, these settings should be stored in the modem’s memory for power on defaults.
4.2.17 Connecting to the Remote Modem
RS232
Once the remote modem has been configured correctly it should be possible to dial up the modem
and make connection to the relay. As the settings on the remote modem are fixed the local modem
should negotiate with it on connection choosing suitable matching settings. If it cannot do this, the
local modem should be set with settings equivalent to those of the remote modem as described
above.
Sigma 4
(SG4-103)
Tx
Rx
Rx
Tx
Laptop computer
P300007 Communications.vsd / Sigma 4 remote
Communication to Argus Relay using Sigma 4 (Local Connection)
Telephone
Network
RS232
Figure 4-1
Sigma 4
(SG4-103)
Tx
Rx
Rx
Tx
Laptop computer
P300007 Communications.vsd / Sigma 4 remote
Figure 4-2 Communication to Argus Relay using Sigma 4 and Modem
Page 71 of 75
Technical Reference – Argus Overcurrent Protection Relays
P20007 issue 2004/05
Section 4: Communication Interface
Control
System
Laptop computer
Rear
RS232
Front
RS232
Rx
Sigma 3
(SG4-103)
Rx
Tx
serial
optical
ring
Tx
Tx
Rx
optional 12 VDC
power supply
Tx
Rx
Tx
Rx
P300007 Communications.vsd / Sigma 3
Figure 4-3 Communication to Multiple Argus Relays from Control System and Laptop with
Sigma 3 and Fibre-optic Ring Network
Control
System
Tx
Rx
master
link
Auxiliary supply
Rx
Tx
Tx
Front
RS232
Sigma 1
Rx
...
up to 29 slaves (relays)
Tx
Rx
Rx
Tx
Laptop computer
P300007 Communications.vsd / Sigma 1
Figure 4-4 Communication to Multiple Argus Relays from Control System and Laptop with
Sigma 1 and Fibre-optic Star Network
4.3
INTRODUCTION – MODBUS RTU
This section describes how to use the Modbus Interface with a compliant control system. For further
information regarding the interface, reference should be made to the Argus Modbus implementation
report 434/TIR/14 available on website www.reyrolle-protection.com
The same communications interface is used to provide control system connections.
The Argus complies with the physical requirements of Modbus using fibre-optics or an RS485
interface.
4.3.1
Medium
The communicating medium is optical fibre or electrical RS485. The device communicating with the
Argus should have an interface optimised for 62.5/125 µm glass fibre-optics, or RS485 electrical
connection.
Page 72 of 75
Section 4: Communication Interface
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P20007 issue 2004/05
4.3.1.1 Sigma Fibre-optic to RS232 Converters
See previous section 4.2.2.1.
4.3.2
Recommended cable
Selection of fibre-optic cable is important. Fibres must be terminated with STTM (BFOC/2.5)
connectors. The recommended type is 62.5/125µm glass fibre. Communication distances over 1 km
are achievable using this type of fibre.
The RS485 electrical interface can be connected using 120 ohm screened twisted pair wire i.e. Belden
9841 or equivalent.
4.3.3
Network Topology
Fibre optical communication networks can be connected singularly or in a star configuration. Modbus
does not support a fibre optic ring configuration.
RS485 electrical connection can be used in a single or multi-drop configuration. The last device must
be terminated correctly.
Figure 4-1 & Figure 4-4 illustrate typical network arrangements.
4.3.4
Settings
Communication parameters of Communications Interface:Comms Baud Rate, Communications Interface:Comms
Parity and Communications Interface: Line Idle should match those of the communicating device.
4.3.5
Comms Protocol
See previous section 4.1.1
4.3.6
Baud Rate
Rates of 19200, 9600, 4800, 2400, 1200, 600, 300, 150, 110 and 75 bits per second are provided.
The Communications Interface:Comms Baud Rate setting should match that of the communicating device,
4.3.7
Comms Parity
The Communications Interface:Comms Parity setting allows parity of Even or None to be selected. This setting
should match that of the communicating device.
4.3.8
Relay Address
Each relay on a network must have a unique address, between 1 and 247, as set by the Communications
Interface:Relay Address setting. A relay with the default address of 0 will not be able to communicate. The
actual number of devices will be limited to 32 devices on any one RS485 connection.
4.3.9
Line Idle
If the communication medium is fibre-optic the Communications Interface: Line Idle setting defines the
quiescent state. When set as Light On binary ’0’ is represented by light on, binary ‘1’ is represented by
light off and vice versa for Light Off mode. While in Light On mode and the device is not communicating
it maintains the Light On mode to allow breaks in the cable to be detected. These potential breaks
would not be detected when the device mode is set to Light Off.
This must be set to OFF when connected to the RS485 electrical connection.
4.3.10 Data Echo
All relays must have the Communications Interface:Data Echo setting to OFF.
Page 73 of 75
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Table 4-2
Section 4: Communication Interface
Communications Settings
Sub-menu: Communications Interface
Setting name
Range (bold = default)
Comms Protocol
IEC 60870-5-103, MODBUS-RTU
Comms Baud Rate
75, 110, 150, 300, 600, 1200, 2400,
4800, 9600, 19200
NONE, EVEN
Relay Address
0, 1…254
Line Idle
LIGHT ON, LIGHT OFF
Data Echo
OFF, ON
RS232
Comms Parity
Sigma 4
(SG4-103)
Units
Notes
baud
Tx
Rx
Rx
Tx
Laptop computer
P300007 Communications.vsd / Sigma 4 remote
Figure 4-5 Communication to Argus Relay using Sigma 4 (Local Connection)
Control
System
Tx
Rx
master
link
Auxiliary supply
Rx
Tx
Tx
Front
RS232
Sigma 1
Rx
...
up to 29 slaves (relays)
Tx
Rx
Rx
Tx
Laptop computer
P300007 Communications.vsd / Sigma 1
Figure 4-6 Communication to Multiple Argus Relays from Control System and Laptop with
Sigma 1 and Fibre-optic Star Network
Page 74 of 75
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P20007 issue 2004/05
RS232
Section 4: Communication Interface
RS485
A
A
B
B
Laptop computer
P300007 Communications.vsd / RS485 - RS232
RS232
Figure 4-7 Communication to Argus Relay using RS485 – RS232 converter (Local Connection)
RS485
A
A
A
A
A
A
B
B
B
B
B
B
Laptop computer
P300007 Communications.vsd / RS485 - Multidrop
Figure 4-8 Communication to Argus Relay using RS485/RS232 converter (Multidrop Connection)
4.3.11 Glossary
Baud Rate
See bits per second.
Bit
The smallest measure of computer data.
Bits Per Second (BPS)
Measurement of data transmission speed.
Data Bits
A number of bits containing the data. Sent after the start bit.
Half-Duplex Asynchronous Communications
Communications in two directions, but only one at a time.
Hayes ‘AT’
Modem command set developed by Hayes Microcomputer products, Inc.
Modem
MOdulator / DEModulator device for connecting computer equipment to a telephone line.
Parity
Method of error checking by counting the value of the bits in a sequence, and adding a parity bit to
make the outcome, for example, even.
Parity Bit
Bit used for implementing parity checking. Sent after the data bits.
RS232C
Serial Communications Standard. Electronic Industries Association Recommended Standard Number
232, Revision C.
Start Bit
Bit (logical 0) sent to signify the start of a byte during data transmission.
Stop Bit
Bit (logical 1) sent to signify the end of a byte during data transmission.
Page 75 of 75
Diagrams and Parameters
Argus 1
P20008 issue 2004/05
DOCUMENTATION SET
This document is part of a set. The full list of documents in the set, and the publication numbers under
which they can be ordered, is given below. These documents can be provided on request to VA TECH
Reyrolle ACP Ltd. on +44 191 401 1111. They can also be found on our website at
www.reyrolle-protection.com.
Argus Overcurrent Protection Relays
Complete Product Documentation set
P1001
•
•
•
•
•
•
P20006 issue 2004/05
P20007 issue 2004/05
P20008 issue 2004/05
P20009 issue 2004/05
P20010 issue 2002/12
P20011 issue 2002/12
Argus User Manual
Argus Overcurrent Technical Reference
Argus 1 Diagrams and Parameters
Argus 2 Diagrams and Parameters
Argus 4 Diagrams and Parameters
Argus 6 Diagrams and Parameters
The copyright and other intellectual property rights in this document, and in any model or article produced from it (and including
any registered or unregistered design rights) are the property of VA TECH Reyrolle ACP Limited. No part of this document shall
be reproduced or modified or stored in another form, in any data retrieval system, without the permission of VA TECH Reyrolle
ACP Limited, nor shall any model or article be reproduced from this document unless VA TECH Reyrolle ACP Limited consent.
While the information and guidance given in this document is believed to be correct, no liability shall be accepted for any loss or
damage caused by any error or omission, whether such error or omission is the result of negligence or any other cause. Any
and all such liability is disclaimed.
P20008 issue 2004/05
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
DOCUMENT RELEASE HISTORY
This document is issue 2004/05. The list of revisions up to and including this issue is:
2004/05
Second issue: Modification of CBF feature, software release updated, Modbus
protocol included, connection diagram for new models
2002/12
First issue
Page 2 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
SOFTWARE RELEASE HISTORY
The software listed below is used in one of more types Argus relay. The list of software revisions
applying to Argus 1, up to and including this document issue is:
April 2004
2434H80023 R6
Minimum setting for P/F – E/F elements now 0.05 xIn
Jan 2004
2434H80023 R5
Additional features: Modbus added
Additional features: CT Failure function added
Minor change:
Sep 2003
Mar 2003
2434H80023 R4
2434H80023 R3
IEC60870 Class 2 measurands
Additional features: CBF Level detectors added
Minor change:
DTL timers extended to 5 minutes
Minor change:
Time synch via IEC870
Nov 2002
2434H80023 R2
Minor change:
communications with ReyDisp
Jun 2002
2434H80023 R1
Minor change:
power on alarm added
Feb 2002
2434H80022 R3
Additional features: CB fail (all models).
Oct 2001
2434H80022 R2
Additional features: external trip via status input.
Minor change:
Feb 2001
2434H80022 R1
SEF 2nd stage can be disabled.
Additional features: general alarms, status input inversion, resettable
instruments, output relay pulse length setting, 10
second delay on trip test.
Additional features: CB fail, trip circuit supervision (single-pole
models).
Jan 2000
2434H80021 R5
Minor change:
current meter averaging.
Jul 1999
2434H80021 R4
Minor change:
status group select
May 1999
2434H80021 R3
Additional features: default instruments
Mar 1998
2434H80020 R1
Additional features: new expansion board (8SI).
Sep 1997
2434H80019 R4
Minor change:
Jul 1997
2434H80019 R3
Additional features: status input pick-up and drop-off delays added.
Additional features: clock synchronisation using status input
settings displayed in ReyDisp
Additional features: CB fail, trip circuit supervision (all expanded I/O
models).
Apr 1997
2434H80018 R2
Minor change:
separate settings for P/F, E/F and SEF current
ratings.
Minor change:
sum of I2 setting range.
Additional features: CB fail, trip circuit supervision (some models).
Additional features: reset of latched output relays by status input.
Jan 1997
2434H80024…7 R2
Minor change:
Oct 1996
2434H80024…7 R1
Additional features: new status input functions: setting group select,
all algorithms can be inhibited.
event numbers.
Mar 2000
2434H80002…7 R17
Additional features: first version with I/O expansion card (4SI+4OR).
Minor change:
current meter averaging.
Mar 1998
2434H80002…7 R16
Minor change:
real time clock.
Jan 1997
2434H80002…7 R15
Minor change:
settings group changes delayed until no
protection elements are operating.
Oct 1996
2434H80002…7 R13
Minor change:
communications parity setting added.
Jul 1996
2434H80002…7 R12
Minor change:
user must press enter after factory defaults
applied.
Jun 1996
2434H80002…7 R10
Minor change:
sum of I2 setting range.
Minor change:
output relay minimum energise time reduced
from 200 to 100 ms.
Minor change:
‘factory defaults’ display.
Minor change:
fault record text for characteristic element.
Page 3 of 30
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P20008 issue 2004/05
Apr 1996
Apr 1996
Apr 1996
Page 4 of 30
2434H80002…7 R8
2434H80002…7 R7
2434H80002…7 R6
Minor change:
copy group setting default.
Minor change:
fault record text for characteristic element.
Minor change:
relay information provided in communications.
Minor change:
communication baud rates.
Minor change:
IDMTL starter drop-off, and relay reset timer.
First release
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
HARDWARE RELEASE HISTORY
The Argus hardware is used in many different relays. The list of hardware revisions applying to Argus
1, up to and including this document issue is:
Feb 2004
Additional model:
Mar 2002
Appearance change: modification to grey fascia design – logo, dark grey band, buttons and label.
4 pole variant with 3 status inputs and 5 output relays
Jan 2002
External change:
Jul 1999
Appearance change: introduction of grey fascia design to replace existing black fascia.
Jul 1999
External change:
introduction of Epsilon case and terminal blocks
Mar 1998
Additional features:
introduction of new expansion board (8SI).
SMA fibre-optic connectors replaced by STTM (BFOC/2.5) by default.
Apr 1997
Internal change:
introduction of additional memory
Oct 1996
Additional features:
introduction of I/O expansion card (4SI+4OR).
Nov 1995
First release
Page 5 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
CONTENTS
Documentation Set.................................................................................................................................1
Document Release History ....................................................................................................................2
Software Release History ......................................................................................................................3
Hardware Release History .....................................................................................................................5
Contents ..................................................................................................................................................6
List of Figures.........................................................................................................................................6
Section 1: Variants .................................................................................................................................7
Section 2: Settings .................................................................................................................................8
Section 3: IEC 60870-5-103 & Modbus RTU Definitions ...................................................................13
3.1 IEC 60870-5-103 Definitions ...................................................................................................13
3.2 Modbus RTU Definitions .........................................................................................................20
Section 4: Application Diagrams ........................................................................................................26
LIST OF FIGURES
Figure 2-1
Figure 4-1
Figure 4-2
Figure 4-3
Figure 4-4
Figure 4-5
Figure 4-6
Figure 4-7
Figure 4-8
Figure 4-9
Page 6 of 30
Status Input and Output Relay Programming Matrix .........................................................12
Typical Connection for Earth-fault Protection ....................................................................26
Typical Connection for Sensitive Earth-fault Protection ....................................................27
Typical Connection for 3 Phase-fault Protection................................................................27
Typical Connection for 2 Phase-fault and Earth-fault Protection.......................................28
Typical Connection for 2 Phase-fault and Sensitive Earth-fault Protection .......................28
Typical Connection for 3 Phase-fault and Earth-fault Protection.......................................29
Typical Connection for 2 Phase-fault, Earth-fault and Sensitive Earth-fault
Protection ...........................................................................................................................29
Typical Connection for 3 Phase-fault and Sensitive Earth-fault Protection .......................30
Typical Connection for 3 Phase-fault and Earth-fault Protection – 1A or 5A
Version ...............................................................................................................................30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
Section 1: Variants
This document applies to the Argus relays listed in the following table.
The table uses two references for most relays, each of which is valid:
• an ‘Order code’ of the form AGn-nnn, and
• a ‘Type’ of the form DCDnnnX
where n is a digit and X is a letter.
Order code / Type
Protection
Application
I/O
Diagram
Single phase-fault or earth-fault
Sensitive earth-fault
3 phase-fault, or
2 phase-fault and earth-fault
Figure 4-1
1 SI
7 OR
Figure 4-2
1 SI
7 OR
3 phase-fault and earth-fault
48V status
110/220 aux.
48V status
110V status
220V status
DCD111A
AG1-101
DCD113A
AG1-102
DCD114A
DCD115A
DCD116A
DCD121A
AG1-103
DCD123A
AG1-104
DCD124A
DCD125A
DCD126A
AG1-302
DCD314A
DCD315A
DCD316A
DCD315B
DCD316B
Figure 4-3
1 SI
7 OR
DCD311A
AG1-301
DCD313A
Figure 4-4
5 SI
11 OR DCD311B
AG1-311
DCD313B
AG1-312
DCD314B
9 SI
7 OR
DCD311C
AG1-321
DCD313C
AG1-322
DCD314C
DCD315C
DCD321A
AG1-303
DCD323A
AG1-304
DCD324A
DCD325A
5 SI
11 OR DCD321B
AG1-313
DCD323B
AG1-314
DCD324B
9 SI
7 OR
DCD321C
AG1-323
DCD323C
AG1-324
DCD324C
1 SI
7 OR
DCD411A
AG1-401
DCD413A
AG1-402
DCD414A
DCD415A
DCD416A
5 SI
11 OR DCD411B
AG1-411
DCD413B
AG1-412
DCD414B
DCD415B
DCD416B
9 SI
7 OR
AG1-421
DCD413C
AG1-422
DCD414C
DCD415C
DCD416C
1 SI
7 OR
2 phase-fault and SEF
30/48 aux.
30V status
Figure 4-5
Figure 4-6
DCD411C
3 phase-fault and earth-fault 1A
3 SI
5 OR
AG1-431
AG1-433
3 phase-fault and earth-fault 5A
3 SI
5 OR
AG1-432
AG1-434
DCD421A
AG1-403
DCD423A
AG1-404
DCD424A
DCD425A
DCD426A
5 SI
11 OR DCD421B
AG1-413
DCD423B
AG1-414
DCD424B
DCD425B
DCD426B
9 SI
7 OR
AG1-423
DCD423C
AG1-424
DCD424C
DCD425C
DCD426C
3 phase-fault and SEF, or
Figure 4-8
2 phase-fault, earth-fault and SEF Figure 4-7
1 SI
7 OR
DCD421C
Page 7 of 30
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Section 2: Settings
Relay Type
Serial Number
Substation
Feeder Identity
Notes on Tables
All settings found in the Argus 1 relay types are listed below. Within the list some settings (indicated
with greyed cells) are not always visible, for the following reasons:
• Depending on the version of the relay, a particular function and hence its related settings may not
be present, e.g. on a 2 phase-fault and SEF relay any settings related to earth-fault will not be
present.
• Depending on the value of some settings, other settings will be hidden, e.g. if the main
characteristic is set to DTL, rather than an IDMT characteristic, the time multiplier setting will be
hidden and replaced by a time delay setting.
Some settings in the tables show text in square brackets, e.g. ‘[SEF/REF] Current Setting’. This
indicates different text that may be displayed, depending on the value of other settings, i.e. ‘SEF
Current Setting’ or ‘REF Current Setting’ dependent on the value of the ‘Earth Fault Mode Select’
setting.
The second column in the tables (‘Ref’) provides a reference to the section in the Technical Reference
(publication P20007 issue 2004/02) that describes the setting.
The third column is left blank to allow users to complete the table with applied settings.
Setting name
Ref
Set Alarm 2
2.2.5
Applied value
System Config. Menu
Setting name
Ref
Active Settings Group
2.2.1
Set Alarm 3
2.2.5
Settings Group Edit/View
2.2.1
Set Alarm 4
2.2.5
Copy Group
2.2.1
Set Alarm 5
2.2.5
Power System Frequency
2.2.2
Calendar – Set Date
2.2.7
Set Pole B Type
2.2.3
Clock - Set Time
2.2.7
Earth Fault Mode Select
2.2.3
Clock Sync. From Status
2.2.7
P/F Rating (In)
2.2.3
A
Default Screen Timer
2.2.8
E/F Rating (In)
2.2.3
A
Change Password
2.2.9
[SEF/REF] Rating (In)
2.2.3
A
P/F CT Ratio
2.2.3
Setting name
Ref
E/F CT Ratio
2.2.3
Gn P/F Charact. Setting
2.3.1
[SEF/REF] CT Ratio
2.2.3
Gn P/F Charact.
2.3.1
Current Display
2.2.3
Gn P/F Charact. Time Mult
2.3.1
Set Identifier
2.2.4
Gn P/F Charact. Delay
2.3.1
Set Alarm 1
2.2.5
Page 8 of 30
Applied value
Hz
Protection Menu
Applied value
xin
sec
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
Setting name
Ref
xIn
Gn P/F Charact.
2.3.1
2.3.2
sec
Gn P/F Lowset
2.3.2
Gn P/F Highset1 Setting
2.3.2
xIn
Gn P/F Highset1
2.3.2
Gn P/F Highset1 Delay
2.3.2
sec
Gn P/F Highset2
2.3.2
Gn P/F Highset2 Setting
2.3.2
xIn
Gn E/F Starter
2.3.1
Gn P/F Highset2 Delay
2.3.2
sec
Gn E/F Charact.
2.3.1
Gn E/F Charact. Setting
2.3.1
xin
Gn E/F Lowset
2.3.2
Gn E/F Charact.
2.3.1
Gn E/F Highset1
2.3.2
Gn E/F Charact. Time Mult
2.3.1
Gn E/F Highset2
2.3.2
Gn E/F Charact. Delay
2.3.1
sec
Gn [SEF/REF] Starter
2.4
Gn E/F Lowset Setting
2.3.2
xIn
Gn [SEF/REF] Delay1
2.4
Gn E/F Lowset Delay
2.3.2
sec
Gn [SEF/REF] Delay2
2.4
Gn E/F Highset1 Setting
2.3.2
xIn
Gn [SEF/REF] Lowset
2.4
Gn E/F Highset1 Delay
2.3.2
sec
Gn Status 1
2.11
Gn E/F Highset2 Setting
2.3.2
xIn
Gn Status 2
2.11
Gn E/F Highset2 Delay
2.3.2
sec
Gn Status 3
2.11
Gn [SEF/REF] Current Setting
2.4
Gn Status 4
2.11
Gn [SEF/REF] 1st Time Delay
2.4
sec
Gn Status 5
2.11
Gn [SEF/REF 2nd Time Delay
2.4
sec
Gn Status 6
2.11
Gn [SEF/REF] Lowset Delay
2.4
sec
Gn Status 7
2.11
Gn CB Fail Time Delay1
2.5
sec
Gn Status 8
2.11
Gn CB Fail Time Delay2
2.5
sec
Gn Status 9
2.11
Gn P/F CB Fail Setting
2.5
xIn
Gn CB Fail 1
2.5
Gn E/F CB Fail Setting
2.5
xIn
Gn CB Fail 2
2.5
Gn SEF CB Fail Setting
2.5
xIn
Gn CT Failure
2.5.3
Gn CT Failure Setting
2.5.3
xIn
Gn Counter Alarm
2.14.1
Gn CT Failure Delay
2.5.3
sec
Gn ΣI² Alarm
2.14.1
Gn Relay Reset Delay
2.3.3
sec
Gn Power On Count
2.14.3
Gn Hand Reset
2.11
Min O/P Energise Time
2.11
Setting name
Ref
Gn P/F Lowset Setting
2.3.2
Gn P/F Lowset Delay
Applied value
Output Relay Configuration Menu
Applied value
ms
See also Figure 2-1 on page 12 for the programming
matrix.
Setting name
Ref
Gn Prot. Healthy
2.14.3
Gn P/F Starter
2.3.1
Applied value
Status Configuration Menu
See also Figure 2-1 on page 12 for the programming
matrix.
Page 9 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
Setting name
Ref
Settings Group Select
Setting name
Ref
2.2.1
Gn Status 8 D/O Delay
2.11
sec
Inverted Inputs
2.11
Gn Status 9 P/U Delay
2.11
sec
Gn P/F Charact. Inhibit
2.3.1
Gn Status 9 D/O Delay
2.11
sec
Gn P/F Lowset Inhibit
2.3.2
Gn Alarm 1 *
see note below
2.2.5
Gn P/F Highset1 Inhibit
2.3.2
Gn Alarm 2 *
see note below
2.2.5
Gn P/F Highset2 Inhibit
2.3.2
Gn Alarm 3 *
see note below
2.2.5
Gn E/F Charact. Inhibit
2.3.1
Gn Alarm 4 *
see note below
2.2.5
Gn E/F Lowset Inhibit
2.3.2
Gn Alarm 5 *
see note below
2.2.5
Gn E/F HighSet 1 Inhibit
2.3.2
Gn E/F HighSet 2 Inhibit
2.3.2
Gn [SEF/REF] Delay1 Inhibit
2.4
Gn [SEF/REF] Delay2 Inhibit
2.4
Setting name
Ref
Gn [SEF/REF] Lowset Inhibit
2.4
Comms Protocol
4.1.1
Gn Trip Circuit Fail
2.10
IEC Class 2 Measurand
4.2.6
Gn Waveform Trig
2.13.3
Class 2 Update Period
4.2.7
Gn ΣI Update
2.14.1
IEC Class 2 Scaling
4.2.8
Gn Reset Flag & Outputs
2.11
Comms Baud Rate
4.2.9
Gn Clock Sync.
2.2.7
Comms Parity
4.2.10
Gn Status 1 P/U Delay
2.11
sec
Relay Address
4.2.11
Gn Status 1 D/O Delay
2.11
sec
Line Idle
4.2.12
Gn Status 2 P/U Delay
2.11
sec
Data Echo
4.2.13
Gn Status 2 D/O Delay
2.11
sec
Gn Status 3 P/U Delay
2.11
sec
Setting name
Ref
Gn Status 3 D/O Delay
2.11
sec
Gn Fault Trigger
2.13.2
Gn Status 4 P/U Delay
2.11
sec
Gn Waveform Trig
2.13.3
Gn Status 4 D/O Delay
2.11
sec
Gn Waveform Pre-trigger
2.13.3
Gn Status 5 P/U Delay
2.11
sec
Clear All Waveforms
2.13.3
Gn Status 5 D/O Delay
2.11
sec
Clear All Events
2.13.1
Gn Status 6 P/U Delay
2.11
sec
Clear All Faults
2.13.2
Gn Status 6 D/O Delay
2.11
sec
Demand Window Type
2.13.4
Gn Status 7 P/U Delay
2.11
sec
Demand Window
2.13.4
Gn Status 7 D/O Delay
2.11
sec
Maximum Demand Reset
2.13.4
Gn Status 8 P/U Delay
2.11
sec
2
Page 10 of 30
Applied value
Applied value
* The text of these setting names reflects the value
applied to the ‘Set Alarm n’ settings in the ‘System
Config.’ menu.
Comms Interface Menu
Applied value
sec
baud
Data Storage Menu
Applied value
%
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
CB Maintenance Menu
Setting name
Ref
Trip Counter Reset
2.14.1
Trip Counter Alarm
2.14.1
ΣI² Reset
2.14.1
ΣI² Alarm
2.14.1
Power On Count Reset
2.14.3
Power On Count Alarm
2.14.3
O/P Relay Test
2.14.2
Applied value
Page 11 of 30
S1
S2
S3
S4
S5
S6
S7
S8
S9
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
Relay Identifier
Inverted Inputs
Relay Address
Settings Group
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
Pick-up Delay (ms)
Drop-off Delay (ms)
Settings Group
Select
Prot. Healthy
self supervision
P/F Charact Inhib 51 P/F Charact.
time delayed overcurrent
P/F Lowset Inhib 50 P/F Lowset
instantaneous overcurrent
P/F Starter
P/F Charact.
P/F Lowset
P/F Highset 1 Inhib 50 P/F Highset 1
instantaneous overcurrent
P/F Highset 1
P/F Highset 2 Inhib 50 P/F Highset 2
instantaneous overcurrent
P/F Highset 2
E/F Charact Inhib 51N E/F Charact.
time delayed overcurrent
E/F Lowset Inhib 50N E/F Lowset
instantaneous overcurrent
E/F Starter
E/F Charact.
E/F Lowset
E/F Highset 1 Inhib 50N E/F Highset 1
instantaneous overcurrent
E/F Highset 1
E/F Highset 2 Inhib 50N E/F Highset 2
instantaneous overcurrent
E/F Highset 2
SEF Delay 1 Inhib. 50N / 87G SEF/REF
sensitive earth-fault
SEF Delay 2 Inhib. / restricted earth-fault
SEF Lowset Inhib.
SEF Starter
SEF Delay 1
SEF Delay 2
SEF Lowset
Trip Circuit Fail 74TC Trip Circuit Fail
trip circuit supervision
Waveform Trig
Clock Sync
waveform recorder
fault recorder
Fault Trigger
real time clock
50BF CB Fail
Fault Trigger
circuit breaker failure
CB Fail 1/ CB Fail 2
CT Failure
ΣI Update
2
CT Failure Alarm
Counter Alarm
Counter Reset circuit breaker operation counter
ΣI2 Alarm
Status 1
Status 2
Status 3
Status 4
Status 5
Status 6
Status 7
Status 8
Status 9
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Reset Flag & Outputs
output relay control
Hand Reset
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
Min O/P Energise Time
Argus Elements.vsd/AG1
Figure 2-1 Status Input and Output Relay Programming Matrix
Page 12 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
Section 3: IEC 60870-5-103 & Modbus RTU Definitions
3.1
IEC 60870-5-103 DEFINITIONS
The following tables give information on the IEC 60870-5-103 protocol. A detailed description of all
protocol information is available in report no 434/TM/5/13 which can be accessed on the www.reyrolleprotection.com in publications section under technical reports, “communications interface manual”.
Table Showing Function Type Numbers Used
Function Type
Description
160
IEC Overcurrent Protection
164
Reyrolle Overcurrent Protection
254
IEC Generic
255
IEC Global
Cause of Transmission
The cause of transmission (COT) column of the ‘Information Number and Function’ table lists possible
causes of transmission for these frames. The following abbreviations are used:
Table Showing Permitted Cause of Transmission Numbers
Cause of Transmission (COT)
Description
1
Spontaneous Events
2
Cyclic
3
Reset Frame Count Bit (FCB)
4
Reset Communication Unit (CU)
5
Start Restart
6
Power On
7
Test Mode
8
Time Synchronisation
9
General Interrogation
10
Termination of General Interrogation
11
Local Operation
12
Remote Operation
20
Positive Command Acknowledge
21
Negative Command Acknowledge
31
Transmission of Disturbance Data
Information Number and Function
The following tables list information number and function definitions together with a description of the
message and function type and cause of transmission that can result in that message. Not all
definitions are available on all relay types – this is dependent on functionality.
KEY
FUN
INF
TYP
GI
section 7.2.5.2)
COM
section 7.2.5.2)
COT
Function Type (defined in Error! Reference source not found. section 7.2.5.1)
Information Number (defined in Error! Reference source not found. section 7.2.5.2)
ASDU Type (defined in Error! Reference source not found. sections 7.3.1 and 7.3.2)
Event supports General Interrogation x = supported (defined in Error! Reference source not found.
Type of command single (ON only) or double (ON/OFF) (defined in Error! Reference source not found.
Cause of Transmission (defined in Error! Reference source not found. section 7.2.3, table 5)
Page 13 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
DIR
x
Direction of event - Raised Only (RO), Raised/Cleared (RC) or Double Point Travelling, Cleared, Raised or
Unknown (DBI)
Supported,
- Not supported.
Table Showing Command Information (INF) Numbers
INF
160
2
160
Description
GI
TYP
COT
DIR
Reset FCB
-
5
3
RO
x
3
Reset CU
-
5
4
RO
x
160
4
Start/Restart
-
5
5
RO
x
160
5
Power On
-
5
6
RO
x
160
16
ARC in progress
x
1
1, 9, 12, 20, 21
RC
160
19
LEDs reset
-
1
1, 7, 11, 12, 20, 21
RO
x
160
21
Trip Test
x
1
1, 9
RC
x
160
22
Settings changed
x
1
1, 9, 11, 12
RC
x
160
23
Setting G1 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
160
24
Setting G2 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
160
25
Setting G3 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
160
26
Setting G4 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
160
27
Input 1
x
1
1, 9
RC
x
160
28
Input 2
x
1
1, 9
RC
x
160
29
Input 3
x
1
1, 9
RC
x
160
30
Input 4
x
1
1, 9
RC
x
160
36
Trip circuit fail
x
1
1, 9
RC
x
160
46
Group Warning
x
1
1, 9
RC
160
47
Alarm
x
1
1, 9
RO
160
64
A-starter
x
2
1, 9
RC
x
160
65
B-starter
x
2
1, 9
RC
x
160
66
C-starter
x
2
1, 9
RC
x
160
67
E-starter
x
2
1, 9
RC
x
160
68
General trip
-
2
1
RO
x
160
69
A-general trip
-
2
1
RO
x
160
70
B-general trip
-
2
1
RO
x
160
71
C-general trip
-
2
1
RO
x
160
84
General starter
x
2
1, 9
RC
x
160
85
Circuit breaker fail 1
-
2
1
RO
x
Argus 1
FUN
Page 14 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
INF
160
91
160
Description
GI
TYP
COT
DIR
P/F-general HS trip
-
2
1
RO
x
92
E/F-general trip
-
2
1
RO
x
160
93
E/F-general HS trip
-
2
1
RO
x
160
128
CB on by auto reclose
-
1
1
DP
160
130
Reclose blocked
x
1
1, 9
RC
160
144
Measurand I
-
3.1
2,7
-
x
160
148
Measurand IL1,2,3, VL1,2,3, P, Q
-
9
2,7
-
x
164
0
Data lost
-
1
1
RO
x
164
1
A-lowset starter
-
2
1
RC
x
164
2
B-lowset starter
-
2
1
RC
x
164
3
C-lowset starter
-
2
1
RC
x
164
4
E-lowset starter
-
2
1
RC
x
164
5
A-lowset trip
-
2
1
RO
x
164
6
B-lowset trip
-
2
1
RO
x
164
7
C-lowset trip
-
2
1
RO
x
164
8
E-lowset trip
-
2
1
RO
x
164
9
A-delayed trip
-
2
1
RO
x
164
10
B-delayed trip
-
2
1
RO
x
164
11
C-delayed trip
-
2
1
RO
x
164
12
E-delayed trip
-
2
1
RO
x
164
13
A-HS1 trip
-
2
1
RO
x
164
14
B-HS1 trip
-
2
1
RO
x
164
15
C-HS1 trip
-
2
1
RO
x
164
16
E-HS1 trip
-
2
1
RO
x
164
17
A-HS2 trip
-
2
1
RO
x
164
18
B-HS2 trip
-
2
1
RO
x
164
19
C-HS2 trip
-
2
1
RO
x
164
20
E-HS2 trip
-
2
1
RO
x
164
21
SEF/REF starter
x
2
1, 9
RC
x
164
23
SEF/REF lowset trip
-
2
1
RC
x
164
24
SEF/REF stage 1 trip
-
2
1
RC
x
164
25
SEF/REF stage 2 trip
-
2
1
RC
x
164
26
A-HS1 starter
-
2
1
RC
x
164
27
B-HS1 starter
-
2
1
RC
x
Argus 1
FUN
1
1
One of Ia, Ib, Ie, Isef depending on relay type
Page 15 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
INF
164
28
164
Description
GI
TYP
COT
DIR
C-HS1 starter
-
2
1
RC
x
29
E-HS1 starter
-
2
1
RC
x
164
30
A-HS2 starter
-
2
1
RC
x
164
31
B-HS2 starter
-
2
1
RC
x
164
32
C-HS2 starter
-
2
1
RC
x
164
33
E-HS2 starter
-
2
1
RC
x
164
34
Circuit breaker open
x
1
1, 9
RO
164
35
Setting G5 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
164
36
Setting G6 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
164
37
Setting G7 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
164
38
Setting G8 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
164
39
Circuit breaker fail 2
-
2
1
RO
x
164
41
CB close fail
x
1
1, 9
RO
164
43
CB DBI state
x
1
1, 9
RO
164
44
External Trip
-
2
1
RO
x
164
45
Input 5
x
1
1, 9
RC
x
164
46
Input 6
x
1
1, 9
RC
x
164
47
Input 7
x
1
1, 9
RC
x
164
48
Input 8
x
1
1, 9
RC
x
164
49
Input 9
x
1
1, 9
RC
x
164
51
Output 1
x
1
1, 9, 12, 20, 21
RC
x
164
52
Output 2
x
1
1, 9, 12, 20, 21
RC
x
164
53
Output 3
x
1
1, 9, 12, 20, 21
RC
x
164
54
Output 4
x
1
1, 9, 12, 20, 21
RC
x
164
55
Output 5
x
1
1, 9, 12, 20, 21
RC
x
164
56
Output 6
x
1
1, 9, 12, 20, 21
RC
x
164
57
Output 7
x
1
1, 9, 12, 20, 21
RC
x
164
58
Output 8
x
1
1, 9, 12, 20, 21
RC
x
164
59
Output 9
x
1
1, 9, 12, 20, 21
RC
x
164
60
Output 10
x
1
1, 9, 12, 20, 21
RC
x
164
61
Output 11
x
1
1, 9, 12, 20, 21
RC
x
164
62
Forward A
x
2
1, 9
RC
164
63
Reverse A
x
2
1, 9
RC
164
64
Forward B
x
2
1, 9
RC
164
65
Reverse B
x
2
1, 9
RC
164
66
Forward C
x
2
1, 9
RC
Argus 1
FUN
164
67
Reverse C
x
2
1, 9
RC
164
68
Forward E
x
2
1, 9
RC
164
69
Reverse E
x
2
1, 9
RC
Page 16 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
INF
Description
GI
TYP
COT
DIR
164
70
Trip count alarm
x
1
1, 9
RC
x
164
70
Trip count alarm
x
4
1, 9
-
x
164
71
CB maintenance alarm
x
1
1, 9
RC
x
164
71
CB maintenance alarm
x
4
1, 9
-
x
164
72
Frequent operations exceeded
x
1
1, 9
RC
164
73
Delta Trip Counter Alarm
x
1
1, 9
RC
164
79
Voltage Block
x
1
1, 9
RC
164
80
Waveform stored
-
1
1, 12, 20, 21
RO
x
164
81
Remote control interrupted
-
1
1
RO
x
164
82
Trip and Lockout
-
1
1, 12, 20, 21
RO
164
83
Close and Reclaim
-
1
1, 12, 20, 21
RO
164
84
Trip And Reclose
-
1
1, 12, 20, 21
RO
164
85
Circuit breaker closed
x
1
1, 9
RO
164
86
Close And Lockin
-
1
1, 12, 20, 21
RO
164
87
Reclose delay
x
1
1, 9
RC
164
88
Reclaim
x
1
1, 9
RC
164
89
Lockout
x
1
1, 9
RC
164
90
Forward SEF
x
2
1, 9
RC
164
91
Reverse SEF
x
2
1, 9
RC
164
92
Power On Counter Alarm
x
1
1, 9
RC
x
164
97
CT Failure
x
1
1, 9
RC
x
164
100
Cold load pickup
x
1
1, 9, 12, 20, 21
RC
164
101
Cold load trip
-
2
1
RO
164
102
Line check trip
-
2
1
RO
164
103
ARC start A
x
1
1, 9
RC
164
104
A backup time
-
1
1
RC
164
105
A backup trip
-
1
1
RC
164
106
External trip block
x
1
1, 9
RC
164
110
SEF off
x
1
1, 9, 12, 20, 21
RC
164
111
All ARC off
x
1
1, 9
RC
164
112
P/F ARC off
x
1
1, 9, 12, 20, 21
RC
164
113
E/F ARC off
x
1
1, 9, 12, 20, 21
RC
164
114
SEF ARC off
x
1
1, 9, 12, 20, 21
RC
164
115
All inst off
x
1
1, 9, 12, 20, 21
RC
164
116
P/F inst off
x
1
1, 9, 12, 20, 21
RC
164
117
E/F inst off
x
1
1, 9, 12, 20, 21
RC
164
118
SEF inst off
x
1
1, 9, 12, 20, 21
RC
Argus 1
FUN
Page 17 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
INF
Description
GI
TYP
COT
DIR
164
119
Hot line working
x
1
1, 9, 12, 20, 21
RC
164
120
Scada Control
x
1
1, 9
RC
164
121
General alarm 1
x
1
1, 9
RC
x
164
122
General alarm 2
x
1
1, 9
RC
x
164
123
General alarm 3
x
1
1, 9
RC
x
164
124
General alarm 4
x
1
1, 9
RC
x
164
125
General alarm 5
x
1
1, 9
RC
x
164
131
Va/Vab starter
x
2
1, 9
RC
164
132
Vb/Vbc starter
x
2
1, 9
RC
164
133
Vc/Vca starter
x
2
1, 9
RC
164
170
V starter
x
2
1, 9
RC
164
182
V trip
-
2
1
RO
164
190
Voltage Memory A
x
1
1, 9
RC
164
191
Voltage Memory B
x
1
1, 9
RC
164
192
Voltage Memory C
x
1
1, 9
RC
164
240
Ia Fault Current
x
4
1, 9
-
x
164
241
Ib Fault Current
x
4
1, 9
-
x
164
242
Ic Fault Current
x
4
1, 9
-
x
164
243
Ie Fault Current
x
4
1, 9
-
x
164
244
Isef Fault Current
x
4
1, 9
-
x
164
245
Va Fault Voltage
x
4
1, 9
-
164
246
Vb Fault Voltage
x
4
1, 9
-
164
247
Vc Fault Voltage
x
4
1, 9
-
164
248
Vn Fault Voltage
x
4
1, 9
-
255
0
Time Synchronisation
-
6
8
-
x
255
0
End of General Interrogation
-
8
10
-
x
COM
TYP
COT
Argus 1
FUN
Table Showing Command Information (INF) Numbers
INF
Description
160
16
Auto-recloser ON/OFF
ON/OFF
20
20
160
19
Reset Flag & Outputs
ON
20
20
x
160
23
Settings Group 1 Select
ON
20
20
x
Argus 1
FUN
Page 18 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
INF
160
24
160
Description
COM
TYP
COT
Settings Group 2 Select
ON
20
20
x
25
Settings Group 3 Select
ON
20
20
x
160
26
Settings Group 4 Select
ON
20
20
x
164
35
Settings Group 5 Select
ON
20
20
x
164
36
Settings Group 6 Select
ON
20
20
x
164
37
Settings Group 7 Select
ON
20
20
x
164
38
Settings Group 8 Select
ON
20
20
x
164
51
Energise Output 1
ON
20
20
x
164
52
Energise Output 2
ON
20
20
x
164
53
Energise Output 3
ON
20
20
x
164
54
Energise Output 4
ON
20
20
x
164
55
Energise Output 5
ON
20
20
x
164
56
Energise Output 6
ON
20
20
x
164
57
Energise Output 7
ON
20
20
x
164
58
Energise Output 8
ON
20
20
x
164
59
Energise Output 9
ON
20
20
x
164
60
Energise Output 10
ON
20
20
x
164
61
Energise Output 11
ON
20
20
x
164
80
Trigger Waveform Storage
ON
20
20
x
164
82
Trip and Lockout
ON
20
20
164
83
Close and Reclaim
ON
20
20
164
84
Trip And Reclose
ON
20
20
164
86
Close And Lockin
ON/OFF
20
20
164
100
Cold load pickup
ON/OFF
20
20
164
110
SEF
ON/OFF
20
20
164
112
P/F ARC Inhibit
ON/OFF
20
20
164
113
E/F ARC Inhibit
ON/OFF
20
20
164
114
SEF ARC Inhibit
ON/OFF
20
20
164
115
Instantaneous
ON/OFF
20
20
164
116
P/F Instantaneous
ON/OFF
20
20
164
117
E/F Instantaneous
ON/OFF
20
20
164
118
SEF Instantaneous
ON/OFF
20
20
164
119
Hot line working
ON/OFF
20
20
Argus 1
FUN
Page 19 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
INF
Description
COM
TYP
COT
164
129
Reset Energy Meters
ON/OFF
20
20
164
130
Reset Maximum Demand
ON/OFF
20
20
255
0
Initiate General Interrogation
-
7
9
255
0
Time Synchronisation
-
6
8
Argus 1
FUN
x
-
x
x
Note: Events listing a GI cause of transmission can be raised and cleared; other events are raised only.
3.2
MODBUS RTU DEFINITIONS
The following tables give information for MODBUS RTU access to IEC 60870-5-103 protocol data. A
detailed description of all protocol information is available in report no 434/TM/5/13 which can be
accessed on the www.reyrolle-protection.com in publications section under technical reports,
“communications interface manual”.
The tables below detail the MODBUS address map, listing data points that are available and the
functions supported for access. Please note, not all addresses will apply to all models.
To configure MODBUS a new setting has been added to the communications sub-menu to select the
protocol to use, either IEC60870-5-103 or MODBUS-RTU. After selecting MODBUS, set the remaining
parameters, baud rate, parity, station (slave) address, line idle and data echo as appropriate.
When an electrical RS485 module is connected to the Argus relay, the Line Idle and Data Echo
settings must both be set to OFF.
Table showing Coil Addresses
IEC
IEC
Description
COM
FUN
INF
00016
160
16
Autoreclose
ON/OFF
00019
160
19
Reset Flag & Outputs *
ON
x
00023
160
23
Settings Group 1 Select
ON
x
00024
160
24
Settings Group 2 Select
ON
x
00025
160
25
Settings Group 3 Select
ON
x
00026
160
26
Settings Group 4 Select
ON
x
01059
164
35
Settings Group 5 Select
ON
x
01060
164
36
Settings Group 6 Select
ON
x
01061
164
37
Settings Group 7 Select
ON
x
01062
164
38
Settings Group 8 Select
ON
x
01075
164
51
Energise Output 1
ON
x
01076
164
52
Energise Output 2
ON
x
01077
164
53
Energise Output 3
ON
x
01078
164
54
Energise Output 4
ON
x
01079
164
55
Energise Output 5
ON
x
AG 1
MODBUS
Address
Page 20 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
IEC
IEC
Description
COM
FUN
INF
01080
164
56
Energise Output 6
ON
x
01081
164
57
Energise Output 7
ON
x
01082
164
58
Energise Output 8
ON
x
01083
164
59
Energise Output 9
ON
x
01084
164
60
Energise Output 10
ON
x
01085
164
61
Energise Output 11
ON
x
01104
164
80
Trigger Waveform Storage *
ON
x
01106
164
82
Trip and Lockout*
ON
01107
164
83
Close and Reclaim*
ON
01108
164
84
Trip and Reclose*
ON
01110
164
86
Close and Lockin*
ON/OFF
01124
164
100
Cold Load Pickup
ON/OFF
01134
164
110
SEF
ON/OFF
01136
164
112
PF ARC Inhibit
ON/OFF
01137
164
113
EF ARC Inhibit
ON/OFF
01138
164
114
SEF ARC Inhibit
ON/OFF
01139
164
115
Instantaneous
ON/OFF
01140
164
116
P/F Instantaneous
ON/OFF
01141
164
117
E/F Instantaneous
ON/OFF
01142
164
118
SEF Instantaneous
ON/OFF
01143
164
119
Hot Line Working
ON/OFF
01154
164
130
Reset Maximum Demand *
ON
AG 1
MODBUS
Address
Table Showing Inputs
FUN
INF
Description
10016
160
16
Auto Reclose Active
10021
160
21
Trip Test
x
10022
160
22
Settings changed
x
10023
160
23
Setting G1 selected
x
10024
160
24
Setting G2 selected
x
10025
160
25
Setting G3 selected
x
10026
160
26
Setting G4 selected
x
10027
160
27
Input 1
x
10028
160
28
Input 2
x
10029
160
29
Input 3
x
10030
160
30
Input 4
x
AG 1
MODBUS
Address
Page 21 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
FUN
INF
10036
160
36
Trip circuit fail
10046
160
46
Group Warning
10047
160
47
Alarm
10064
160
64
A-starter
x
10065
160
65
B-starter
x
10066
160
66
C-starter
x
10067
160
67
E-starter
x
10084
160
84
General starter
x
10128
160
128
CB on by auto recluse
10130
160
130
Reclose blocked
11045
164
21
SEF/REF starter
11058
164
34
Circuit breaker open
11059
164
35
Setting G5 selected
x
11060
164
36
Setting G6 selected
x
11061
164
37
Setting G7 selected
x
11062
164
38
Setting G8 selected
x
11065
164
41
CB close fail
11067
164
43
CB DBI state
11069
164
45
Input 5
x
11070
164
46
Input 6
x
11071
164
47
Input 7
x
11072
164
48
Input 8
x
11073
164
49
Input 9
x
11075
164
51
Output1
x
11076
164
52
Output2
x
11077
164
53
Output3
x
11078
164
54
Output4
x
11079
164
55
Output5
x
11080
164
56
Output6
x
11081
164
57
Output7
x
11082
164
58
Output8
x
11083
164
59
Output9
x
11084
164
60
Output10
x
11085
164
61
Output11
x
11086
164
62
Forward A
11087
164
63
Reverse A
11088
164
64
Forward B
11089
164
65
Reverse B
11090
164
66
Forward C
11091
164
67
Reverse C
Page 22 of 30
Description
AG 1
MODBUS
Address
x
x
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
FUN
INF
Description
11092
164
68
Forward E
11093
164
69
Reverse E
11094
164
70
Trip count alarm
x
11095
164
71
CB maintenance alarm
x
11096
164
72
Frequent operations exceeded
11097
164
73
Delta Trip Counter Alarm
11103
164
79
Voltage Block
11109
164
85
Circuit breaker closed
11111
164
87
Reclose Delay
11112
164
88
Reclaim
11113
164
89
Lockout
11114
164
90
Forward SEF
11115
164
91
Reverse SEF
11116
164
92
Power On Counter Alarm
x
11121
164
97
CT Failure
x
11124
164
100
Cold load pickup
11127
164
103
ARC start A
11130
164
106
External trip block
11134
164
110
SEF off
11135
164
111
All ARC off
11136
164
112
P/F ARC off
11137
164
113
E/F ARC off
11138
164
114
SEF ARC off
11139
164
115
All inst off
11140
164
116
P/F inst off
11141
164
117
E/F inst off
11142
164
118
SEF inst off
11143
164
119
Hot line working
11144
164
120
Scada Control
11145
164
121
General alarm 1
x
11146
164
122
General alarm 2
x
11147
164
123
General alarm 3
x
11148
164
124
General alarm 4
x
11149
164
125
General alarm 5
x
11155
164
131
Va/Vab starter
11156
164
132
Vb/Vbc starter
11157
164
133
Vc/Vca starter
11194
164
170
V starter
11214
164
190
Voltage Memory A
11215
164
191
Voltage Memory B
AG 1
MODBUS
Address
Page 23 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
FUN
INF
Description
164
192
Voltage Memory C
AG 1
MODBUS
Address
11216
MODBUS
Address
Page 24 of 30
Description
Size
(Words)
Scaling
Units
Scaled
AG 1
Table Showing Input Registers
30001
Number Of Events In Store
1
1
-
x
30002
Latest Event Record
8
-
-
x
30101
IA (PRIMARY)
2
1000
A
x
30103
IB (PRIMARY)
2
1000
A
x
30105
IC (PRIMARY)
2
1000
A
x
30107
IE (PRIMARY)
2
1000
A
x
30109
ISEF/REF (PRIMARY)
2
1000
A
x
30111
Ia (SECONDARY)
2
1000
A
x
30113
Ib (SECONDARY)
2
1000
A
x
30115
Ic (SECONDARY)
2
1000
A
x
30117
Ie (SECONDARY)
2
1000
A
x
30119
Isef/ref (SECONDARY)
2
1000
A
x
30121
Ia (xIn)
2
1000
xIn
x
30123
Ib (xIn)
2
1000
xIn
x
30125
Ic (xIn)
2
1000
xIn
x
30127
Ie (xIn)
2
1000
xIn
x
30129
Isef/ref (xIn)
2
1000
xIn
x
30131
A Direction
8
-
-
30139
B Direction
8
-
-
30147
C Direction
8
-
-
30155
E Direction
8
-
-
30163
Relay Status
8
-
-
30171
Status Inputs
8
-
-
x
30179
Trip Circuit Fail
8
-
-
x
30187
Trip Counter
2
1
-
x
30189
Delta Trip Count
2
1
-
30191
Frequent Operation Counter
2
1
-
30193
Sum of I^2
2
100
MA^2
x
30195
Number of Waveforms
2
1
-
x
30197
Number of Events
2
1
-
x
30199
Number of Faults
2
1
-
x
30201
Time
8
-
-
x
30209
Date
8
-
-
x
30217
Starters
8
-
-
x
30257
General Alarms
8
-
-
x
30265
Power On/Resets
8
-
-
x
30273
ARC Status
8
-
-
x
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
30281
ARC Inhibits
8
-
-
30289
Circuit Breaker
8
-
-
30297
Shot Number
2
1
-
30299
Power On Counter
2
1
-
30301
VA (PRIMARY)
2
1000
V
30303
VB (PRIMARY)
2
1000
V
30305
VC (PRIMARY)
2
1000
V
30307
VN (PRIMARY)
2
1000
V
30309
VAB (PRIMARY)
2
1000
V
30311
VBC (PRIMARY)
2
1000
V
30313
VCA (PRIMARY)
2
1000
V
30315
Va (SECONDARY)
2
1000
V
30317
Vb (SECONDARY)
2
1000
V
30319
Vc (SECONDARY)
2
1000
V
30321
Vn (SECONDARY)
2
1000
V
30323
Vab (SECONDARY)
2
1000
V
30325
Vbc (SECONDARY)
2
1000
V
30327
Vca (SECONDARY)
2
1000
V
30329
3Phase Power
2
1
kW
30331
3Phase Apparent Power
2
1
kVA
30333
3Phase Reactive Power
2
1
kVAr
30335
3Phase Power Factor
8
-
-
30343
Voltage Element
8
-
-
30393
WHr (Forward)
2
1
kWHr
30395
WHr (Reverse)
2
1
kWHr
30397
VArHr (Forward)
2
1
kVArHr
30399
VArHr (Reverse)
2
1
kVArHr
30401
IA (PRIMARY) Demand
2
1000
A
30403
IB (PRIMARY) Demand
2
1000
A
x
30405
IC (PRIMARY) Demand
2
1000
A
x
30407
IA (PRIMARY) Max Demand
2
1000
A
x
30409
IB (PRIMARY) Max Demand
2
1000
A
x
30411
IC (PRIMARY) Max Demand
2
1000
A
x
30413
3Phase Watt Demand
2
1
kW
30415
3Phase VAr Demand
2
1
kVAr
30417
3Phase Watt Max Demand
2
1
kW
30419
3Phase VAr Max Demand
2
1
kVAr
x
x
Table Showing Holding Registers
Description
40001
Set Time
FORMAT
SIZE (WORDS)
AG 1
Address
Time 8
4
x
Page 25 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
Section 4: Application Diagrams
The following pages contain example application diagrams for a variety of connections, showing
various hardware options.
AG1-101, 102
BUSBARS
A
B
C
13
14
15
RL1
RL2
3 +
4 -
S1
RL3
P1
S1
S2
RL7
see note 3
25
26
27
28
1A
E/F
5A
Rear F.O.
comms ports
P1
S1
S2
RL6
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
P2
P2
S1
RL5
S2
P1
RL4
P2
Notes
1.
CT circuits are shown
connected to 1A inputs - use 5A
inputs for 5A rated CTs.
2.
CT and earth connections are
typical only.
3.
Diagram shows use of residual
(Holm green) connection for E/F
circuit. Alternatively use a ring-core
CT.
4.
Rear RS485 port is an ordering
option. On the last Relay on the bus
only, connect wire link as shown to
include 120 ohm terminating resistor
in circuit.
Tx
Rx
Rear RS485
comms port
120 Ω
A
B
Term
see note 4
Screen
P300001 Argus 1 Connection Diagrams / AG1-101,102
Figure 4-1 Typical Connection for Earth-fault Protection
Page 26 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
A
B
Notes
1.
CT circuits are shown
connected to 1A inputs - use 5A
inputs for 5A rated CTs.
2.
CT and earth connections
are typical only.
3.
Diagram shows use of SEF/
REF as an SEF input. Use of the
input for high-impedance REF
requires an additional sett ing
resistor, and may also require a
metrosil.
4.
Rear RS485 port is an
ordering option. On the last Relay
on the bus only, connect wire link
as shown to include 120 ohm
terminating resistor in circuit.
AG1-103, 104
BUSBARS
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
3 +
4 -
S1
RL3
RL4
RL5
RL6
Rear F.O.
comms ports
RL7
P1
see note 3
S1
S2
25
26
27
28
1A
SEF
5A
Tx
Rear RS485
comms port
Rx
120 Ω
P2
A
B
Term
see note 4
Screen
P300001 Argus 1 Connection Diagrams / AG1-103,104
Figure 4-2 Typical Connection for Sensitive Earth-fault Protection
AG1-3x1, 3x2
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
53
54
55
56
49
50
51
52
45
46
47
48
P2
S2
P1
S1
S2
P2
P2
S2
S1
P1
3 +
4 -
S1
RL3
RL4
1A
A
5A
RL5
RL6
1A
B
5A
1A
C
5A
RL7
S2
S3
S4
Rear RS485
comms port
120 Ω
Tx
A
B
Term
Rx
see note 5
Rear F.O.
comms ports
S5
RL8
RL9
RL10
RL11
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 3
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
Notes
1.
CT circuits are shown
connected to 1A inputs - use
5A inputs for 5A rated CTs.
2.
CT and earth connections
are typical only.
3.
Optional expansion card,
fitted only on models AG1-311
and AG1-312.
4.
Optional expansion card,
fitted only on models AG1-321
and AG1-322.
5.
Rear RS485 port is an
ordering option. On the last
Relay on the bus only, connect
wire link as shown to include
120 ohm terminating resistor in
circuit.
see note 4
Screen
P300001 Argus 1 Connection Diagrams / AG1-3x1,3x2 1
Figure 4-3 Typical Connection for 3 Phase-fault Protection
Page 27 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
AG1-3x1, 3x2
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S2
S1
P1
S2
S1
53
54
55
56
49
50
51
52
45
46
47
48
25
P2
P2
P2
S2
S1
P1
3 +
4 -
see note 3
S1
RL3
RL4
1A
A
5A
RL5
RL6
1A
E/F
5A
RL7
1A
+
+
+
+
-
S2
C
5A
S3
S4
Rear F.O.
comms ports
S5
Tx
Rear RS485
comms port
120 Ω
Rx
A
B
RL8
RL9
RL10
RL11
see note 4
see note 6
Term
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
+
+
+
+
+
+
+
+
-
S2
S3
S4
S5
S6
S7
S8
S9
Notes
1.
CT circ uits are shown
connected to 1A inputs - use
5A inputs for 5A rated CTs.
2.
CT and earth connections
are typical only.
3.
Diagram shows use of
residual (Holmgreen)
connec tion for E/F circuit.
Alternatively use a ring-core
CT.
4.
Optional expansion card,
fitted only on models AG1-311
and AG1-312.
5.
Optional expansion card,
fitted only on models AG1-321
and AG1-322.
6.
Rear RS485 port is an
ordering option. On the last
Relay on the bus only, connect
wire link as shown to include
120 ohm terminating resistor in
circuit.
see note 5
Screen
P300001 Argus 1 Connection Diagrams / AG1-3x1,3x2 2
Figure 4-4 Typical Connection for 2 Phase-fault and Earth-fault Protection
AG1-3x3, 3x4
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
53
54
55
56
S1
RL4
1A
A
5A
RL5
S2
RL6
RL7
P1
S1
see note 3
S2
45
46
47
48
25
26
27
28
1A
C
S3
1A
S4
SEF
5A
S5
Rear RS485
comms port
Rx
Rear F.O.
comms ports
Tx
S2
5A
P2
120 Ω
RL3
P2
P2
S2
S1
P1
3 +
4 -
RL8
RL9
RL10
RL11
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
Notes
1.
CT circuits are shown
connected to 1A inputs - use
5A inputs for 5A rated CTs.
2.
CT and earth connections
are typical only.
3.
Diagram shows use of
SEF/REF as an SEF input. Use
of the input for high-impedance
REF requires an additional
setting resistor, and may also
require a metrosil.
4.
Optional expansion card,
fitted only on models AG1-313
and AG1-314.
5.
Optional expansion card,
fitted only on models AG1-323
and AG1-324.
6.
Rear RS485 port is an
ordering option. On the last
Relay on the bus only, connect
wire link as shown to include
120 ohm terminating resistor in
circuit.
A
B
Term
see note 4
see note 5
see note 6
Screen
P300001 Argus 1 Connection Diagrams / AG1-3x3,3x4
Figure 4-5 Typical Connection for 2 Phase-fault and Sensitive Earth-fault Protection
Page 28 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
AG1-4x1, 4x2
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
see note 3
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
120 Ω
A
5A
B
5A
1A
C
B
RL7
S3
1A
S4
E/F
S5
RL8
RL9
RL10
RL11
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 4
see note 6
Term
+
+
+
+
-
S2
5A
5A
A
RL5
RL6
1A
Rx
RL3
RL4
1A
Tx
Rear RS485
comms port
S1
Rear F.O.
comms ports
P1
S2
S1
P1
S1
S2
P2
P2
P2
S2
S1
P1
3 +
4 -
S2
S3
S4
S5
S6
S7
S8
S9
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
+
+
+
+
+
+
+
+
-
Notes
1.
CT circuits are shown
connected to 1A inputs - use
5A inputs for 5A rated CTs.
2.
CT and earth connections
are typical only.
3.
Diagram shows use of
residual (Holmgreen)
connection for E/F circuit.
Alternatively use a ring-core
CT.
4.
Optional expansion card,
fitted only on models AG1-411
and AG1-412.
5.
Optional expansion card,
fitted only on models AG1-421
and AG1-422.
6.
Rear RS485 port is an
ordering option. On the last
Relay on the bus only, connect
wire link as shown to include
120 ohm terminating resistor in
circuit.
see note 5
Screen
P300001 Argus 1 Connection Diagrams / AG1-4x1,4x2
Figure 4-6 Typical Connection for 3 Phase-fault and Earth-fault Protection
AG1-4x3, 4x4
BUSBARS
A B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
P2
S2
P1
S1
S2
P2
P2
S2
S1
P1
3 +
4 -
P1
S1
see note 3
S2
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
S1
RL4
1A
A
5A
E/F
5A
1A
C
120 Ω
Rx
RL7
S2
5A
S3
1A
S4
SEF
5A
S5
Rear F.O.
comms ports
Rear RS485
comms port
RL5
RL6
1A
P2
Tx
RL3
RL8
RL9
RL10
RL11
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
Notes
1.
CT circuits are shown
connected to 1A inputs - use
5A inputs for 5A rated CTs.
2.
CT and earth connections
are typical only.
3.
Application shows use of
SEF/REF as an SEF input. Use
of the input for high-impedance
REF requires an additional
setting resistor, and may also
require a metrosil.
4.
Optional expansion card,
fitted only on models AG1-413
and AG1-414.
5.
Optional expansion card,
fitted only on models AG1-423
and AG1-424.
6.
Rear RS485 port is an
ordering option. On the last
Relay on the bus only, connect
wire link as shown to include
120 ohm terminating resistor in
circuit.
A
B
Term
see note 4
see note 5
see note 6
Screen
P300001 Argus 1 Connection Diagrams / AG1-4x3,4x4 1
Figure 4-7 Typical Connection for 2 Phase-fault, Earth-fault and Sensitive Earth-fault
Protection
Page 29 of 30
Numerical Multi-Function Overcurrent Protection Relay
P20008 issue 2004/05
AG1-4x3, 4x4
BUSBARS
A
B
C
13
14
15
RL1
RL2
P1
P1
S1
S2
S1
S2
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
P2
P2
P2
S2
S1
P1
3 +
4 -
P1
S1
see note 3
S2
S1
RL3
RL4
1A
A
RL5
5A
RL6
1A
B
RL7
5A
1A
S2
C
5A
S3
1A
S4
SEF
5A
S5
P2
Rear RS485
comms port
120 Ω
Rx
+
+
+
+
-
RL8
Rear F.O.
comms ports
Tx
Notes
1.
CT circuits are shown
connected to 1A inputs - use
5A inputs for 5A rated CTs.
2.
CT and earth connections
are typical only.
3.
Application shows use of
SEF/REF as an SEF input. Use
of the input for high-impedance
REF requires an additional
setting resistor, and may also
require a metrosil.
4.
Optional expansion card,
fitted only on models AG1-413
and AG1-414.
5.
Optional expansion card,
fitted only on models AG1-423
and AG1-424.
6.
Rear RS485 port is an
ordering option. On the last
Relay on the bus only, connect
wire link as shown to include
120 ohm terminating resistor in
circuit.
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL9
RL10
RL11
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
A
B
Term
see note 4
see note 5
see note 6
Screen
P300001 Argus 1 Connection Diagrams / AG1-4x3,4x4 2
Figure 4-8 Typical Connection for 3 Phase-fault and Sensitive Earth-fault Protection
AG1-43x
BUSBARS
A
B
C
Notes
13
14
15
RL1
RL2
P1
S1
S2
27
28
1A
25
26
1A
B
23
24
1A
C
9
10
2. CT and earth connections are typical only.
18
17
16
RL4
11
12
RL5
19
20
A
see note 3
21
22
1A
E/F
Rear F.O.
comms ports
P1
S1
S2
see note 1
1. CT circuits are shown connected to 1A inputs.
Relays rated for 5A CTs use the same terminal
numbers and are an ordering option.
3. Diagram shows use of residual (Holmgreen)
connection for E/F circuit. Alternatively use a ringcore CT.
4.
Status inputs S2 and S3 have a common
(terminal 4) negative supply input.
5.
Rear RS485 port is an ordering option. On
the last Relay on the bus only, connect wire link as
shown to include 120 ohm terminating resistor in
circuit.
P2
P2
P2
S2
S1
P1
RL3
8
6
7
Tx
Rear RS485
comms port
Rx
120 Ω
A
B
1 +
2 -
Term
S1
see note 5
Screen
3 +
see note 4
5 +
4 -
S2
S3
A
C
B
Phase rotation
P300001 Argus 1 Connection Diagrams / AG1-43x - 1A Version
Figure 4-9 Typical Connection for 3 Phase-fault and Earth-fault Protection – 1A or 5A Version
Page 30 of 30
Diagrams and Parameters
Argus 2
P20009 issue 2004/05
DOCUMENTATION SET
This document is part of a set. The full list of documents in the set, and the publication numbers under
which they can be ordered, is given below. These documents can be provided on request to VA TECH
Reyrolle ACP Ltd. on +44 191 401 1111. They can also be found on our website at
www.reyrolle-protection.com.
Argus Overcurrent Protection Relays
Complete Product Documentation set
P1001
•
•
•
•
•
•
P20006 issue 2004/05
P20007 issue 2004/05
P20008 issue 2004/05
P20009 issue 2004/05
P20010 issue 2002/12
P20011 issue 2002/12
Argus User Manual
Argus Overcurrent Technical Reference
Argus 1 Diagrams and Parameters
Argus 2 Diagrams and Parameters
Argus 4 Diagrams and Parameters
Argus 6 Diagrams and Parameters
The copyright and other intellectual property rights in this document, and in any model or article produced from it (and including
any registered or unregistered design rights) are the property of VA TECH Reyrolle ACP Limited. No part of this document shall
be reproduced or modified or stored in another form, in any data retrieval system, without the permission of VA TECH Reyrolle
ACP Limited, nor shall any model or article be reproduced from this document unless VA TECH Reyrolle ACP Limited consent.
While the information and guidance given in this document is believed to be correct, no liability shall be accepted for any loss or
damage caused by any error or omission, whether such error or omission is the result of negligence or any other cause. Any
and all such liability is disclaimed.
P20009 issue 2004/05
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
DOCUMENT RELEASE HISTORY
This document is issue 2004/05. The list of revisions up to and including this issue is:
2004/05
Second issue: Addition of CBF, Demand metering settings and Modbus RTU
protocol
2002/12
First issue
Page 2 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
SOFTWARE RELEASE HISTORY
The software listed below is used in one of more types of Argus relay. The list of software revisions
applying to Argus 2, up to and including this document issue is:
April 2004
2434H80023 R6
Minor change:
Jan 2004
2434H80023 R5
Additional features: Modbus added
Min P/F, E/F settings now 0.05 x In
Additional features: CT Failure function added
Minor change:
Sep 2003
2434H80023 R4
Mar 2003
2434H80023 R3
IEC60870 Class 2 measurands
Additional features: CBF Level detectors added
Minor change:
DTL timers extended to 5 minutes
Minor change:
Time synch via IEC870
Nov 2002
2434H80023 R2
Minor change:
communications with ReyDisp
Jun 2002
2434H80023 R1
Minor change:
power on alarm added
Feb 2002
2434H80022 R3
Additional features: CB fail (all models).
Oct 2001
2434H80022 R2
Additional features: external trip via status input.
Minor change:
Feb 2001
2434H80022 R1
SEF 2nd stage can be disabled.
Additional features: general alarms, status input inversion, resettable
instruments, output relay pulse length setting, 10
second delay on trip test.
Additional features: CB fail, trip circuit supervision (single-pole
models).
Apr 2000
2434H80021 R6
Additional features: New model variants
Jan 2000
2434H80021 R5
Minor change:
current meter averaging.
status group select
Jul 1999
2434H80021 R4
Minor change:
May 1999
2434H80021 R3
Additional features: default instruments
Mar 1998
2434H80020 R1
Additional features: new expansion board (8SI).
Additional features: clock synchronisation using status input
Additional features: new directional SEF model and -90°
characteristic angle available for E/F and SEF
Sep 1997
2434H80019 R4
Minor change:
settings displayed in ReyDisp
Jul 1997
2434H80019 R3
Additional features: status input pick-up and drop-off delays added.
Additional features: CB fail, trip circuit supervision (all expanded I/O
models).
Apr 1997
2434H80018 R2
Minor change:
separate settings for P/F, E/F and SEF current
ratings.
Minor change:
sum of I2 setting range.
First release
Argus 2-5xx software release history
April 2004
2434H80040 R4
Minor change:
Jan 2004
2434H80040 R3
Additional Features: Added CT Failure functionality
Min P/F, E/F settings now 0.05 x In
Maximum Demand Added for Ia, Ib, Ic, W, Vars
General Alarms added to scrolling fault screen
Settings added to configure the IEC60870
class2 measurands
Added WHr and VArHr meters.
Add setting to configure sign convention for
export/import of power.
Vb and Vn now displayed in fault screens in
3P+SEF variant.
Vop can change setting group when starter is
energised.
Page 3 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
MODBUS added.
Added Ia,Ib,Ic,Ie,Isef,Va,Vb,Vc,Vn ASDU4
measurands for fault information.
Timers extended to 300s
CBF Level detectors added
Jul 2003
2434H80040 R2
Minor change:
Apr 2003
2434H80040 R1
First Release
Page 4 of 35
Sampling buffer modified
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
HARDWARE RELEASE HISTORY
The Argus hardware is used in many different relays. The list of hardware revisions applying to Argus
2, up to and including this document issue is:
Dec 2002
Additional features:
Mar 2002
Appearance change: modification to grey fascia design – logo, dark grey band, buttons and label.
introduction of new models with star connected VTs
Jan 2002
External change:
Jul 1999
Appearance change: introduction of grey fascia design to replace existing black fascia.
Jul 1999
External change:
introduction of Epsilon case and terminal blocks
Mar 1998
Additional features:
introduction of new expansion board (8SI).
Apr 1997
First release
SMA fibre-optic connectors replaced by STTM (BFOC/2.5) by default.
Page 5 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
CONTENTS
Documentation Set.................................................................................................................................1
Document Release History ....................................................................................................................2
Software Release History ......................................................................................................................3
Hardware Release History .....................................................................................................................5
Contents ..................................................................................................................................................6
List of Figures.........................................................................................................................................6
Section 1: Variants .................................................................................................................................7
Section 2: Settings .................................................................................................................................8
Section 3: IEC 60870-5-103 & Modbus RTU Definitions ...................................................................15
3.1 IEC 60870-5-103 Definitions ...................................................................................................15
3.2 Modbus RTU Definitions .........................................................................................................22
Section 4: Application Diagrams ........................................................................................................28
LIST OF FIGURES
Figure 2-1
Figure 4-1
Figure 4-2
Figure 4-3
Figure 4-4
Figure 4-5
Figure 4-6
Figure 4-7
Figure 4-8
Figure 4-9
Figure 4-10
Figure 4-11
Figure 4-12
Figure 4-13
Figure 4-14
Page 6 of 35
Status Input and Output Relay Programming Matrix .........................................................14
Typical Connection for Directional Earth-fault Protection ..................................................28
Typical Connection for Directional Sensitive Earth-fault Protection ..................................29
Typical Connection for 3 Directional Phase-fault Protection .............................................29
Typical Connection for 2 Directional Phase-fault and Sensitive Earth-fault
Protection ...........................................................................................................................30
Typical Connection for 2 Directional P/F and Directional E/F Protection ..........................30
Typical Connection for 2 Phase-fault and Directional Earth-fault Protection.....................31
Typical Connection for 3 Directional P/F and Directional E/F Protection ..........................31
Typical Connection for 3 Directional Phase-fault and Sensitive Earth-fault
Protection ...........................................................................................................................32
Typical Connection for 3 Phase-fault and Directional Earth-fault Protection.....................32
Typical Connection of Type AG2-5xx Dir P/F and Dir E/F with Starconnected VT .....................................................................................................................33
Typical Connection of Type AG2-5xx Dir P/F and Dir E/F with Open-delta VT.................33
Typical Connection of Type AG2-5xx Dir P/F and SEF with Star-connected
VT.......................................................................................................................................34
Typical Connection of Type AG2-5xx Dir P/F Dir E/F and SEF with Starconnected VT .....................................................................................................................34
Typical Connection of Type AG2-5xx Dir P/F, Dir E/F and SEF with Opendelta VT..............................................................................................................................35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Section 1: Variants
This document applies to the Argus relays listed in the following table.
The table uses two references for most relays, each of which is valid:
• an ‘Order code’ of the form AGn-nnn, and
• a ‘Type’ of the form DCDnnnX
where n is a digit and X is a letter.
Protection
Directional earth-fault
Directional sensitive earth-fault
3 directional phase-fault
2 directional phase-fault and SEF
2 directional phase-fault and
directional earth-fault
2 phase-fault and dir’n. earth-fault
3 directional phase-fault and
directional earth-fault
3 directional phase-fault and SEF
3 phase-fault and
directional earth-fault
Order code / Type
Application
Diagram
I/O
Fig. 4-1
1 SI
7 OR
Fig. 4-2
1 SI
7 OR
Fig. 4-3
Fig. 4-4
Fig. 4-5
Fig. 4-6
Fig. 4-7
Fig. 4-8
Fig. 4-9
30/48 aux.
30V status
48V status
110/220 aux.
48V status
110V status
220V status
DCD211A
AG2-101
DCD213A
AG2-102
DCD214A
DCD215A
DCD216A
DCD221A
AG2-103
DCD223A
AG2-104
DCD224A
DCD225A
DCD226A
5 SI
11 OR DCD611B
AG2-311
DCD613B
AG2-312
DCD614B
DCD615B
DCD616B
9 SI
7 OR
DCD611C
AG2-321
DCD613C
AG2-322
DCD614C
DCD615C
DCD616C
5 SI
11 OR DCD621B
AG2-313
DCD623B
AG2-314
DCD624B
DCD625B
DCD626B
9 SI
7 OR
DCD621C
AG2-323
DCD623C
AG2-324
DCD624C
DCD625C
DCD626C
5 SI
11 OR DCD631B
AG2-315
DCD633B
AG2-316
DCD634B
DCD635B
DCD636B
9 SI
7 OR
DCD631C
AG2-325
DCD633C
AG2-326
DCD634C
DCD635C
DCD636C
5 SI
11 OR DCD641B
AG2-317
DCD643B
AG2-318
DCD644B
DCD645B
DCD646B
9 SI
7 OR
DCD641C
AG2-327
DCD643C
AG2-328
DCD644C
DCD645C
DCD646C
5 SI
11 OR DCD811B
AG2-411
DCD813B
AG2-412
DCD814B
DCD815B
DCD816B
9 SI
7 OR
DCD811C
AG2-421
DCD813C
AG2-422
DCD814C
DCD815C
DCD816C
5 SI
11 OR DCD821B
AG2-413
DCD823B
AG2-414
DCD824B
DCD825B
DCD826B
9 SI
7 OR
DCD821C
AG2-423
DCD823C
AG2-424
DCD824C
DCD825C
DCD826C
5 SI
11 OR DCD831B
AG2-415
DCD833B
AG2-416
DCD834B
DCD835B
DCD836B
9 SI
7 OR
AG2-426
DCD834C
DCD831C
AG2-425
DCD833C
DCD835C
DCD836C
3 directional phase-fault and
directional earth-fault
Fig. 4-10
under/overvoltage
Fig. 4-11
Voltage and power measurements
5 SI
11 OR DCD911B
AG2-511
DCD913B
AG2-512
DCD914B
DCD915B
DCD916B
9 SI
7 OR
AG2-521
DCD913C
AG2-522
DCD914C
DCD915C
DCD916C
3 dir’n. phase-fault and SEF, or
2 dir’n. P/F, dir’n. E/F and SEF
Fig. 4-12 to
and under/overvoltage
Fig. 4-14
Voltage and power measurements
5 SI
DCD921B
11 OR
AG2-513
DCD923B
AG2-514
DCD924B
DCD925B
DCD926B
AG2-523
DCD923C
AG2-524
DCD924C
DCD925C
DCD926C
9 SI
7 OR
DCD911C
DCD921C
Page 7 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Section 2: Settings
Relay Type
Serial Number
Substation
Feeder Identity
Notes on Tables
All settings found in the Argus 2 relay types are listed below. Within the list some settings (indicated
with greyed cells) are not always visible, for the following reasons:
• Depending on the version of the relay, a particular function and hence its related settings may not
be present, e.g. on a 2 phase-fault and SEF relay any settings related to earth-fault will not be
present.
• Depending on the value of some settings, other settings will be hidden, e.g. if the main
characteristic is set to DTL, rather than an IDMT characteristic, the time multiplier setting will be
hidden and replaced by a time delay setting.
Some settings in the tables show text in square brackets, e.g. ‘[SEF/REF] Current Setting’. This
indicates different text that may be displayed, depending on the value of other settings, i.e. ‘SEF
Current Setting’ or ‘REF Current Setting’ dependent on the value of the ‘Earth Fault Mode Select’
setting.
The second column in the tables (‘Ref’) provides a reference to the section in the Technical Reference
(publication P20007 issue 2004/02) that describes the setting.
The third column is left blank to allow users to complete the table with applied settings.
System Config. Menu
Ref
VT Secondary
2.2.3
Setting name
Ref
Active Settings Group
2.2.1
Current Display
2.2.3
Settings Group Edit/View
2.2.1
Export Power/Lag VAr Sign
2.2.3
Copy Group
2.2.1
Set Identifier
2.2.4
Power System Frequency
2.2.2
Set Alarm 1
2.2.5
Set Pole B Type
2.2.3
Set Alarm 2
2.2.5
Earth Fault Mode Select
2.2.3
Set Alarm 3
2.2.5
Phase Rotation
2.2.3
Set Alarm 4
2.2.5
P/F Rating (In)
2.2.3
A
Set Alarm 5
2.2.5
E/F Rating (In)
2.2.3
A
FWD Name Tag
2.2.6
[SEF/REF] Rating (In)
2.2.3
A
REV Name Tag
2.2.6
P/F CT Ratio
2.2.3
Calendar – Set Date
2.2.7
E/F CT Ratio
2.2.3
Clock - Set Time
2.2.7
[SEF/REF] CT Ratio
2.2.3
Clock Sync. From Status
2.2.7
VT Connection
2.2.3
Default Screen Time
2.2.8
VT Primary
2.2.3
Change Password
2.2.9
Page 8 of 35
Applied value
Setting name
Hz
Applied value
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Protection Menu
Setting name
Ref
For non-directional settings use the Gn[F] settings,
ignoring the forward (F) notation.
GnR E/F Charact. Time Mult
2.3.1
GnR E/F Charact. Delay
2.3.1
Gn E/F Lowset Dir Control
2.3.2
Gn[F] E/F Lowset Setting
2.3.2
xIn
Applied value
Applied value
Setting name
Ref
Gn P/F Charact. Dir Control
2.3.1
Gn[F] P/F Charact. Setting
2.3.1
Gn[F] P/F Charact.
2.3.1
Gn[F] E/F Lowset Delay
2.3.2
sec
Gn[F] P/F Charact. Time Mult
2.3.1
GnR E/F Lowset Setting
2.3.2
xIn
Gn[F] P/F Charact. Delay
2.3.1
sec
GnR E/F Lowset Delay
2.3.2
sec
GnR P/F Charact. Setting
2.3.1
xin
Gn E/F Highset1 Dir Control
2.3.2
GnR P/F Charact.
2.3.1
Gn[F] E/F Highset1 Setting
2.3.2
xIn
GnR P/F Charact. Time Mult
2.3.1
Gn[F] E/F Highset1 Delay
2.3.2
sec
GnR P/F Charact. Delay
2.3.1
GnR E/F Highset1 Setting
2.3.2
xIn
Gn P/F Lowset Dir Control
2.3.2
GnR E/F Highset1 Delay
2.3.2
sec
Gn[F] P/F Lowset Setting
2.3.2
xIn
Gn E/F Highset2 Dir Control
2.3.2
Gn[F] P/F Lowset Delay
2.3.2
sec
Gn[F] E/F Highset2 Setting
2.3.2
xIn
GnR P/F Lowset Setting
2.3.2
xIn
Gn[F] E/F Highset2 Delay
2.3.2
sec
GnR P/F Lowset Delay
2.3.2
sec
GnR E/F Highset2 Setting
2.3.2
xIn
Gn P/F Highset1 Dir Control
2.3.2
GnR E/F Highset2 Delay
2.3.2
sec
Gn[F] P/F Highset1 Setting
2.3.2
xIn
Gn SEF/REF Dir Control
2.4
xIn
Gn[F] P/F Highset1 Delay
2.3.2
sec
Gn[F] SEF/REF Current Setting 2.4
xIn
GnR P/F Highset1 Setting
2.3.2
xIn
Gn[F] SEF/REF 1st Time Delay 2.4
sec
GnR P/F Highset1 Delay
2.3.2
sec
Gn[F] SEF/REF 2nd Time
Delay
2.4
sec
Gn P/F Highset2 Dir Control
2.3.2
Gn[F] SEF/REF Lowset Delay
2.4
sec
Gn[F] P/F Highset2 Setting
2.3.2
xIn
GnR SEF/REF Current Setting
2.4
xIn
Gn[F] P/F Highset2 Delay
2.3.2
sec
GnR SEF/REF 1st Time Delay
2.4
sec
GnR P/F Highset2 Setting
2.3.2
xIn
GnR SEF/REF 2nd Time Delay 2.4
sec
GnR P/F Highset2 Delay
2.3.2
sec
GnR SEF/REF Lowset Delay
2.4
sec
Gn E/F Charact. Dir Control
2.3.1
Gn CB Fail Time Delay1
2.5
sec
Gn[F] E/F Charact. Setting
2.3.1
Gn CB Fail Time Delay2
2.5
sec
Gn[F] E/F Charact.
2.3.1
Gn P/F CB Fail Setting
2.5
xIn
Gn[F] E/F Charact. Time Mult
2.3.1
Gn E/F CB Fail Setting
2.5
xIn
Gn[F] E/F Charact. Delay
2.3.1
sec
Gn SEF CB Fail Setting
2.5
xIn
GnR E/F Charact. Setting
2.3.1
xin
Gn CT Failure Setting
2.5.3
xIn
GnR E/F Charact.
2.3.1
Gn CT Failure Delay
2.5.3
sec
xin
sec
xin
sec
Page 9 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Setting name
Ref
Gn Relay Reset Delay
2.3.3
Applied value
sec
Directional Menu
Setting name
Ref
Gn 2-Out-Of-3 Gate Logic
2.7
Gn P/F Charact. Angle
2.7
Gn E/F Charact. Angle
2.7
Gn SEF Charact. Angle
2.7
Voltage Memory
2.7.3
Applied value
Voltage Menu
Setting name
Ref
Gn[F] E/F Starter
2.3.1
GnR E/F Starter
2.3.1
Gn[F] E/F Charact.
2.3.1
GnR E/F Charact.
2.3.1
Gn[F] E/F Lowset
2.3.2
GnR E/F Lowset
2.3.2
Gn[F] E/F Highset1
2.3.2
GnR E/F Highset1
2.3.2
Gn[F] E/F Highset2
2.3.2
GnR E/F Highset2
2.3.2
Gn[F] SEF/REF Starter
2.4
Argus 2 type 2 only
Setting name
Ref
Applied value
Gn V Operation
2.8
Gn[F] SEF/REF Delay 1
2.4
Gn V[ph-n/ph-ph] Setting
2.8
Gn[F] SEF/REF Delay 2
2.4
Gn V Delay
2.8
Gn[F] SEF/REF Lowset
2.4
Gn V Hysteresis
2.8
GnR SEF/REF Starter
2.4
V Block Threshold
2.8
GnR SEF/REF Delay 1
2.4
V O/P Phases
2.8
GnR SEF/REF Delay 2
2.4
GnR SEF/REF Lowset
2.4
Gn P/F FWD Block
2.7
Gn P/F REV Block
2.7
Gn [E/F / SEF] FWD Block
2.7
Output Relay Configuration Menu
See also Figure 2-1 on page 14 for the programming
matrix. For non-directional settings use the Gn[F]
settings, ignoring the forward (F) notation.
Setting name
Ref
Gn Prot. Healthy
2.14.3
Gn [E/F / SEF] REV Block
2.7
Gn[F] P/F Starter
2.3.1
Gn V Starter
2.8
GnR P/F Starter
2.3.1
Gn V Trip
2.8
Gn[F] P/F Charact.
2.3.1
Gn V Block Alarm
2.8
GnR P/F Charact.
2.3.1
Gn Status 1
2.11
Gn[F] P/F Lowset
2.3.2
Gn Status 2
2.11
GnR P/F Lowset
2.3.2
Gn Status 3
2.11
Gn[F] P/F Highset1
2.3.2
Gn Status 4
2.11
GnR P/F Highset1
2.3.2
Gn Status 5
2.11
Gn[F] P/F Highset2
2.3.2
Gn Status 6
2.11
GnR P/F Highset2
2.3.2
Gn Status 7
2.11
Gn Status 8
2.11
Page 10 of 35
Applied value
Applied value
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Setting name
Ref
Gn Status 9
Applied value
Setting name
Ref
2.11
Gn Status 1 P/U Delay
2.11
sec
Gn CB Fail 1
2.5
Gn Status 1 D/O Delay
2.11
sec
Gn CB Fail 2
2.5
Gn Status 2 P/U Delay
2.11
sec
Gn CT Failure
2.5.3
Gn Status 2 D/O Delay
2.11
sec
Gn Counter Alarm
2.14.1
Gn Status 3 P/U Delay
2.11
sec
Gn ΣI² Alarm
2.14.1
Gn Status 3 D/O Delay
2.11
sec
Gn PowerOn Count
2.14.3
Gn Status 4 P/U Delay
2.11
sec
Gn Hand Reset
2.11
Gn Status 4 D/O Delay
2.11
sec
Min O/P Energise Time
2.11
Gn Status 5 P/U Delay
2.11
sec
Gn Status 5 D/O Delay
2.11
sec
Gn Status 6 P/U Delay
2.11
sec
Gn Status 6 D/O Delay
2.11
sec
Gn Status 7 P/U Delay
2.11
sec
Gn Status 7 D/O Delay
2.11
sec
Gn Status 8 P/U Delay
2.11
sec
Gn Status 8 D/O Delay
2.11
sec
Gn Status 9 P/U Delay
2.11
sec
Gn Status 9 D/O Delay
2.11
sec
ms
Status Configuration Menu
See also Figure 2-1 on page 14 for the programming
matrix.
Setting name
Ref
Settings Group Select
2.2.1
Inverted Inputs
2.11
Gn P/F Charact. Inhibit
2.3.1
Gn P/F Lowset Inhibit
2.3.2
Gn P/F Highset1 Inhibit
2.3.2
Gn P/F Highset2 Inhibit
2.3.2
Gn E/F Charact. Inhibit
2.3.1
Gn E/F Lowset Inhibit
2.3.2
Gn E/F HighSet 1 Inhibit
2.3.2
Gn E/F HighSet 2 Inhibit
2.3.2
Gn SEF/REF Delay 1 Inhibit
2.4
Gn SEF/REF Delay 2 Inhibit
2.4
Gn SEF/REF Lowset Inhibit
2.4
Gn V Inhibit
2.8
Gn Trip Circuit Fail
2.10
Gn Waveform Trig
2.13.3
2
Gn ΣI Update
2.14.1
Gn Reset Flag & Outputs
2.11
Gn Clock Sync.
2.2.7
Applied value
Applied value
Gn Alarm 1 *
see note below
2.2.5
Gn Alarm 2 *
see note below
2.2.5
Gn Alarm 3 *
see note below
2.2.5
Gn Alarm 4 *
see note below
2.2.5
Gn Alarm 5 *
see note below
2.2.5
* The text of these setting names reflects the value
applied to the ‘Set Alarm n’ settings in the ‘System
Config.’ menu.
Comms Interface Menu
Setting name
Ref
Comms Protocol
4.1.1
IEC Class 2 Measurand
4.2.6
Class 2 Update
4.2.7
IEC Class 2 Scaling
4.2.8
Comms Baud Rate
4.2.9
Comms Parity
4.2.10
Relay Address
4.2.11
Applied value
sec
baud
Page 11 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Setting name
Ref
Line Idle
4.2.12
Data Echo
4.2.13
CB Maintenance Menu
Applied value
Data Storage Menu
Setting name
Ref
Gn Fault Trigger
2.13.2
Gn Waveform Trig
2.13.3
Gn Waveform Pre-trigger
2.13.3
Clear All Waveforms
2.13.3
Clear All Events
2.13.1
Clear All Faults
2.13.2
Demand Window Type
2.13.4
Demand Window
2.13.4
Maximum Demand Reset
2.13.4
Page 12 of 35
Applied value
Setting name
Ref
Trip Counter Reset
2.14.1
Trip Counter Alarm
2.14.1
ΣI² Reset
2.14.1
ΣI² Alarm
2.14.1
Power On Count Reset
2.14.3
Power On Count Alarm
2.14.3
Energy Meter Reset
2.14.1
O/P Relay Test
2.14.2
%
Applied value
S1
S2
S3
S4
S5
S6
S7
S8
S9
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Relay Identifier
Inverted Inputs
Relay Address
Settings Group
Pick-up Delay (ms)
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
Drop-off Delay (ms)
V Trip
Prot. Healthy
Settings Group
Select
self supervision
V Starter
51 P/F Charact.
P/F Starter (non-dir/fwd)
time delayed overcurrent
P/F Starter (rev)
P/F Charact Inhib
P/F Charact. (non-dir/fwd)
Dir'n: Off
Fwd
Rev
Tri
50 P/F Lowset
P/F Lowset (non-dir/fwd)
P/F Lowset Inhib instantaneous overcurrent
Dir'n: Off
Fwd
Rev
P/F Lowset (rev)
Tri
50 P/F Highset 1
P/F Highset 1 (non-dir/fwd)
P/F Highset 1 Inhib instantaneous overcurrent
Dir'n: Off
Fwd
Rev
P/F Highset 1 (rev)
Tri
50 P/F Highset 2
P/F Highset 2 (non-dir/fwd)
P/F Highset 2 Inhib instantaneous overcurrent
Dir'n: Off
E/F Charact Inhib
Fwd
Rev
P/F Charact. (rev)
P/F Highset 2 (rev)
Tri
51N E/F Charact.
E/F Starter (non-dir/fwd)
time delayed overcurrent
E/F Starter (rev)
E/F Charact. (non-dir/fwd)
Dir'n: Off
Fwd
Rev
Tri
50N E/F Lowset
E/F Lowset (non-dir/fwd)
E/F Lowset Inhib instantaneous overcurrent
Dir'n: Off
Fwd
Rev
E/F Lowset (rev)
Tri
50N E/F Highset 1
E/F Highset 1 (non-dir/fwd)
E/F Highset 1 Inhib instantaneous overcurrent
Dir'n: Off
Fwd
Rev
E/F Highset 1 (rev)
Tri
50N E/F Highset 2
E/F Highset 2 (non-dir/fwd)
E/F Highset 2 Inhib instantaneous overcurrent
Dir'n: Off
Fwd
Rev
E/F Charact. (rev)
E/F Highset 2 (rev)
Tri
SEF Starter (non-dir/fwd)
50N / 87G SEF/REF
sensitive earth-fault
SEF Delay 1 Inhib. / restricted earth-fault
SEF Delay 2 Inhib.
SEF Delay 1 (non-dir/fwd)
SEF Delay 2 (non-dir/fwd)
SEF Lowset (non-dir/fwd)
SEF Lowset Inhib.
SEF Starter (rev)
SEF Delay 1 (rev)
SEF Delay 2 (rev)
Dir'n: Off
Fwd
Rev
Tri
SEF Lowset (rev)
67/67N
P/F FWD Block
directional overcurrent
P/F REV Block
V Inhib.
E/F (SEF) FWD Block
E/F (SEF) REV Block
27 / 59
V Inhib. undervoltage / overvoltage
V Starter
V Trip
V Block Alarm
74TC Trip Circuit Fail
Trip Circuit Fail trip circuit supervision
Argus Elements.vsd/AG2-1
continued on following page …
Page 13 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
S1
S2
S3
S4
S5
S6
S7
S8
S9
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
… continued from previous page
Status 1
Status 2
Status 3
Status 4
Status 5
Status 6
Status 7
Status 8
Status 9
Waveform Trig
Clock Sync
waveform recorder
fault recorder
Fault Trigger
real time clock
50BF CB Fail
circuit breaker failure
Fault Trigger
CB Fail 1
CB Fail 2
CT Failure
ΣI2 Update
CT Fail Alarm
Counter Alarm
Counter Reset circuit breaker operation counter
ΣI2 Alarm
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Reset Flag & Outputs
output relay control
Hand Reset
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
Min O/P Energise Time
Argus Elements.vsd/AG2-2
Figure 2-1 Status Input and Output Relay Programming Matrix
Page 14 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Section 3: IEC 60870-5-103 & Modbus RTU Definitions
3.1
IEC 60870-5-103 DEFINITIONS
The following tables give information on the IEC 60870-5-103 protocol. A detailed description of all
protocol information is available in report no 434/TM/5/13 which can be accessed on the www.reyrolleprotection.com in publications section under technical reports, “communications interface manual”.
Table Showing Function Type Numbers Used
Function Type
Description
160
IEC Overcurrent Protection
164
Reyrolle Overcurrent Protection
254
IEC Generic
255
IEC Global
Cause of Transmission
The cause of transmission (COT) column of the ‘Information Number and Function’ table lists possible
causes of transmission for these frames. The following abbreviations are used:
Table Showing Permitted Cause of Transmission Numbers
Cause of Transmission (COT)
Description
1
Spontaneous Events
2
Cyclic
3
Reset Frame Count Bit (FCB)
4
Reset Communication Unit (CU)
5
Start Restart
6
Power On
7
Test Mode
8
Time Synchronisation
9
General Interrogation
10
Termination of General Interrogation
11
Local Operation
12
Remote Operation
20
Positive Command Acknowledge
21
Negative Command Acknowledge
31
Transmission of Disturbance Data
Information Number and Function
The following tables list information number and function definitions together with a description of the
message and function type and cause of transmission that can result in that message. Not all
definitions are available on all relay types – this is dependent on functionality.
KEY
FUN
INF
TYP
GI
section 7.2.5.2)
COM
section 7.2.5.2)
COT
Function Type (defined in Error! Reference source not found. section 7.2.5.1)
Information Number (defined in Error! Reference source not found. section 7.2.5.2)
ASDU Type (defined in Error! Reference source not found. sections 7.3.1 and 7.3.2)
Event supports General Interrogation x = supported (defined in Error! Reference source not found.
Type of command single (ON only) or double (ON/OFF) (defined in Error! Reference source not found.
Cause of Transmission (defined in Error! Reference source not found. section 7.2.3, table 5)
Page 15 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
DIR
x
Direction of event - Raised Only (RO), Raised/Cleared (RC) or Double Point Travelling, Cleared, Raised or
Unknown (DBI)
Supported,
- Not supported.
GI
TYP
COT
DIR
AG 2
AG 2 - 500
Table Showing Command Information (INF) Numbers
FUN
INF
160
2
160
Reset FCB
-
5
3
RO
x
x
3
Reset CU
-
5
4
RO
x
x
160
4
Start/Restart
-
5
5
RO
x
x
160
5
Power On
-
5
6
RO
x
x
160
16
ARC in progress
x
1
1, 9, 12, 20, 21
RC
160
19
LEDs reset
-
1
1, 7, 11, 12, 20, 21
RO
x
x
160
21
Trip Test
x
1
1, 9
RC
x
x
160
22
Settings changed
x
1
1, 9, 11, 12
RC
x
x
160
23
Setting G1 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
160
24
Setting G2 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
160
25
Setting G3 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
160
26
Setting G4 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
160
27
Input 1
x
1
1, 9
RC
x
x
160
28
Input 2
x
1
1, 9
RC
x
x
160
29
Input 3
x
1
1, 9
RC
x
x
160
30
Input 4
x
1
1, 9
RC
x
x
160
36
Trip circuit fail
x
1
1, 9
RC
x
x
160
46
Group Warning
x
1
1, 9
RC
160
47
Alarm
x
1
1, 9
RO
160
64
A-starter
x
2
1, 9
RC
x
x
160
65
B-starter
x
2
1, 9
RC
x
x
160
66
C-starter
x
2
1, 9
RC
x
x
160
67
E-starter
x
2
1, 9
RC
x
x
160
68
General trip
-
2
1
RO
x
x
160
69
A-general trip
-
2
1
RO
x
x
160
70
B-general trip
-
2
1
RO
x
x
160
71
C-general trip
-
2
1
RO
x
x
160
84
General starter
x
2
1, 9
RC
x
x
160
85
Circuit breaker fail 1
-
2
1
RO
x
x
Page 16 of 35
Description
1
GI
TYP
COT
DIR
AG 2
AG 2 - 500
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
FUN
INF
160
91
160
Description
P/F-general HS trip
-
2
1
RO
x
x
92
E/F-general trip
-
2
1
RO
x
x
160
93
E/F-general HS trip
-
2
1
RO
x
x
160
128
CB on by auto reclose
-
1
1
DP
160
130
Reclose blocked
x
1
1, 9
RC
160
144
Measurand I
-
3.1
2,7
-
x
x
160
148
Measurand IL1,2,3, VL1,2,3, P, Q
-
9
2,7
-
x
x
164
0
Data lost
-
1
1
RO
x
x
164
1
A-lowset starter
-
2
1
RC
x
x
164
2
B-lowset starter
-
2
1
RC
x
x
164
3
C-lowset starter
-
2
1
RC
x
x
164
4
E-lowset starter
-
2
1
RC
x
x
164
5
A-lowset trip
-
2
1
RO
x
x
164
6
B-lowset trip
-
2
1
RO
x
x
164
7
C-lowset trip
-
2
1
RO
x
x
164
8
E-lowset trip
-
2
1
RO
x
x
164
9
A-delayed trip
-
2
1
RO
x
x
164
10
B-delayed trip
-
2
1
RO
x
x
164
11
C-delayed trip
-
2
1
RO
x
x
164
12
E-delayed trip
-
2
1
RO
x
x
164
13
A-HS1 trip
-
2
1
RO
x
x
164
14
B-HS1 trip
-
2
1
RO
x
x
164
15
C-HS1 trip
-
2
1
RO
x
x
164
16
E-HS1 trip
-
2
1
RO
x
x
164
17
A-HS2 trip
-
2
1
RO
x
x
164
18
B-HS2 trip
-
2
1
RO
x
x
164
19
C-HS2 trip
-
2
1
RO
x
x
164
20
E-HS2 trip
-
2
1
RO
x
x
164
21
SEF/REF starter
x
2
1, 9
RC
x
x
164
23
SEF/REF lowset trip
-
2
1
RC
x
x
164
24
SEF/REF stage 1 trip
-
2
1
RC
x
x
164
25
SEF/REF stage 2 trip
-
2
1
RC
x
x
164
26
A-HS1 starter
-
2
1
RC
x
x
164
27
B-HS1 starter
-
2
1
RC
x
x
1
One of Ia, Ib, Ie, Isef depending on relay type
Page 17 of 35
GI
TYP
COT
DIR
AG 2
AG 2 - 500
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
FUN
INF
164
28
164
Description
C-HS1 starter
-
2
1
RC
x
x
29
E-HS1 starter
-
2
1
RC
x
x
164
30
A-HS2 starter
-
2
1
RC
x
x
164
31
B-HS2 starter
-
2
1
RC
x
x
164
32
C-HS2 starter
-
2
1
RC
x
x
164
33
E-HS2 starter
-
2
1
RC
x
x
164
34
Circuit breaker open
x
1
1, 9
RO
164
35
Setting G5 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
164
36
Setting G6 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
164
37
Setting G7 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
164
38
Setting G8 selected
x
1
1, 9, 11, 12, 20, 21
RC
x
x
164
39
Circuit breaker fail 2
-
2
1
RO
x
x
164
41
CB close fail
x
1
1, 9
RO
164
43
CB DBI state
x
1
1, 9
RO
164
44
External Trip
-
2
1
RO
x
x
164
45
Input 5
x
1
1, 9
RC
x
x
164
46
Input 6
x
1
1, 9
RC
x
x
164
47
Input 7
x
1
1, 9
RC
x
x
164
48
Input 8
x
1
1, 9
RC
x
x
164
49
Input 9
x
1
1, 9
RC
x
x
164
51
Output 1
x
1
1, 9, 12, 20, 21
RC
x
x
164
52
Output 2
x
1
1, 9, 12, 20, 21
RC
x
x
164
53
Output 3
x
1
1, 9, 12, 20, 21
RC
x
x
164
54
Output 4
x
1
1, 9, 12, 20, 21
RC
x
x
164
55
Output 5
x
1
1, 9, 12, 20, 21
RC
x
x
164
56
Output 6
x
1
1, 9, 12, 20, 21
RC
x
x
164
57
Output 7
x
1
1, 9, 12, 20, 21
RC
x
x
164
58
Output 8
x
1
1, 9, 12, 20, 21
RC
x
x
164
59
Output 9
x
1
1, 9, 12, 20, 21
RC
x
x
164
60
Output 10
x
1
1, 9, 12, 20, 21
RC
x
x
164
61
Output 11
x
1
1, 9, 12, 20, 21
RC
x
x
164
62
Forward A
x
2
1, 9
RC
x
x
164
63
Reverse A
x
2
1, 9
RC
x
x
164
64
Forward B
x
2
1, 9
RC
x
x
164
65
Reverse B
x
2
1, 9
RC
x
x
164
66
Forward C
x
2
1, 9
RC
x
x
164
67
Reverse C
x
2
1, 9
RC
x
x
164
68
Forward E
x
2
1, 9
RC
x
x
164
69
Reverse E
x
2
1, 9
RC
x
x
Page 18 of 35
Description
GI
TYP
COT
DIR
AG 2
AG 2 - 500
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
FUN
INF
164
70
Trip count alarm
x
1
1, 9
RC
x
x
164
70
Trip count alarm
x
4
1, 9
-
x
x
164
71
CB maintenance alarm
x
1
1, 9
RC
x
x
164
71
CB maintenance alarm
x
4
1, 9
-
x
x
164
72
Frequent operations exceeded
x
1
1, 9
RC
164
73
Delta Trip Counter Alarm
x
1
1, 9
RC
164
79
Voltage Block
x
1
1, 9
RC
164
80
Waveform stored
-
1
1, 12, 20, 21
RO
x
x
164
81
Remote control interrupted
-
1
1
RO
x
x
164
82
Trip and Lockout
-
1
1, 12, 20, 21
RO
164
83
Close and Reclaim
-
1
1, 12, 20, 21
RO
164
84
Trip And Reclose
-
1
1, 12, 20, 21
RO
164
85
Circuit breaker closed
x
1
1, 9
RO
164
86
Close And Lockin
-
1
1, 12, 20, 21
RO
164
87
Reclose delay
x
1
1, 9
RC
164
88
Reclaim
x
1
1, 9
RC
164
89
Lockout
x
1
1, 9
RC
164
90
Forward SEF
x
2
1, 9
RC
x
164
91
Reverse SEF
x
2
1, 9
RC
x
164
92
Power On Counter Alarm
x
1
1, 9
RC
x
x
164
97
CT Failure
x
1
1, 9
RC
x
x
164
100
Cold load pickup
x
1
1, 9, 12, 20, 21
RC
164
101
Cold load trip
-
2
1
RO
164
102
Line check trip
-
2
1
RO
164
103
ARC start A
x
1
1, 9
RC
164
104
A backup time
-
1
1
RC
164
105
A backup trip
-
1
1
RC
164
106
External trip block
x
1
1, 9
RC
164
110
SEF off
x
1
1, 9, 12, 20, 21
RC
164
111
All ARC off
x
1
1, 9
RC
164
112
P/F ARC off
x
1
1, 9, 12, 20, 21
RC
164
113
E/F ARC off
x
1
1, 9, 12, 20, 21
RC
164
114
SEF ARC off
x
1
1, 9, 12, 20, 21
RC
164
115
All inst off
x
1
1, 9, 12, 20, 21
RC
164
116
P/F inst off
x
1
1, 9, 12, 20, 21
RC
164
117
E/F inst off
x
1
1, 9, 12, 20, 21
RC
164
118
SEF inst off
x
1
1, 9, 12, 20, 21
RC
x
Page 19 of 35
FUN
INF
Description
GI
TYP
COT
DIR
AG 2
AG 2 - 500
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
164
119
Hot line working
x
1
1, 9, 12, 20, 21
RC
164
120
Scada Control
x
1
1, 9
RC
164
121
General alarm 1
x
1
1, 9
RC
x
x
164
122
General alarm 2
x
1
1, 9
RC
x
x
164
123
General alarm 3
x
1
1, 9
RC
x
x
164
124
General alarm 4
x
1
1, 9
RC
x
x
164
125
General alarm 5
x
1
1, 9
RC
x
x
164
131
Va/Vab starter
x
2
1, 9
RC
x
164
132
Vb/Vbc starter
x
2
1, 9
RC
x
164
133
Vc/Vca starter
x
2
1, 9
RC
x
164
170
V starter
x
2
1, 9
RC
x
164
182
V trip
-
2
1
RO
x
164
190
Voltage Memory A
x
1
1, 9
RC
x
164
191
Voltage Memory B
x
1
1, 9
RC
x
164
192
Voltage Memory C
x
1
1, 9
RC
x
164
240
Ia Fault Current
x
4
1, 9
-
x
x
164
241
Ib Fault Current
x
4
1, 9
-
x
x
164
242
Ic Fault Current
x
4
1, 9
-
x
x
164
243
Ie Fault Current
x
4
1, 9
-
x
x
164
244
Isef Fault Current
x
4
1, 9
-
x
x
164
245
Va Fault Voltage
x
4
1, 9
-
x
164
246
Vb Fault Voltage
x
4
1, 9
-
x
164
247
Vc Fault Voltage
x
4
1, 9
-
x
164
248
Vn Fault Voltage
x
4
1, 9
-
x
255
0
Time Synchronisation
-
6
8
-
x
x
255
0
End of General Interrogation
-
8
10
-
x
x
COM
TYP
COT
FUN
INF
AG 1
AG 2 - 500
Table Showing Command Information (INF) Numbers
160
16
Auto-recloser ON/OFF
ON/OFF
20
20
-
-
160
19
Reset Flag & Outputs
ON
20
20
x
x
Page 20 of 35
Description
COM
TYP
COT
AG 1
AG 2 - 500
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
FUN
INF
160
23
160
Description
Settings Group 1 Select
ON
20
20
x
x
24
Settings Group 2 Select
ON
20
20
x
x
160
25
Settings Group 3 Select
ON
20
20
x
x
160
26
Settings Group 4 Select
ON
20
20
x
x
164
35
Settings Group 5 Select
ON
20
20
x
x
164
36
Settings Group 6 Select
ON
20
20
x
x
164
37
Settings Group 7 Select
ON
20
20
x
x
164
38
Settings Group 8 Select
ON
20
20
x
x
164
51
Energise Output 1
ON
20
20
x
x
164
52
Energise Output 2
ON
20
20
x
x
164
53
Energise Output 3
ON
20
20
x
x
164
54
Energise Output 4
ON
20
20
x
x
164
55
Energise Output 5
ON
20
20
x
x
164
56
Energise Output 6
ON
20
20
x
x
164
57
Energise Output 7
ON
20
20
x
x
164
58
Energise Output 8
ON
20
20
x
x
164
59
Energise Output 9
ON
20
20
x
x
164
60
Energise Output 10
ON
20
20
x
x
164
61
Energise Output 11
ON
20
20
x
x
164
80
Trigger Waveform Storage
ON
20
20
x
x
164
82
Trip and Lockout
ON
20
20
164
83
Close and Reclaim
ON
20
20
164
84
Trip And Reclose
ON
20
20
164
86
Close And Lockin
ON/OFF
20
20
164
100
Cold load pickup
ON/OFF
20
20
164
110
SEF
ON/OFF
20
20
164
112
P/F ARC Inhibit
ON/OFF
20
20
164
113
E/F ARC Inhibit
ON/OFF
20
20
164
114
SEF ARC Inhibit
ON/OFF
20
20
164
115
Instantaneous
ON/OFF
20
20
164
116
P/F Instantaneous
ON/OFF
20
20
164
117
E/F Instantaneous
ON/OFF
20
20
164
118
SEF Instantaneous
ON/OFF
20
20
164
119
Hot line working
ON/OFF
20
20
Page 21 of 35
INF
Description
COM
TYP
COT
164
129
Reset Energy Meters
ON/OFF
20
20
164
130
Reset Maximum Demand
ON/OFF
20
20
255
0
Initiate General Interrogation
-
7
9
255
0
Time Synchronisation
-
6
8
AG 1
FUN
AG 2 - 500
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
x
-
x
x
x
x
x
x
Note: Events listing a GI cause of transmission can be raised and cleared; other events are raised only.
MODBUS RTU DEFINITIONS
The following tables give information on the IEC 60870-5-103 protocol. A detailed description of all
protocol information is available in report no 434/TM/5/13 which can be accessed on the www.reyrolleprotection.com in publications section under technical reports, “communications interface manual”.
The tables below detail the MODBUS address map, listing data points that are available and the
functions supported for access. Please note, not all addresses will apply to all models.
To configure MODBUS a new setting has been added to the communications sub-menu to select the
protocol to use, either IEC60870-5-103 or MODBUS-RTU. After selecting MODBUS, set the remaining
parameters, baud rate, parity, station (slave) address, line idle and data echo as appropriate.
When an electrical RS485 module is connected to the Argus relay, the Line Idle and Data Echo
settings must both be set to OFF.
Table showing Coil Addresses
IEC
IEC
Description
COM
FUN
INF
00016
160
16
Autoreclose
ON/OFF
00019
160
19
Reset Flag & Outputs *
ON
x
x
00023
160
23
Settings Group 1 Select
ON
x
x
00024
160
24
Settings Group 2 Select
ON
x
x
00025
160
25
Settings Group 3 Select
ON
x
x
00026
160
26
Settings Group 4 Select
ON
x
x
01059
164
35
Settings Group 5 Select
ON
x
x
01060
164
36
Settings Group 6 Select
ON
x
x
01061
164
37
Settings Group 7 Select
ON
x
x
01062
164
38
Settings Group 8 Select
ON
x
x
01075
164
51
Energise Output 1
ON
x
x
01076
164
52
Energise Output 2
ON
x
x
01077
164
53
Energise Output 3
ON
x
x
01078
164
54
Energise Output 4
ON
x
x
01079
164
55
Energise Output 5
ON
x
x
Page 22 of 35
AG 2-5XX
MODBUS
Address
AG 2
3.2
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
IEC
Description
COM
FUN
INF
01080
164
56
Energise Output 6
ON
x
x
01081
164
57
Energise Output 7
ON
x
x
01082
164
58
Energise Output 8
ON
x
x
01083
164
59
Energise Output 9
ON
x
x
01084
164
60
Energise Output 10
ON
x
x
01085
164
61
Energise Output 11
ON
x
x
01104
164
80
Trigger Waveform Storage *
ON
x
x
01106
164
82
Trip and Lockout*
ON
01107
164
83
Close and Reclaim*
ON
01108
164
84
Trip and Reclose*
ON
01110
164
86
Close and Lockin*
ON/OFF
01124
164
100
Cold Load Pickup
ON/OFF
01134
164
110
SEF
ON/OFF
01136
164
112
PF ARC Inhibit
ON/OFF
01137
164
113
EF ARC Inhibit
ON/OFF
01138
164
114
SEF ARC Inhibit
ON/OFF
01139
164
115
Instantaneous
ON/OFF
01140
164
116
P/F Instantaneous
ON/OFF
01141
164
117
E/F Instantaneous
ON/OFF
01142
164
118
SEF Instantaneous
ON/OFF
01143
164
119
Hot Line Working
ON/OFF
01154
164
130
Reset Maximum Demand *
ON
x
x
AG 2-5XX
IEC
AG 2
MODBUS
Address
FUN
INF
AG 1 & 2
AG 2-5XX
Table Showing Inputs
MODBUS
Address
Description
10016
160
16
Auto Reclose Active
10021
160
21
Trip Test
x
x
10022
160
22
Settings changed
x
x
10023
160
23
Setting G1 selected
x
x
10024
160
24
Setting G2 selected
x
x
10025
160
25
Setting G3 selected
x
x
10026
160
26
Setting G4 selected
x
x
10027
160
27
Input 1
x
x
10028
160
28
Input 2
x
x
10029
160
29
Input 3
x
x
10030
160
30
Input 4
x
x
Page 23 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
INF
Description
10036
160
36
Trip circuit fail
10046
160
46
Group Warning
10047
160
47
Alarm
10064
160
64
10065
160
10066
AG 2-5XX
FUN
AG 1 & 2
MODBUS
Address
x
x
A-starter
x
x
65
B-starter
x
x
160
66
C-starter
x
x
10067
160
67
E-starter
x
x
10084
160
84
General starter
x
x
10128
160
128
CB on by auto recluse
10130
160
130
Reclose blocked
11045
164
21
SEF/REF starter
x
x
11058
164
34
Circuit breaker open
11059
164
35
Setting G5 selected
x
x
11060
164
36
Setting G6 selected
x
x
11061
164
37
Setting G7 selected
x
x
11062
164
38
Setting G8 selected
x
x
11065
164
41
CB close fail
11067
164
43
CB DBI state
11069
164
45
Input 5
x
x
11070
164
46
Input 6
x
x
11071
164
47
Input 7
x
x
11072
164
48
Input 8
x
x
11073
164
49
Input 9
x
x
11075
164
51
Output1
x
x
11076
164
52
Output2
x
x
11077
164
53
Output3
x
x
11078
164
54
Output4
x
x
11079
164
55
Output5
x
x
11080
164
56
Output6
x
x
11081
164
57
Output7
x
x
11082
164
58
Output8
x
x
11083
164
59
Output9
x
x
11084
164
60
Output10
x
x
11085
164
61
Output11
x
x
11086
164
62
Forward A
x
x
11087
164
63
Reverse A
x
x
11088
164
64
Forward B
x
x
11089
164
65
Reverse B
x
x
11090
164
66
Forward C
x
x
11091
164
67
Reverse C
x
x
Page 24 of 35
FUN
INF
AG 1 & 2
AG 2-5XX
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
MODBUS
Address
Description
11092
164
68
Forward E
x
x
11093
164
69
Reverse E
x
x
11094
164
70
Trip count alarm
x
x
11095
164
71
CB maintenance alarm
x
x
11096
164
72
Frequent operations exceeded
11097
164
73
Delta Trip Counter Alarm
11103
164
79
Voltage Block
11109
164
85
Circuit breaker closed
11111
164
87
Reclose Delay
11112
164
88
Reclaim
11113
164
89
Lockout
11114
164
90
Forward SEF
x
11115
164
91
Reverse SEF
x
11116
164
92
Power On Counter Alarm
x
x
11121
164
97
CT Failure
x
x
11124
164
100
Cold load pickup
11127
164
103
ARC start A
11130
164
106
External trip block
11134
164
110
SEF off
11135
164
111
All ARC off
11136
164
112
P/F ARC off
11137
164
113
E/F ARC off
11138
164
114
SEF ARC off
11139
164
115
All inst off
11140
164
116
P/F inst off
11141
164
117
E/F inst off
11142
164
118
SEF inst off
11143
164
119
Hot line working
11144
164
120
Scada Control
11145
164
121
General alarm 1
x
x
11146
164
122
General alarm 2
x
x
11147
164
123
General alarm 3
x
x
11148
164
124
General alarm 4
x
x
11149
164
125
General alarm 5
x
x
11155
164
131
Va/Vab starter
x
11156
164
132
Vb/Vbc starter
x
11157
164
133
Vc/Vca starter
x
11194
164
170
V starter
x
11214
164
190
Voltage Memory A
x
11215
164
191
Voltage Memory B
x
x
Page 25 of 35
FUN
INF
Description
164
192
Voltage Memory C
11216
AG 2-5XX
MODBUS
Address
AG 1 & 2
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
x
Page 26 of 35
Description
Size
(Words)
Scaling
Units
Scaled
AG 2-5XX
MODBUS
Address
A G2
Table Showing Input Registers
30001
Number Of Events In Store
1
1
-
x
x
30002
Latest Event Record
8
-
-
x
x
30101
IA (PRIMARY)
2
1000
A
x
x
30103
IB (PRIMARY)
2
1000
A
x
x
30105
IC (PRIMARY)
2
1000
A
x
x
30107
IE (PRIMARY)
2
1000
A
x
x
30109
ISEF/REF (PRIMARY)
2
1000
A
x
x
30111
Ia (SECONDARY)
2
1000
A
x
x
30113
Ib (SECONDARY)
2
1000
A
x
x
30115
Ic (SECONDARY)
2
1000
A
x
x
30117
Ie (SECONDARY)
2
1000
A
x
x
30119
Isef/ref (SECONDARY)
2
1000
A
x
x
30121
Ia (xIn)
2
1000
xIn
x
x
30123
Ib (xIn)
2
1000
xIn
x
x
30125
Ic (xIn)
2
1000
xIn
x
x
30127
Ie (xIn)
2
1000
xIn
x
x
30129
Isef/ref (xIn)
2
1000
xIn
x
x
30131
A Direction
8
-
-
x
x
30139
B Direction
8
-
-
x
x
30147
C Direction
8
-
-
x
x
30155
E Direction
8
-
-
x
x
30163
Relay Status
8
-
-
x
x
30171
Status Inputs
8
-
-
x
x
30179
Trip Circuit Fail
8
-
-
x
x
30187
Trip Counter
2
1
-
x
x
30189
Delta Trip Count
2
1
-
30191
Frequent Operation Counter
2
1
-
30193
Sum of I^2
2
100
MA^2
x
x
30195
Number of Waveforms
2
1
-
x
x
30197
Number of Events
2
1
-
x
x
30199
Number of Faults
2
1
-
x
x
30201
Time
8
-
-
x
x
30209
Date
8
-
-
x
x
30217
Starters
8
-
-
x
x
30257
General Alarms
8
-
-
x
x
30265
Power On/Resets
8
-
-
x
x
30273
ARC Status
8
-
-
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
30281
ARC Inhibits
8
-
-
30289
Circuit Breaker
8
-
-
30297
Shot Number
2
1
-
30299
Power On Counter
2
1
-
30301
VA (PRIMARY)
2
1000
V
x
30303
VB (PRIMARY)
2
1000
V
x
30305
VC (PRIMARY)
2
1000
V
x
30307
VN (PRIMARY)
2
1000
V
x
30309
VAB (PRIMARY)
2
1000
V
x
30311
VBC (PRIMARY)
2
1000
V
x
30313
VCA (PRIMARY)
2
1000
V
x
30315
Va (SECONDARY)
2
1000
V
x
30317
Vb (SECONDARY)
2
1000
V
x
30319
Vc (SECONDARY)
2
1000
V
x
30321
Vn (SECONDARY)
2
1000
V
x
30323
Vab (SECONDARY)
2
1000
V
x
30325
Vbc (SECONDARY)
2
1000
V
x
30327
Vca (SECONDARY)
2
1000
V
x
30329
3Phase Power
2
1
kW
x
30331
3Phase Apparent Power
2
1
kVA
x
30333
3Phase Reactive Power
2
1
kVAr
x
30335
3Phase Power Factor
8
-
-
x
30343
Voltage Element
8
-
-
x
30393
WHr (Forward)
2
1
kWHr
x
30395
WHr (Reverse)
2
1
kWHr
x
30397
VArHr (Forward)
2
1
kVArHr
x
30399
VArHr (Reverse)
2
1
kVArHr
x
30401
IA (PRIMARY) Demand
2
1000
A
x
30403
IB (PRIMARY) Demand
2
1000
A
x
x
30405
IC (PRIMARY) Demand
2
1000
A
x
x
30407
IA (PRIMARY) Max Demand
2
1000
A
x
x
30409
IB (PRIMARY) Max Demand
2
1000
A
x
x
30411
IC (PRIMARY) Max Demand
2
1000
A
x
x
30413
3Phase Watt Demand
2
1
kW
30415
3Phase VAr Demand
2
1
kVAr
x
30417
3Phase Watt Max Demand
2
1
kW
x
30419
3Phase VAr Max Demand
2
1
kVAr
x
x
x
x
x
Table Showing Holding Registers
40001
Set Time
FORMAT
Time 8
SIZE (WORDS)
4
AG 2-5XX
Description
AG 1 & 2
Address
x
x
Page 27 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
Section 4: Application Diagrams
The following pages contain example application diagrams for a variety of connections, showing
various hardware options.
AG2-101, 102
BUSBARS
A
B
C
13
14
15
RL1
RL2
3 +
4 -
S1
RL3
P1
S1
S2
E/F
5A
RL6
RL7
Dn
Da
A
1
2
Rear F.O.
comms ports
P1
S1
S2
see note 3
RL5
1A
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
P2
P2
P2
S2
S1
P1
RL4
25
26
27
28
Notes
1.
CT circuits are shown
c o nn e c t e d t o 1 A t a p - us e
alternative tap for 5A rated
CTs.
2.
CT and earth connections
are typical only.
3.
Application shows use of
Holmgreen connection for E/F
circuit. Use of separate ringcore CT is also possible.
4.
Rear RS485 port is an
ordering option. Connect wire
link as shown to include 120W
terminating resistor in circuit.
Tx
Rx
Rear RS485
comms port
120 Ω
A
B
Term
see note 4
Screen
C
B
Phase rotation
P300002 Argus 2 Connection Diagrams / ArG2-101,102
Figure 4-1 Typical Connection for Directional Earth-fault Protection
Page 28 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
AG2-103, 104
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
3 +
4 -
S1
RL3
RL4
P1
S1
25
26
27
28
S2
P2
RL5
1A
SEF
5A
RL6
120 Ω
Rear F.O.
comms ports
RL7
Dn
Da
Notes
1.
CT circuits are shown
connected to 1A tap - use
alternative tap for 5A rated
CTs.
2.
CT and earth connections
are typical only.
3.
Rear RS485 port is an
ordering option. Connect wire
link as shown to include 120W
terminating resistor in circuit.
1
2
Tx
B
see note 6
Term
Rx
Screen
A
C
Rear RS485
comms port
A
B
Phase rotation
P300002 Argus 2 Connection Diagrams / ArG2-103,104
Figure 4-2 Typical Connection for Directional Sensitive Earth-fault Protection
AG2-3x1, 3x2
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
Va
81
Vb
Vc
S1
RL4
1A
A
5A
1A
5A
RL5
RL6
B
5A
1A
RL3
C
RL7
S2
S3
82
S4
S5
83
RL8
RL9
B
RL10
Phase rotation
RL11
C
120 Ω
Rear F.O.
comms ports
P1
S1
S2
P1
S1
S2
53
54
55
56
49
50
51
52
45
46
47
48
P2
P1
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
A
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Optional expansion card, fitted only
on models AG2-311 and AG2-312.
4.
Optional expansion card, fitted only
on models AG2-321 and AG2-322.
5.
R e a r R S 4 8 5 p o r t i s a n o r d e ri n g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
A
Tx
B
Term
Rx
Rear RS485
comms port
see note 6
Screen
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 3
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
see note 4
P300002 Argus 2 Connection Diagrams / AG2-3x1,3x2
Figure 4-3 Typical Connection for 3 Directional Phase-fault Protection
Page 29 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
AG2-3x3, 3x4
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
S2
53
54
55
56
S1
RL3
RL4
1A
A
RL5
5A
RL6
RL7
S1
S2
1A
46
47
48
25
26
27
28
P1
see note 3
P2
Va
Rear F.O.
comms ports
P2
S1
P2
S2
P1
3 +
4 -
Direction of power flow in
the forward direction
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of SEF/REF
as an SEF input. Use of the input for highimpedance REF requires an additional
setting resistor, and may also require a
metrosil.
4.
Optional expansion card, fitted only
on models AG2-313 and AG2-314.
5.
Optional expansion card, fitted only
on models AG2-323 and AG2-324.
6.
Re a r R S 48 5 po rt i s an o rd er i n g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
C
5A
1A
SEF
5A
81
S2
Vb
Vc
S3
82
S4
83
RL8
S5
A
Tx
120 Ω
+
+
+
+
-
RL9
B
RL10
Phase rotation
RL11
C
Rear RS485
comms port
Rx
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
S2
S3
S4
S5
S6
S7
S8
S9
see note 4
A
B
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
+
+
+
+
+
+
+
+
-
Term
see note 6
Screen
see note 5
P300002 Argus 2 Connection Diagrams / AG2-3x3,3x4
Figure 4-4 Typical Connection for 2 Directional Phase-fault and Sensitive Earth-fault
Protection
AG2-3x5, 3x6
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
S1
RL3
RL4
1A
A
5A
RL5
RL6
RL7
see note 3
Va
45
46
47
48
25
26
27
28
81
Vb
Vc
1A
C
5A
1A
5A
E/F
S2
S3
82
S4
S5
A
83
RL8
RL9
C
B
Dn
Da
79
80
120 Ω
Rear F.O.
comms ports
S1
S2
P1
P1
S1
S2
53
54
55
56
P2
S1
S2
P2
P1
P2
Direction of power flow in
the forward direction
3 +
4 -
Phase rotation
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of Holmgreen
connection for E/F circuit. Use of separate
ring-core CT is also possible.
4.
Optional expansion card, fitted only
on models AG2-315 and AG2-316.
5.
Optional expansion card, fitted only
on models AG2-325 and AG2-326.
6.
Re ar RS 48 5 p ort is an or der in g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
RL10
RL11
Tx
A
B
Term
Rx
Rear RS485
comms port
see note 6
Screen
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 4
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
see note 5
P300002 Argus 2 Connection Diagrams / AG2-3x5,3x6
Figure 4-5 Typical Connection for 2 Directional P/F and Directional E/F Protection
Page 30 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
AG2-3x7, 3x8
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
RL3
RL4
1A
A
RL5
5A
RL6
RL7
45
46
47
48
25
26
27
28
see note 3
1A
C
5A
1A
120 Ω
Rear F.O.
comms ports
S1
S2
P1
S1
S2
P1
53
54
55
56
P2
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
E/F
5A
S2
S3
S4
S5
A
1
2
see note 6
Screen
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
+
+
+
+
-
RL10
Phase rotation
B
Term
Rx
RL9
Dn
Da
B
Rear RS485
comms port
A
Tx
RL8
C
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of Holmgreen
connection for E/F circuit. Use of separate
ring-core CT is also possible.
4.
Optional expansion card, fitted only
on models AG2-317 and AG2-318.
5.
Optional expansion card, fitted only
on models AG2-327 and AG2-328.
6.
Re a r R S 4 8 5 p o r t i s a n o r d e r i n g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
RL11
S2
S3
S4
S5
S6
S7
S8
S9
see note 4
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
+
+
+
+
+
+
+
+
-
see note 5
P300002 Argus 2 Connection Diagrams / AG2-3x7,3x8
Figure 4-6 Typical Connection for 2 Phase-fault and Directional Earth-fault Protection
AG2-4x1, 4x2
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
see note 3
Va
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
81
Vb
Vc
S1
RL4
1A
A
5A
1A
B
C
5A
1A
5A
RL5
RL6
5A
1A
RL3
E/F
RL7
S2
S3
82
S4
S5
A
83
RL8
RL9
B
Phase rotation
Dn
Da
79
80
120 Ω
Rear F.O.
comms ports
S2
S1
P1
P1
S1
S2
P2
P2
P1
S1
S2
P2
Direction of power flow in
the forward direction
3 +
4 -
C
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of Holmgreen
connection for E/F circuit. Use of separate
ring-core CT is also possible.
4.
Optional expansion card, fitted only
on models AG2-411 and AG2-412.
5.
Optional expansion card, fitted only
on models AG2-421 and AG2-422.
6.
R e a r R S 48 5 p o rt i s a n or de ri n g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
RL10
RL11
Tx
A
B
Term
Rx
Rear RS485
comms port
see note 6
Screen
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 4
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
see note 5
P300002 Argus 2 Connection Diagrams / AG2-4x1,4x2
Figure 4-7 Typical Connection for 3 Directional P/F and Directional E/F Protection
Page 31 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
AG2-4x3, 4x4
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
S2
see note 3
P2
Va
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
S1
RL4
1A
A
5A
B
5A
C
5A
1A
RL5
RL6
1A
1A
RL3
SEF
5A
81
RL7
Rear F.O.
comms ports
P1
S2
S1
P1
P2
S2
S1
P1
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
S2
Vb
Vc
S3
82
S4
S5
A
83
Tx
120 Ω
B
+
+
+
+
-
RL8
B
RL10
Phase rotation
RL11
Rear RS485
comms port
A
Rx
RL9
C
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of SEF/REF
as an SEF input. Use of the input for highimpedance REF requires an additional
setting resistor, and may also require a
metrosil.
4.
Optional expansion card, fitted only
on models AG2-413 and AG2-414.
5.
Optional expansion card, fitted only
on models AG2-423 and AG2-424.
6.
R e a r R S 48 5 p o r t i s an o rd e ri ng
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
S2
S3
S4
S5
S6
S7
S8
S9
see note 4
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
+
+
+
+
+
+
+
+
-
see note 6
Term
Screen
see note 5
P300002 Argus 2 Connection Diagrams / AG2-4x3,4x4
Figure 4-8 Typical Connection for 3 Directional Phase-fault and Sensitive Earth-fault
Protection
AG2-4x5, 4x6
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
see note 3
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
S1
RL4
1A
A
5A
B
5A
C
5A
1A
5A
RL5
RL6
1A
1A
RL3
E/F
RL7
S2
S3
S4
S5
A
RL8
RL9
C
B
Dn
Da
1
2
120 Ω
Rear F.O.
comms ports
P1
S1
P2
S2
P1
P2
S2
S1
P1
S1
S2
P2
Direction of power flow in
the forward direction
3 +
4 -
Phase rotation
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of Holmgreen
connection for E/F circuit. Use of separate
ring-core CT is also possible.
4.
Optional expansion card, fitted only
on models AG2-415 and AG2-416.
5.
Optional expansion card, fitted only
on models AG2-425 and AG2-426.
6.
R e ar R S 4 85 p o rt i s an or de ri n g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
RL10
RL11
Tx
A
B
Term
Rx
Rear RS485
comms port
see note 6
Screen
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 4
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
see note 5
P300002 Argus 2 Connection Diagrams / AG2-4x5,4x6
Figure 4-9 Typical Connection for 3 Phase-fault and Directional Earth-fault Protection
Page 32 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
AG2-5x1, 5x2
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
see note 3
Va
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
S1
RL4
1A
A
5A
1A
B
C
5A
1A
E/F
5A
83
84
Vb
Vc
RL5
RL6
5A
1A
RL3
RL7
120 Ω
Rear F.O.
comms ports
P1
S2
S1
P1
P2
S2
S1
P1
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
Tx
S4
79
80
RL8
+
+
+
+
-
S5
RL9
see note 6
B
RL10
Phase rotation
RL11
B
Rear RS485
comms port
see note 6
Screen
S2
81
82
A
Term
Rx
S3
A
C
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of Holmgreen
connection for E/F circuit. Use of separate
ring-core CT is also possible.
4.
Optional expansion card, fitted only
on models AG2-511 and AG2-512.
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
+
+
+
+
+
+
+
+
-
S2
S3
S4
S5
S6
S7
S8
S9
see note 4
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
5.
Optional expansion card, fitted only
on models AG2-521 and AG2-522.
6.
Application shows use of 5-limb star
connected VT, with neutral voltage derived
internally.
6.
Rea r RS 4 85 por t i s an o rde ri ng
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
see note 5
Argus 2 Connection Diagrams / AG2-5x1to2 1
Figure 4-10 Typical Connection of Type AG2-5xx Dir P/F and Dir E/F with Star-connected VT
AG2-5x1, 5x2
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
see note 3
Va
Vb
Vc
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
83
84
S1
1A
RL4
A
5A
B
5A
C
5A
1A
5A
RL5
RL6
1A
1A
RL3
E/F
RL7
S2
S3
81
82
S4
79
80
RL8
S5
Dn
Da
see note 6
RL9
B
RL10
Phase rotation
RL11
C
120 Ω
Rear F.O.
comms ports
S2
S1
P1
P2
S2
S1
P1
P1
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
A
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of Holmgreen
connection for E/F circuit. Use of separate
ring-core CT is also possible.
4.
Optional expansion card, fitted only
on models AG2-511 and AG2-512.
5.
Optional expansion card, fitted only
on models AG2-521 and AG2-522.
Tx
Rear RS485
comms port
A
B
Term
Rx
see note 7
Screen
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 4
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
6.
Application shows use of 5-limb star
VT wit h separate open-delt a winding
providing the neutral voltage.
7.
R e a r R S 4 8 5 p or t i s a n o r d er i n g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
see note 5
Argus 2 Connection Diagrams / AG2-5x1to2 2
Figure 4-11 Typical Connection of Type AG2-5xx Dir P/F and Dir E/F with Open-delta VT
Page 33 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
AG2-5x3, 5x4
BUSBARS
A
B
C
13
14
15
RL1
RL2
P1
S1
S2
see note 3
P2
Va
Vb
Vc
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
S1
RL4
1A
A
RL5
5A
RL6
1A
B
RL7
5A
1A
RL3
C
5A
1A
SEF
5A
83
84
S2
S3
81
82
S4
S5
A
79
80
120 Ω
Rear F.O.
comms ports
P1
S2
S1
P1
S1
S2
P2
P1
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
see note 6
RL10
Phase rotation
RL11
B
Term
Rx
Rear RS485
comms port
see note 7
Screen
+
+
+
+
-
RL8
B
A
Tx
RL9
C
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of SEF/REF
as an SEF input. Use of the input for highimpedance REF requires an additional
setting resistor, and may also require a
metrosil.
4.
Optional expansion card, fitted only
on models AG2-513 and AG2-514.
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
S2
S3
S4
S5
S6
S7
S8
S9
see note 4
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
5.
Optional expansion card, fitted only
on models AG2-523 and AG2-524.
6.
Application shows use of 5-limb star
connected VT, with neutral voltage derived
internally.
7.
R e ar RS 4 85 po rt i s a n o rd e ri ng
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
see note 5
Argus 2 Connection Diagrams / AG2-5x3to4 1
Figure 4-12 Typical Connection of Type AG2-5xx Dir P/F and SEF with Star-connected VT
AG2-5x3, 5x4
BUSBARS
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
S2
see note 3
P2
Va
Vb
Vc
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
83
84
S1
RL4
1A
A
5A
1A
C
5A
1A
SEF
5A
RL5
RL6
E/F
5A
1A
RL3
RL7
S2
S3
81
82
S4
79
80
RL8
S5
A
RL9
see note 6
120 Ω
Rear F.O.
comms ports
S2
S1
P1
P2
S2
S1
P1
P1
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
B
RL10
Phase rotation
RL11
C
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of SEF/REF
as an SEF input. Use of the input for highimpedance REF requires an additional
setting resistor, and may also require a
metrosil.
4.
Optional expansion card, fitted only
on models AG2-513 and AG2-514.
Tx
A
B
Term
Rx
Rear RS485
comms port
see note 7
Screen
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 4
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
5.
Optional expansion card, fitted only
on models AG2-523 and AG2-524.
6.
Application shows use of 5-limb star
connected VT, with neutral voltage derived
internally.
7.
R e ar R S 4 85 p or t i s an o rd e r i ng
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
see note 5
Argus 2 Connection Diagrams / AG2-5x3to4 2
Figure 4-13 Typical Connection of Type AG2-5xx Dir P/F Dir E/F and SEF with Star-connected VT
Page 34 of 35
Numerical Multi-Function Overcurrent Protection Relay
P20009 issue 2004/05
A
B
C
13
14
15
5
6
7
8
9
10
16
17
18
11
12
19
20
21
22
23
24
RL1
RL2
P1
S1
S2
see note 3
P2
Va
Vb
Vc
53
54
55
56
49
50
51
52
45
46
47
48
25
26
27
28
83
84
S1
RL4
1A
A
5A
E/F
5A
C
5A
1A
5A
RL5
RL6
1A
1A
RL3
SEF
RL7
S2
S3
81
82
S4
79
80
RL8
S5
Dn
Da
RL9
see note 6
B
RL10
Phase rotation
RL11
C
120 Ω
Rear F.O.
comms ports
P1
S1
S2
P1
S1
S2
P2
P1
S1
S2
P2
P2
Direction of power flow in
the forward direction
3 +
4 -
A
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Application shows use of SEF/REF
as an SEF input. Use of the input for highimpedance REF requires an additional
setting resistor, and may also require a
metrosil.
4.
Optional expansion card, fitted only
on models AG2-513 and AG2-514.
AG2-5x3, 5x4
BUSBARS
Tx
A
B
Term
Rx
Rear RS485
comms port
see note 7
Screen
+
+
+
+
-
35
36
33
34
31
32
29
30
37
38
39
40
41
42
43
44
see note 4
S2
S3
S4
S5
S6
S7
S8
S9
+
+
+
+
+
+
+
+
-
35
36
33
34
31
32
29
30
43
44
41
42
39
40
37
38
5.
Optional expansion card, fitted only
on models AG2-523 and AG2-524.
6.
Application shows use of 5-limb star
VT with s eparate open-delta winding
providing the neutral voltage.
7.
R ea r R S 4 8 5 p o rt i s a n or de r i n g
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
see note 5
Argus 2 Connection Diagrams / AG2-5x3to4 3
Figure 4-14 Typical Connection of Type AG2-5xx Dir P/F, Dir E/F and SEF with Open-delta VT
Page 35 of 35