VAMP 221 manual- Arc flash protection

VAMP 221 manual- Arc flash protection
VAMP 221
Arc protection system
Operation and configuration instructions
Technical description
VM221.EN018
Operation and configuration
instructions
1 General
1.1 VAMP 221 arc protection
system components
Table of Contents
1. General ................................................................................... 4
1.1. VAMP 221 arc protection system components .............4
1.1.1. Central unit VAMP 221 ..............................................6
1.1.2. I/O units VAM 12L / VAM 12 LD, VAM 10L / VAM
10LD, VAM 3L / VAM 3LX and VAM 4C / VAM 4CD ........7
1.1.3. Arc sensors VA 1 DA, VA 1 EH, ARC SLx, ARC
SLm-x and VA 1 DP ................................................................9
1.1.4. Other system components .................................... 13
1.2. Operational safety ........................................................... 13
2. User interface ....................................................................... 14
2.1. Front panel of the central unit VAMP 221 .................... 14
2.1.1. Display and status indications .............................. 15
2.1.2. Buttons and programming switches .................... 16
2.1.3. Moving in menus ..................................................... 17
2.2. I/O unit ............................................................................... 18
2.2.1. VAM 12L ................................................................... 19
2.2.2. VAM 12LD................................................................. 20
2.2.3. VAM 10L ................................................................... 22
2.2.4. VAM 10LD................................................................. 23
2.2.5. VAM 3L ..................................................................... 25
2.2.6. VAM 3LX ................................................................... 26
2.2.7. VAM 4C .................................................................... 27
2.2.8. VAM 4CD ................................................................. 28
2.2.9. Multiplying relay VAR 4CE – front plate ............... 30
2.2.10. Multiplying relay VAMP 4R - front plate ............... 31
3. VAMP 221 arc protection system operation and
troubleshooting .......................................................................... 32
3.1. System status indications ................................................ 32
3.1.1. Arc fault .................................................................... 33
3.1.2. Overcurrent alarm .................................................. 34
3.1.3. Self-supervision alarm ............................................. 36
3.1.4. Fault codes .............................................................. 37
3.2. Using programming switches ......................................... 43
3.2.1. Central unit’s programming switches .................. 44
3.2.2. Programming switches - I/O units ......................... 45
3.3. Adjusting the overcurrent setting .................................. 49
3.4. Configuration of the arc protection system ................ 51
3.4.1. Checking system configuration ........................... 52
4. System commissioning ........................................................ 53
4.1. Testing - general ............................................................... 53
4.2. Performing the testing ..................................................... 54
4.3. Periodic commissioning .................................................. 54
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1.1 VAMP 221 arc protection
system components
1.
1 General
Operation and configuration
instructions
General
This first part, Operation and configuration instructions, of the
Manual contains a general description of and user instructions
for the VAMP 221 Arc Protection System components and
functions. This section also includes parametering and
configuration instructions and instructions for changing the
setting values.
The second part, Technical description, contains a detailed
description of the protection functions, application examples
and technical data.
Software revision history
1.1.
3.08
Self-supervision alarm display is manually reset only.
3.10
Detection of system fault takes about 100 seconds.
VAMP 221 arc protection system
components
VAMP 221 is an easily adaptable arc protection system for the
protection of electricity distribution systems. VAMP 221
significantly reduces the risk of potential personal damage, and
material and production losses caused by arc fault.
VAMP 221 in a nutshell:
 system operating time 7 milliseconds

accurate location of arc fault

four selective protection zones

self-supervision of the entire system

system cabling with standard cables

automatic system configuration

phase current measuring

earth-fault current measuring
VAMP 221 complies with the latest standards concerning the
electromagnetic compliance (EMC) of protective relays.
4
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Operation and configuration
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1 General
1.1 VAMP 221 arc protection
system components
Figure 1.1-1 VAMP 221 Arc Protection System
VAMP 221 is a modular system consisting of a central unit, I/O
units, arc sensors and possible multiplying relays.
Thanks to its modularity, the system can easily be adapted to
different targets requiring arc protection, from simple systems
comprising one central unit and one I/O unit to versatile
selective systems comprising several central units.
The VAMP 221 arc protection system is suitable for both low
and medium voltage switchgear. In addition to new switchgear,
the system can also be installed on existing switchgear.
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1.1 VAMP 221 arc protection
system components
1.1.1.
1 General
Operation and configuration
instructions
Central unit VAMP 221
Figure 1.1.1-1 The central unit VAMP 221
The central unit VAMP 221 contains the following functions:
 3-phase overcurrent and arc stage
6

Alternatively, 2-phase overcurrent, earth-fault and arc
stage

Circuit breaker failure protection stage (CBFP)

Optional trip criteria (I>&L>, I0>&L> or L>)

Two mutually independent tripping groups

Four output trip relays

Four protection zones

BI/O bus for light and overcurrent information

Status, fault and trip indications

Accommodates up to 16 I/O units

System self-supervision
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Operation and configuration
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1.1.2.
1 General
1.1 VAMP 221 arc protection
system components
I/O units VAM 12L / VAM 12 LD, VAM 10L /
VAM 10LD, VAM 3L / VAM 3LX and VAM 4C /
VAM 4CD
Figure 1.1.2-1 I/O units VAM 12L / VAM 12LD, VAM 10L / VAM 10 LD,
VAM 3L / VAM 3LX and VAM 4C / VAM 4CD
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1.1 VAMP 221 arc protection
system components
8
1 General
Operation and configuration
instructions

Sensors are connected to the central unit via I/O units.

VAM 12L / VAM 12LD accommodates up to 10 arc
sensors. 3 sensors with dedicated trip outputs.

VAM 10L / VAM 10 LD accommodates up to 10 arc
sensors

VAM 3L accommodates up to 3 fibre loops

VAM 3LX accommodates up to 3 fibre loops with
sensitivity adjust

VAM 4C / VAM 4CD accommodates up to 3 current
transformers

VAM 12L / VAM 12LD is equipped with 3 output trip
relays

VAM 10L / VAM 10 LD, VAM 3L / VAM 3LX, VAM 4C
/ VAM 4CD are equipped with one output trip relay.

Indication of active sensor.

Protection zone adresses (max. 4 zones)

Detachable external wiring terminal blocks (does not
apply to the current terminals of VAM 4C).

Connection for a portable arc sensor (VAM 10L , 3LX
and 3L)

Free placement in the switchgear.

Intra-unit cabling with factory-made modular cable or
instrumentation cable.
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Operation and configuration
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1.1.3.
1 General
1.1 VAMP 221 arc protection
system components
Arc sensors VA 1 DA, VA 1 EH, ARC SLx,
ARC SLm-x and VA 1 DP
Sensors placed in the switchgear transfer the light information
to the I/O units.
Arc sensor VA 1 DA
Figure 1.1.3-1 Arc sensor VA 1 DA
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
Strong light is transformed to a current signal in the
sensor

VAM 10L transfers the current signal to the central
unit

Standard cable lengths 6 m and 20 m

The sensor type offers a cost-effective arc protection
solution

Easy to install and repair (after arc faults, for example)

Normal installation involves one sensor in each
switchgear compartment

Self-supervised arc sensor
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1.1 VAMP 221 arc protection
system components
1 General
Operation and configuration
instructions
Arc sensor VA 1 EH
Figure 1.1.3-2 Arc sensor VA 1 EH
10

Strong light is transformed to a current signal in the
sensor

VAM 10L transfers the current signal to the central
unit

Standard cable lengths 6 m and 20 m

The sensor type offers a cost-effective arc protection
solution

The sensor can be installed in a tube, for example, so
that the active light detector sees the monitored zone.

Self-supervised arc sensor
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Operation and configuration
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1 General
1.1 VAMP 221 arc protection
system components
Arc fibre sensor ARC SLm-x
Figure 1.1.3-3 Arc fibre sensor ARC SLm-x

The fibre sensor is a durable glass fibre, which is
manufactured in lengths of 10, 15, 20, 25, 30, 35, 40, 50
and 70 metres

The detected light information is transferred to the
VAM 3L /VAM 3LX unit inside the fibre
 The fibre will be installed to go through the supervised
compartments
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
Monitoring the light information with a fibre system is
a cost-effective solution e.g. in low voltage switchgears
with several compartments

Self-supervised arc sensor

More than 8,000 lux
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1.1 VAMP 221 arc protection
system components
1 General
Operation and configuration
instructions
Portable arc sensor VA 1 DP
Figure 1.1.3-4 Portable arc sensor VA 1 DP
12

Improves personal safety when working with live
voltage switchgear.

The sensor is to be connected to the nearest light I/O
unit (VAM 10L, VAM 3L or VAM 3LX) using a snap-in
connector

Cable length 5 metres

The sensor is designed to be attached e.g. to the edge of
a pocket in the technician‟s working wear
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Operation and configuration
instructions
1.1.4.
1 General
1.2 Operational safety
Other system components
Modular cable VX001
Figure 1.1.4-1 Modular cable VX001
The I/O and master units are to be connected to each other
using a modular cable approved by the manufacturer. The cable
is equipped with quick- disconnect connectors.
Modular cables are available in lengths of 1, 3, 5, 7, 10, 15, 20,
25 and 30 metres. If necessary, custom specified lengths can
also be provided.
NOTE! The total length of the modular or instrumentation cables of
the system, measured from the central unit to the furthest I/O
unit, may not exceed 100 metres.
1.2.
Operational safety
Dangerous voltages may occur at the terminal in the back
panel of the central unit, even though the auxiliary power
supply has been disconnected. Do not open the secondary
circuit of a live current transformer. Disconnecting the
secondary circuit of a live current transformer may cause
dangerous overcurrents! Always observe all national and
regional regulations and guidelines.
Read any instructions carefully before performing any
operations.
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2.1 Front panel of the central
unit VAMP 221
2.
2 User interface
Operation and configuration
instructions
User interface
The control and acknowledgement functions of the VAMP 221
arc protection system are mainly carried out using the push
buttons on the central unit. Information on equipment status
and operation can also be read on the central unit‟s display and
indicator lights.
2.1.
Front panel of the central unit VAMP
221
Figure 2.1-1 Central unit VAMP 221 - front panel
The front panel of the central unit contains all the
programming and control buttons, and the DIP-switches that
control the operation of the central unit.
14
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Operation and configuration
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2.1.1.
2 User interface
2.1 Front panel of the central
unit VAMP 221
Display and status indications
Figure 2.1.1-1 Central unit VAMP 221 - display and status indications
1. Operating status indication lights, see section „Moving in
menus‟
RUN
normal operation
INSTALL
system configuration
INFO
system configuration check
TEMP SET
reserved for future use
TEMP
reserved for future use
CURRENT
current setting limit and measurement
indication
ERROR
reading and resetting of fault memory
2. Display
3. POWER indicator light, indicates all supply voltages are in
order.
4. COM indicator light, blinks in INSTALL mode when the
central units and I/O units are communicating.
5. ERROR indicator light, indicates internal fault detected by
the relay self-diagnostics.
NOTE! The light also blinks dimly in normal operating mode (visible
only in the dark).
6. Trip indication lights, indicate which trip stages have been
activated.
7. I>int LED light, indicates overcurrent activation of the
central unit.
8. I>ext LED light, indicates overcurrent activation outside
the central unit.
NOTE! Any rippling in the display is due to its refresh rate.
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2.1 Front panel of the central
unit VAMP 221
2 User interface
Operation and configuration
instructions
NOTE! Moving in the operating menus does not affect the operation of
the arc protection; the system is ready to activate once the
system has been configured and while the central unit is
connected to an operating voltage.
2.1.2.
Buttons and programming switches
Figure 2.1.2-1 Buttons and programming switches
1. Programming switches for the trip relay matrix
2. Selection switch for the secondary current of the current
transformer
3. Overcurrent setting knob (IL1, IL3), setting range 0.5…6xIn
4. Overcurrent setting knob (IL2, I0), setting range 0.05…5xIn
5. Navigation keys
6. SET push button for activating functions
7. ENTER push button for executing functions
8. Communication port for loading software updates, not
needed in normal operation.
For more details on the trip relay matrix, see section 3.3 Using
programming switches.
16
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Operation and configuration
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2.1.3.
2 User interface
2.1 Front panel of the central
unit VAMP 221
Moving in menus
Figure 2.1.3-1 Moving in the mode menu
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2.2 I/O unit
2 User interface
Operation and configuration
instructions
Select the operating status with the up and down navigation
keys on the central unit.
To activate a function, use the S key. A blinking display
indicates that the function has been activated. Press E to
confirm the execution of an activated function. To cancel an
activated function, press S again.
Use the left and right navigation keys to browse parallel
information; for example, you can change the I/O unit you wish
to view in the INFO mode or compare the current limit setting
values the measured earth-fault and/or phase currents.
NOTE! If you do not touch the buttons for one minute, the central unit
automatically returns to the normal operating mode (RUN).
Regardless of which menu is displayed the arc system will
always be ready to operate!
2.2.
I/O unit
Usually, there is no need to touch the front panel during
normal operation, since all the necessary information can be
read from the central unit display. However, after a new
installation or a system expand you will need to program
certain functions (zone/address, trip output) in the I/O unit.
NOTE! If you unfasten the terminal blocks during installation,
remember to tighten the fixing screws after installation! Also
tighten the screws even if you did not unfasten the blocks.
18
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Operation and configuration
instructions
2.2.1.
2 User interface
2.2 I/O unit
VAM 12L
Figure 2.2.1-1 Arc sensor I/O unit 12L
1. Connection for portable arc sensor (VA 1 DP)
2. Programming switches
3. POWER indicator light, indicates that the supply
voltages of each component are in order.
4. COM indicator light, lit when the central unit and I/O
units are communicating.
5. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty arc sensor or changes in the amount of
sensors.
6. Connector sockets for the VX001 modular cables
7. LED lights indicating sensor activation
8. Terminal block for ten arc sensors
9. Portable arc sensor VA 1 DP connected and operational
10. Portable arc sensor activated
11. I/O unit trip relays activated
12. Terminal block for output relay
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2.2 I/O unit
2.2.2.
2 User interface
Operation and configuration
instructions
VAM 12LD
Figure 2.2.2-1 Arc sensor I/O unit VAM 12LD front and back panels
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Operation and configuration
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2 User interface
2.2 I/O unit
1. Connection for portable arc sensor (VA 1 DP)
2. Programming switches
3. POWER indicator light, indicates that the supply
voltages of each component are in order.
4. COM indicator light, lit when the central unit and I/O
units are communicating.
5. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty arc sensor or changes in the amount of
sensors.
6. Connector sockets for the VX001 modular cables
7. LED lights indicating sensor activation
8. Terminal block for ten arc sensors
9. Portable arc sensor VA 1 DP connected and operational
10. Portable arc sensor activated
11. I/O unit trip relays activated
12. Terminal block for output relays
13. Text pocket for sensor specific labels.
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2.2 I/O unit
2.2.3.
2 User interface
Operation and configuration
instructions
VAM 10L
Figure 2.2.3-1 Arc sensor I/O unit VAM 10L front panel
1. Connection for portable arc sensor (VA 1 DP)
2. Programming switches
3. POWER indicator light, indicates that the supply
voltages of each component are in order.
4. COM indicator light, lit when the central unit and I/O
units are communicating.
5. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty arc sensor or changes in the amount of
sensors.
6. Connector sockets for the VX001 modular cables
7. LED lights indicating sensor activation
8. Terminal block for ten arc sensors
9. Portable arc sensor VA 1 DP connected and operational
10. Portable arc sensor activated
11. I/O unit trip relay activated
12. Terminal block for external communication and BI/O
channels and trip signal
22
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Operation and configuration
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2.2.4.
2 User interface
2.2 I/O unit
VAM 10LD
Figure 2.2.4-1 Arc sensor I/O unit VAMP 10LD front and back panels
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2.2 I/O unit
2 User interface
Operation and configuration
instructions
1. Connection for portable arc sensor (VA 1 DP)
2. Programming switches
3. POWER indicator light, indicates that the supply
voltages of each component are in order.
4. COM indicator light, lit when the central unit and I/O
units are communicating.
5. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty arc sensor or changes in the amount of
sensors.
6. Connector sockets for the VX001 modular cables
7. LED lights indicating sensor activation
8. Terminal block for ten arc sensors
9. Portable arc sensor VA 1 DP connected and operational
10. Portable arc sensor activated
11. I/O unit trip relay activated
12. Terminal block for external communication and BI/O
channels and trip signal
13. Text pocket for sensor specific labels.
24
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Operation and configuration
instructions
2.2.5.
2 User interface
2.2 I/O unit
VAM 3L
Figure 2.2.5-1 Arc fibre sensor I/O unit VAM 3L front panel
1. Connection for portable arc sensor (VA 1 DP)
2. Programming switches
3. POWER indicator light, indicates that the supply
voltages of each component are in order.
4. COM indicator light, lit when the central units and I/O
units are communicating.
5. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty arc sensor or changes in the amount of
sensors.
6. Connector sockets for the VX001 modular cables
7. LED lights indicating sensor activation
8. Terminals for three fibre sensors
9. Portable arc sensor VA 1 DP connected and operational
10. Portable arc sensor activated
11. I/O unit trip relay activated
12. Terminal block for external communication and BI/O
channels and trip signal
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2.2 I/O unit
2.2.6.
2 User interface
Operation and configuration
instructions
VAM 3LX
Figure 2.2.6-1 Arc fibre sensor I/O unit VAM 3LX front panel
1. Connection for portable arc sensor (VA 1 DP)
2. Programming switches
3. POWER indicator light, indicates that the supply
voltages of each component are in order.
4. COM indicator light, lit when the central units and I/O
units are communicating.
5. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty arc sensor or changes in the amount of
sensors.
6. Connector sockets for the VX001 modular cables
7. LED lights indicating sensor activation
8. Terminals for three fibre sensors
9. Portable arc sensor VA 1 DP connected and operational
10. Portable arc sensor activated
11. I/O unit trip relay activated
12. Terminal block for external communication and BI/O
channels and trip signal
13. Sensitivity adjustments for each fibre sensor channels
26
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2.2.7.
2 User interface
2.2 I/O unit
VAM 4C
Figure 2.2.7-1 Current I/O unit VAM 4C front panel
1. Programming switches
2. POWER indicator light, indicates the supply voltages of
each component are in order.
3. COM indicator light, lit when the central units and I/O
units are communicating.
4. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty current transformer or phase current
unbalance.
5. Connector sockets for the VX001 modular cables
6. LED lights indicating that I> stage has started
7. Terminals for three current transformers
8. Current transformer programming switches
9. Overcurrent setting knob (IL1, IL3), setting range
0.5…6xIN
10. Overcurrent setting knob (IL1, I0), setting range
0.05…5xIN
11. I/O unit trip relay activated
12. Terminal block for external communication and BI/O
channels and trip signal
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2.2 I/O unit
2 User interface
Operation and configuration
instructions
13. Indicator leds for current setting
2.2.8.
VAM 4CD
Figure 2.2.8-1 Current I/O unit VAM 4CD front and back panel
28
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Operation and configuration
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2 User interface
2.2 I/O unit
1. Programming switches
2. POWER indicator light, indicates the supply voltages of
each component are in order.
3. COM indicator light, lit when the central units and I/O
units are communicating.
4. ERROR indicator light, indicates an internal fault
detected by the component‟s self-diagnostics. Such faults
include faulty current transformer or phase current
unbalance.
5. Connector sockets for the VX001 modular cables
6. LED lights indicating that I> stage has started
7. Terminals for three current transformers
8. Current transformer programming switches
9. Overcurrent setting knob (IL1, IL3), setting range
0.5…6xIN
10. Overcurrent setting knob (IL1, I0), setting range
0.05…5xIN
11. I/O unit trip relay activated
12. Terminal block for external communication and BI/O
channels and trip signal
13. Indicator leds for current setting
14. Text pocket
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2.2 I/O unit
2.2.9.
2 User interface
Operation and configuration
instructions
Multiplying relay VAR 4CE – front plate
Figure 2.2.9-1 Multiplying relay VAR 4CE
1. POWER LED, indicates that the external operating
voltage of +24 Vdc is connected.
2. Terminals for external operating voltage (+24 Vdc). Can
be supplied by central units or I/O units.
3. Terminals for incoming trip signal (external dry contact).
4. Terminals for outgoing trip signals (four potential-free
contacts, normally open).
30
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2.2.10.
2 User interface
2.2 I/O unit
Multiplying relay VAMP 4R - front plate
Figure 2.2.10-1 Multiplying relay VAMP 4R
1. POWER LED, indicates that the external operating
voltage of +24 Vdc is connected.
2. Terminals for external operating voltage (+24 Vdc). Can
be supplied by central units or I/O units.
3. Terminals for incoming trip signal (e.g. 24 Vdc from
VAM I/O unit binary output, 2 groups). Control voltage
range is 18 … 265 Vad/dc.
4. Terminals for outgoing trip signals (8 potential-free
contacts, 4 normally open, 4 normally closed).
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3.1 System status indications
3.
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
VAMP 221 arc protection
system operation and
troubleshooting
Under normal conditions the arc protection system requires
very little attention. The only servicing measures required in
field conditions are scheduled operational tests, the intervals
and scope of which depends on local legislation.
3.1.
System status indications
The arc protection system has an extensive indication for
different operation modes e.g. sensor activated, overcurrent
activated, arc protection tripped, and disturbance. System
configuration and measurements can also be checked during
operation.
Figure 3.1-1 VAMP 221 in normal mode
In normal mode, only the RUN and POWER indicator lights
are lit continuously. The COM indicator light blinks
occasionally, indicating communication between units and
during installation. The POWER indicator lights of the I/O
units must also be permanently lit and the COM indicator light
blink during communication.
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3.1.1.
3 VAMP 221 arc protection system
operation and troubleshooting
3.1 System status indications
Arc fault
Figure 3.1.1-1 VAMP 221 has tripped due to arc fault, light indication I/O
unit 1 sensor 1
Figure 3.1.1-2 VAM 10L indicates light on channel 1
When the arc protection activates due to arc fault, the alarm
relay activates and the trip indicator lights indicate the
activated output trip relays.
The display at the central unit shows which arc sensor first
gave the light information. This sensor information is only
visible in the RUN mode. If several sensors were activated
during the fault, the other activated sensors can be identified
from the arc sensor leds (I/O units‟ indicator lights). The
address of an activated sensor is stored in the fault memory,
even if activation did not lead to tripping. See Figure 3.1.1-2.
When the light information is transferred via the BI/O bus, the
source of the light information is not visible on the display and
the source must be located using other VAMP protection relays
connected with the BI/O bus.
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3.1 System status indications
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operation and troubleshooting
Operation and configuration
instructions
Figure 3.1.1-3 Reading and resetting the arc fault memory
To reset the arc fault memory, do the following:
 Press the S button to activate the RUN mode.

When the sensor address blinks on the display, press
the E button.
The fault memory resets automatically two hours after
activation.
3.1.2.
Overcurrent alarm
Figure 3.1.2-1 VAMP 221 activated due to overcurrent
Figure 3.1.2-2 VAM 4C indicates overcurrent on channel L2
34
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3.1 System status indications
When any component of the current measuring system detects
a current exceeding the setting value of the unit, it sends
current information to all other units. The I>int indicator light
is lit when the central unit measures the overcurrent. If the
current information is obtained from outside the central unit
(either through the BI/O bus or from a current I/O unit), the
I>ext LED indicator light is lit. The indicator light of the
activated stage is lit in the current I/O unit (VAM 4C).
Figure 3.1.2-2 Reading measured currents in the CURRENT mode
To read the current values measured by the central unit, do the
following:
 Select the CURRENT mode using the up and down
arrow keys.
VM221.EN018

The earth fault current/phase 2 current setting value
appears on the screen (I0).

Press the right arrow key to view the phase current
setting value and instantaneous values measured in
the current measuring channels.
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3.1 System status indications
3.1.3.
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
Self-supervision alarm
Figure 3.1.3-1 VAMP 221 has detected an internal fault
The system‟s self-supervision function continuously monitors
the operation of the arc protection system. The self-supervision
function supervises all the components and cables of the
system. When self-supervision detects an internal fault, it
activates the SF alarm relay in the central unit and lights the
ERROR indicator led.
Self-supervision generates a fault code for the detected fault,
which is stored in the fault memory of the central unit. The
fault memory may contain up to three faults (latest faults).
Fault codes can be red only in ERROR CODE mode.
Figure 3.1.3-2 Reading and resetting the fault memory
To reset the arc fault memory, do the following:
 Press the S button to activate the ERROR CODE
mode. The fault code starts blinking.
36

Press the E button to erase the latest fault code from
the memory. The next fault code, if any, appears on the
screen.

Once you have acknowledged each fault code
separately, the display becomes dark in the ERROR
CODE mode.
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3 VAMP 221 arc protection system
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3.1 System status indications
NOTE! If the fault that caused the fault code disappears by itself, the
fault code in the fault memory is also erased automatically two
hours after the disappearance of the fault.
3.1.4.
Fault codes
The following table lists the fault codes and gives a brief
description of each fault. A more detailed description of the
fault and advice on how to locate the faulty component will be
given below.
Fault code Fault type
Cause
10
System
configuration fault
Number of sensors
changed
11
Damaged I/O unit
Faulty I/O unit in the
system
12
Long BI/O bus
activation
Faulty arc sensor or too
low setting in the current
I/O unit
13
Communication
fault
Faulty communication
channel
14
BI/O channel fault
Communication between
two central units
interrupted
Current measuring
unbalance
Significant deviation
detected during current
measuring between
different phases
01 18
02 18
03 18
First two digits (01,02 or
03) indicate unbalanced
phase. For example, fault
code “03 18” indicates
unbalanced in phase three.
NOTE! Unbalance error has been removed from the
software version 3.12 onwards.
Table 3.1.4-1 Self-supervision fault codes
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3.1 System status indications
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
System configuration fault (fault code 10)
Figure 3.1.4-1 The system indicates a configuration fault in the I/O unit
whose address is 01
This fault code indicates a change in system configuration.
Potential causes:
1. Sensors have been added to the system after system
implementation.
Corrective measures:
 Check the sensor connections of the I/O unit indicated
by the fault code and the programmed configuration in
the INFO mode (see Chapter 3.4.1).

If the number of sensors in the I/O unit is higher than
the number given by the central unit, re-configure the
system (see Chapter 3.4).
2. A sensor connected to the system or its wiring is faulty.
Corrective measures:
 Check the configuration in the INFO mode (see
Chapter 3.4.1)

If the number of sensors in the unit is lower than the
number given by the central unit, check the unit
wiring visually and tighten the connections.

Configure the system (see Chapter 3.4)

If the system still cannot find all the sensors,
disconnect the sensor wires one at a time and configure
the system after each disconnection.

Once you have identified the faulty sensor, check the
wiring and replace the sensor, if necessary.
NOTE! The current I/O unit normally indicates three sensors, even if
the number of current transformers connected is only one or
two.
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3 VAMP 221 arc protection system
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3.1 System status indications
Damaged I/O unit (fault code 11)
Figure 3.1.4-2 The system indicates a fault in the I/O unit whose address is
01
This fault code indicates a damaged I/O unit.
NOTE! While this fault is activated, no sensor activation connected to
the faulty unit will be transferred to the central unit.
Potential causes:
1. A sensor connected to the unit has remained activated
for longer than three seconds.
Corrective measures:
 Check the physical location of the activated sensor.

Strong, direct light may activate the sensor

If the arc sensor is not exposed to direct light, remove
one of the sensor conductors to check that the sensor
cable is not short-circuited. If the fault disappears, the
sensor or cable is probably damaged. In this case,
replace the faulty sensor.

In the overcurrent unit, check the range of the
overcurrent setting and whether the nominal values of
the current transformers‟ secondary circuits are
compatible.
2. The modular cable connecting the units is loose or faulty.
Corrective measures:
 Check the connection and status of the modular cable
connected to the I/O unit indicated in the fault code.
3. The I/O unit has no supply voltage.
Corrective measures:
 Check whether the POWER indicator light of the I/O
unit is lit.

VM221.EN018
If the light is not lit, measure if the I/O received a
supply voltage of 24 Vdc (X2-1 +24 Vdc, X2-2 GND). If
the voltage supply is in order but the light is not lit,
replace the faulty I/O unit.
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3.1 System status indications
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions

If there is no voltage supply, find out whether it should
be supplied from the central unit or an external voltage
supply. Check the voltage of the external voltage
supply, if any.

If the voltage is supplied by the central unit, measure
its 24 Vdc supply voltage (X3-2 +24 Vdc, X3-1 GND). If
there is no voltage, replace the central unit.
4. The I/O unit is faulty.
Corrective measures:

If the TEST/ERROR indication light is permanently lit
and no sensor is activated, either the modular cable
(see above) or the I/O unit is faulty. In this case the I/O
unit must be replaced.
Too long BI/O bus activation (fault code 12)
Figure 3.1.4-3 The system indicates that the BI/O bus has remained
activated for longer than three seconds
This fault code indicates that the system‟s BI/O bus has
remained activated for too long for normal operation.
Potential causes:
1. A sensor connected to the unit via the BI/O bus has
remained activated for longer than three seconds.
Corrective measures:
 Check the physical location of the activated sensor.
40

Strong direct light may activate the sensor

If the arc sensor is not exposed to direct light, remove
one of the sensor conductors to check that the sensor
cable is not short-circuited. If the fault disappears, the
sensor or cable is probably faulty. In this case, replace
the faulty sensor.

In the overcurrent unit, check the range of the
overcurrent setting and whether the nominal values of
the current transformers‟ secondary circuits are
compatible.
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3 VAMP 221 arc protection system
operation and troubleshooting
3.1 System status indications
Communication fault (fault code13)
Figure 3.1.4-4 The system indicates a disturbance in the communication
between units.
This fault code indicates faulty operation of the system‟s
communication bus.
Potential causes:
1. The modular cable between units or external wiring has
become disconnected or faulty.
BI/O channel fault (fault code 14)
Figure 3.1.4-5 The system indicates a disturbance in the communication
between two central units connected via a BI/O bus.
This fault code indicates a fault in the system‟s BI/O bus.
Potential causes:
1. Fault in the BI/O system cable
Corrective measures:
 Check the cable. If necessary, repair or replace the
cable.
2. The central unit connected to the BI/O is faulty.
Corrective measures:
 Check the central units. If necessary, replace a central
unit.
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3.1 System status indications
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
Unbalance fault (fault code18)
NOTE! Unbalance error has been removed from the software version
3.12 onwards.
Figure 3.1.4-6 The system indicates that the current measuring unit has
detected significant unbalance between the measuring channels.
This fault code indicates that the measuring channels of the
current measuring unit connected to the system have detected
significant unbalance between the different measuring
channels. If the channel IL2/I0 of the current measuring unit is
used to measure phase current, the IL2/I0 settings must be the
same as for IL1/IL3. In this case the IL2/I0 channel is also covered
by the unbalance alarm; otherwise, the system only compares
the unbalance between two phase currents.
The factory setting for unbalance is 20% of the measured
currents. The alarm does not function with currents below
5 %*In, which effectively prevents false alarms.
Potential causes:
1. The current transformers connected to the current
channels have different transformation ratios.
Corrective measures:
 Check the transformation ratios. The zero current
measurement is normally connected to the IL2/I0
channel. This makes it possible to set different values
to the channels.

42
Connect similar current transformers to the IL1 and IL3
channels.
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3 VAMP 221 arc protection system
operation and troubleshooting
3.2 Using programming
switches
2. The secondary circuit of the current transformers is
short-circuited.
Corrective measures:
 With a clip-on ammeter, check whether the measuring
current travels through the current measuring unit.

Check which other components are connected to the
current circuit and whether the current travels
through them,

Once you have found the short circuit, check the status
of the current circuit before removing the short circuit.
3. The current measuring channel is faulty.
Corrective measures:
 With a clip-on ammeter, check whether the measuring
current travels through the current measuring unit.

If the current travels through the unit but the device
does not measure any current, the central unit must be
replaced.
NOTE! Do not open a loaded current measuring circuit before you have
reliably short-circuited the secondary circuit of the current
transformer. An open secondary circuit in the current
transformer may destroy the current transformer!
3.2.
Using programming switches
Before system implementation, check the positions of the
programming switches in accordance with the following basic
principles:
Each I/O unit connected to the communication bus has its own
address (each I/O unit have an unique address).
Set the programming switches before connecting the supply
voltage.
If you have to change the switch positions once the supply
voltage has been connected, disconnect the supply voltage to
the unit in question for the duration of the programming and
re-configure the system.
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3.2 Using programming
switches
3.2.1.
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
Central unit’s programming switches
The central unit‟s programming switches mainly affect the
operation of the central unit‟s trip relays.
Figure 3.2.1-1 Programming switches in the front plate of the central unit
Switch 1 determines trip relay latch. When the switch is in the
OFF position the trip relays remain engaged after the arc trip
until the fault is acknowledged at the central unit‟s panel (see
3.1.1). In the ON position the trip relays follow the arc fault.
Switch 2 determines the arc trip criteria. When the switch is in
the ON position the trip is based on light information only; in
the OFF position both fault currents exceeding the current
limit and light information are required.
Switch 3 determines the operating speed of the second trip
relay (TRIP 2 and 4) of each tripping group. When the switch
position is OFF, the trip relays act as CBFP as follows: TRIP 2
acts as CBFP if central unit measures overcurrent and any of
the light zones are activated. TRIP 4 acts as CBFP if
overcurrent information comes from other device and any of the
light zones are activated. Tripping delay time either 100 ms or
150 ms. In the ON position the trip relays serve as fast relays
(delay time 7 ms).
Switch 4 determines the CBFP operating speed. When the
switch is in the ON position the trip delay time is 150 ms, and
in the OFF position 100 ms.
Switches 5, 6 and 7 determine the relay connection matrix. In
the matrix the arc trips in different zones can be directed to
two separate tripping groups (see Figure 3.2.1-1).
44
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3 VAMP 221 arc protection system
operation and troubleshooting
3.2 Using programming
switches
Switch 8 determines the mode of the central unit. When the
switch is in the ON position the central unit operates in SUBUNIT mode; in the OFF position the central unit serves as the
central unit for the entire system.
NOTE! If several central units are connected to the same
communication bus, only one unit may operate in CENTRAL
UNIT mode.
3.2.2.
Programming switches - I/O units
The programming switches of the I/O units are used to
determine the unit address and trip relay function.
The system accommodates up to 16 I/O units. Eight addresses
are reserved for each protection zone:
Zone 1 addresses 0…7
Zone 2 addresses 8…15
Zone 3 addresses 16…23
Zone 4 addresses 24…31
The programming switches have different weight factors. To
create an address for the I/O unit, turn switches with different
values to the ON position and calculate the sum of their weight
factors. The following table shows the weight factors of each
programming switch.
Switch No. Weight factor
8
1
7
2
6
4
5
8
4 *)
16
Table 3.2.2-1 Programming switch weight factors, *) VAM 12L / VAM
12LD, VAM 10L / VAM 10LD, VAM 3L and VAM 3LX only
The address range for current I/O units is (32),33…46. Do not
use address 32, because in this case the current I/O unit
operates in CENTRAL UNIT mode and the actual central unit
must be set to SUB-UNIT mode (see chapter 3.2.1). To
determine the address of a current I/O unit, add the sum of the
weight factors to 32 (for example, programming switch values
total 7, address of the current I/O unit 32 + 7 = 39).
NOTE! Do not use 32 as the unit address if system have central unit.
Other programming switches have different functions in
different units, as described below.
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3.2 Using programming
switches
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
Attention! Note the position of the VAM 12LD, VAM 10LD and VAM 4CD
dip switches.
Figure 3.2.2-1 Programming switches for VAM 3L, VAM 3LX, VAM 10L,
VAM 10LD, VAM 12L and VAM 12LD
VAM 10L / VAM 10LD, VAM 3L / VAM 3LX
Switch 1 determines which light activation activates the arc
stage. When the switch position is ON, the arc stage only
activates on the light information provided by the unit's own
sensors. In OFF position the arc stage activates on the light
information received from any unit in the same protection zone.
( Please see Technical description part , Chapter 3.1.
Application examples)
Switch 2 determines the trip relay latch. When the switch is in
ON position the trip relay remains engaged after the arc trip
until the fault is acknowledged at the central unit‟s panel (see
3.1.1). In the OFF position the trip relay follows the arc fault.
Switch 3 determines the arc trip criteria. When the switch is in
ON position the trip is based on light information only; in OFF
position both fault currents exceeding the current limit and
light information are required.
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3 VAMP 221 arc protection system
operation and troubleshooting
3.2 Using programming
switches
VAM 12L / VAM 12LD
When the L>ext/int DIP switch is in “L>int” position, the
output relays are only activated by dedicated sensors.
SENSOR 1 activates T1.
SENSOR 2 activates T2.
SENSOR 3 activates T3.
SENSORS 4 to 10 are normally sending light information to
system according to zone setting.
If the switch is in “L>ext” position, all output relays are also
controlled by the selected zone information. This activation
source can be any sensor channel 4 to 10 or from an external
I/O unit configured to the same zone.
VAM 4C / VAM 4CD
Figure 3.2.2-2 Programming switches of VAM 4C / VAM 4CD
SW NO:
8
7
6
5
Weight factor
1
2
4
8
Table 3.2.2-2 VAM4C dipswitches weight factors
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3.3 Adjusting the overcurrent
setting
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
SW1 switch settings
Switch
1
2
3
4
5
6
7
8
Definition
Zone 1
Zone 2
Zone 3
Zone 4
Addr
Addr
Addr
Addr
Description
System operating zone 1 (light information)
System operating zone 2 (light information)
System operating zone 3 (light information)
System operating zone 4 (light information)
Address weighting coefficient 8
Address weighting coefficient 4
Address weighting coefficient 2
Address weighting coefficient 1
SW2 switch settings
Switch
1
2
Definition
Latch
1A / 5A *
Description
Position ”0” (switch down):
trip relay is only operational while the
protection is activated
Position ”1” (switch up):
trip relay changes to latching status after
trip
Position ”0” (switch down): rated secondary
current of the current transformer is 1 A
Position ”1” (switch up):
rated secondary current of the current
transformer is 5 A
3
4
I> out
I> in
Position ”0” (switch down):
unit does not transmit the current criteria to
other units
Position ”1” (switch up):
unit transmits the current criteria to other
units
Position ”0” (switch down):
unit does not receive the current criteria
from other units
Position ”1” (switch up):
unit receives the current criteria from other
units
*) As in CT
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3.3.
3 VAMP 221 arc protection system
operation and troubleshooting
3.3 Adjusting the overcurrent
setting
Adjusting the overcurrent setting
In the VAM 221 Arc Protection System all the overcurrent
settings are expressed as multiples of the secondary rated
current. For example, with a secondary selection of 5 A, the
setting value 1.5 corresponds to a current of 7.5 A in the
secondary circuit of the circuit breaker.
Adjusting the overcurrent setting is most convenient following
the setting value in the CURRENT operating mode.
NOTE! The overcurrent settings will be changed regardless of the
mode of the central unit. The new settings will be effective
immediately. However, settings should be adjusted in
CURRENT mode only, since the new setting value is visible
immediately in this mode.
Figure 3.3-1 Adjusting overcurrent settings
Select the secondary In of the CT using the selection switch.
NOTE: VAMP 221 4 xx xxx model does not include CT selection
switch!
Select the CURRENT mode using the up and down arrow keys.
The earth fault current/phase current L2 setting value appears
on the screen. Adjust the L2/I0 setting value (0.05…5.0*In) from
the potentiometer.
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3.3 Adjusting the overcurrent
setting
3 VAMP 221 arc protection system
operation and troubleshooting
Operation and configuration
instructions
Press the right arrow key to view the current phase setting
value. Adjust the L1/I0 setting value (0.5…6.0*In) using the
potentiometer.
Figure 3.3-2 Adjusting the current setting in the central unit
The principles for changing the current setting in VAM 4C
units are the same as for the central unit. You can see the
estimated current setting from the led bar on the right side of
the unit.
The most accurate way of setting the current limit for the unit
is as follows:
 Turn the potentiometer to the maximum value.

Feed a test current corresponding to the required
setting using a testing device.

Lower the setting until the current activation indicator
led of the I/O unit and the I>ext indicator led in the
central unit are lit.
Figure 3.3-3 Adjusting the current setting in VAM 4C
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3.4.
3 VAMP 221 arc protection system
operation and troubleshooting
3.4 Configuration of the arc
protection system
Configuration of the arc protection
system
Before system configuration, check the following:
 Have all the system sensors been connected to the I/O
units?

Have all the modular cables between I/O units been
connected?

Have all the I/O units been assigned individual
addresses before the supply voltage is connected?
Figure 3.4-1 Reading system configuration into the central unit's memory
Once you have checked these and made any necessary
corrections, you can connect supply voltage and read the
system configuration into the central unit's memory as follows:
 Select the INSTALL mode using the up and down
arrow keys.

Press the S button to activate the INSTALL mode. The
display starts blinking.

Press E to start the reading.

The central unit locates all I/O units connected to the
system and their sensors. This takes some seconds.
Once the configuration is complete, the display shows
the number of I/O units and sensors.
NOTE! The current I/O unit normally indicates three sensors, even if
the number of current transformers connected is only one or
two.
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3.4 Configuration of the arc
protection system

3 VAMP 221 arc protection system
operation and troubleshooting
After reading the system configuration, the central unit
automatically changes to normal mode.
 Check the configuration in the INFO mode according to
section 3.4.1.

3.4.1.
Operation and configuration
instructions
When configuring arc protection system with multiple
central units, disconnect I/O-units from central units in
slave mode during their installation procedure.
Checking system configuration
To check system configuration in INFO mode, do the following:
Figure 3.4.1-1 Checking system configuration in INFO mode

Select the INFO mode using the up and down arrow
keys.

You can read the I/O unit address and the number of
sensors stored in the memory from the central unit's
display.

Use the side arrow keys to move between the I/O units.

When the correct I/O unit shows on the display, press S
to activate the INFO mode.

To check the number of connected sensors, press E.

The central unit will display the number of sensors
connected to the I/O unit for two seconds, after which it
will show the number of sensors stored in the memory.
If the numbers are not the same, see section 3.1.3.
NOTE! Checking system configuration will not affect the configuration
stored in the central unit's memory. If you wish to modify the
configuration, see section 3.4.
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4.
4 System commissioning
4.2 Performing the testing
System commissioning
The following equipment is required for commission testing:
Current supply for feeding either primary or secondary current.
A flashlight or other source of bright light
A multi-function measuring instrument including a clip-on
ammeter and resistance measurement for verifying the
operation of potential-free output contact.
The flashlight must be able to provide a sufficiently long light
pulse for the sensors.
If you are using a torch, adjust the beam until its edge is sharp
to ensure sensor activation.
Commissioning testing must be documented in writing,
detailing system operation and settings.
4.1.
Testing - general
Before initiating the testing, determine the system
configuration and scope. Pay particular attention to safety
during the work and ensure the testing will not cause
unnecessary tripping of feeders that are in use.
Determine the following:
Is any unit connected to another central unit or protection relay
via a BI/O bus?
Where have the trips been wired to from the central units and
I/O units?
What is the total number of I/O units and sensors? Has the
system been configured as instructed? (see 3.4)
Has any other protection or measuring equipment been
connected to the current measuring circuits?
Have any sensors been placed near live components?
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4.3 Periodic commissioning
4.2.
4 System commissioning
Operation and configuration
instructions
Performing the testing
The system should be tested systematically, since correct
operation of the arc protection system guarantees personal
safety.
Activate each sensor separately and ensure at the central unit
that the light information travels through the entire
communication channel. Enter the test result of each sensor
under item 4 of Table 4.2-1, for example.
Once you have tested each sensor channel separately, activate
a few sensor channels‟ together with current criteria and verify
tripping (preferably at least one trip per I/O unit). Enter the
activated channels under items 5 and 6 and the trip in column
7 in Table 4.2-1.
If light or current identifier information is transferred from one
central unit to another or between relays and the central unit
through the BI/O bus, ensure that this information is
transferred between the central units or between the relays
and the central unit. Enter the light or current information ( L
> or I > ) received by the central unit under item 2 in Table 4.212.
Ensure the selectivity of the protection zones.
4.3.
Periodic commissioning
We recommend that VAMP 221 arc protection system
functionality shall be tested every five years or according to the
law.
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Operation and configuration
instructions
4 System commissioning
4.3 Periodic commissioning
Name of station:
Switchgear:
Date of commission:
Commissioners:
Standards used:
VAMP 221 serial number (1
Does the unit
receives BIOmessage from
other unit (2
Light
Current
Y/N
Y/N
Address of I/O
unit (3
Sensor
channel
Sensor
channel
status
Y/N(4
Tripping from current
and
Current
Y/N (5
Tripping
ensured Y/N
(7
Light Y/N
(6
1
2
Selectivity of
tripping ensured(8
Y/N
3
4
5
6
7
8
9
10
Table 4.3-1 Example of testing protocol
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4.3 Periodic commissioning
4 System commissioning
Operation and configuration
instructions
Descriptions:
1. Information available on the unit‟s name plate.
2. Read the activation of the BI/O channel from the central
unit‟s display.
3. Read the I/O unit‟s address from the address selection
switches.
4. Read the address of the activated indicator channel from
the display of the central unit.
5. Current value exceeds the I> setting? ( Y / N)
6. Light information activated L>? ( Y / N)
7. Trip verified either from relay output contacts or breaker
operation.
8. Selectivity checked though cross-testing.
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Technical description
Table of Contents
Table of Contents
1. Introduction .......................................................................... 60
1.1. Purpose ............................................................................. 60
1.2. Main properties ................................................................ 60
2. Functions ............................................................................... 62
2.1. Protection functions ........................................................ 62
2.1.1. Arc (fault) protection (50ARC) ............................. 62
2.1.2. Unbalance alarm ................................................... 63
2.1.3. Circuit breaker failure protection stage (50BF) .. 63
2.2. Measurements ................................................................. 64
2.3. Output relay functions .................................................... 64
2.4. Self-supervision ................................................................. 65
2.5. BI/O bus interface ........................................................... 65
2.5.1. Connection to another central unit .................... 66
2.5.2. Connection to I/O unit........................................... 67
2.5.3. Connection to protection relay ........................... 67
3. Application examples ......................................................... 68
3.1. Selective fibre solution, 3 incomers, 3 protection zones,
CBFP in use ....................................................................... 68
3.1.1. Functional system description .............................. 70
3.1.2. System components ............................................... 70
3.1.3. System configuration ............................................. 71
3.1.4. Testing of example application ............................ 75
3.2. Selective sensor solution, 2 incomers, 2 protection
zones, CBFP in use ........................................................... 77
3.2.1. Functional system description .............................. 78
3.2.2. System components ............................................... 78
3.2.3. System configuration ............................................. 79
3.2.4. System testing .......................................................... 82
3.3. Selective point sensor solution, multiple incomers,
multiple protection zones, CBFP in use ........................ 84
3.3.1. Functional system description .............................. 85
3.3.2. System components ............................................... 86
3.3.3. System configuration ............................................. 87
3.3.4. System testing .......................................................... 91
3.4. Arc protection current measuring based on earthfault current ...................................................................... 93
3.4.1. Functional system description .............................. 94
4. Interfaces .............................................................................. 95
4.1. Rear panel view .............................................................. 95
4.2. Analogue measurements .............................................. 97
4.3. Digital inputs (BI/O bus) .................................................. 98
4.4. Auxiliary power supply .................................................... 98
4.5. Output relays.................................................................... 99
4.5.1. VAMP 221 ................................................................. 99
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Table of Contents
Technical description
4.5.2. VAM 10L / VAM 10LD, VAM 3L / VAM 3LX and
VAM 4C / VAM 4CD ............................................... 99
4.5.3. VAM 12L / VAM 12LD ............................................. 99
4.6. Block diagram................................................................ 100
4.6.1. VAMP 221 ............................................................... 100
4.6.2. VAM 12L and VAM 12LD ...................................... 101
4.6.3. VAM 10L and VAM 10LD ...................................... 103
4.6.4. VAM 3L ................................................................... 104
4.6.5. VAM 3LX ................................................................. 104
4.6.6. VAM 4C / VAM 4CD ............................................. 105
4.6.7. VAMP 4R ................................................................. 106
4.6.8. VAMP 221 signaling diagram .............................. 107
4.7. Connection examples .................................................. 108
4.7.1. VAMP 221 ............................................................... 108
4.7.2. VAM 12L ................................................................. 109
4.7.3. VAM 12LD............................................................... 110
4.7.4. VAM 10L ................................................................. 111
4.7.5. VAM 10LD............................................................... 112
4.7.6. VAM 3L / VAM 3LX ................................................ 113
4.7.7. VAM 4C .................................................................. 114
4.7.8. VAM 4CD ............................................................... 115
4.7.9. VAMP 4R ................................................................. 116
5. Technical data ................................................................... 117
5.1. Connections ................................................................... 117
5.1.1. Measuring circuits ................................................. 117
5.1.2. Auxiliary power supply ......................................... 118
5.1.3. Digital inputs (BI/O bus) ....................................... 119
5.1.4. Trip contacts .......................................................... 120
5.1.5. Alarm contacts ..................................................... 122
5.1.6. Communication bus interface ........................... 122
5.1.7. Local serial communication port ....................... 122
5.2. Tests and environmental conditions ........................... 123
5.2.1. Electrical safety tests ............................................ 124
5.2.2. Mechanical tests .................................................. 124
5.2.3. Environmental conditions .................................... 125
5.2.4. Casing .................................................................... 125
5.2.5. Package................................................................. 126
5.3. Protection stages .......................................................... 126
5.3.1. Arc (fault) protection ........................................... 126
5.3.2. Circuit breaker failure protection stage (50BF) 127
5.4. Unbalance alarm .......................................................... 127
6. Construction ....................................................................... 128
6.1. Dimensional drawings................................................... 128
6.1.1. VAMP 221 panel mounting and self-flush ......... 128
6.1.2. VAM 12L din rail mounting .................................. 129
6.1.3. VAM 12LD flush mounting.................................... 130
6.1.4. VAM 10L din rail mounting .................................. 131
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Table of Contents
6.1.5. VAM 10LD flush mounting.................................... 132
6.1.6. VAM 3L / 3LX din rail mounting ........................... 133
6.1.7. VAM 4C din rail mounting ................................... 134
6.1.8. VAM 4CD flush mounting .................................... 135
6.1.9. VAMP 4R din rail mounting .................................. 136
6.1.10. Fiber sensor mounting .......................................... 137
6.1.11. Pipe sensor mounting ........................................... 138
6.1.12. Point sensor mounting .......................................... 139
6.1.13. VAR 4CE ................................................................. 140
6.1.14. VA 1 DA .................................................................. 140
6.1.15. VA 1 EH ................................................................... 140
6.1.16. VYX 001 ................................................................... 141
6.1.17. VYX 002 ................................................................... 142
6.1.18. VYX 076 ................................................................... 143
6.1.19. VYX 077 ................................................................... 143
6.2. Unit installation ............................................................... 144
6.2.1. VAMP 221 ............................................................... 145
6.2.2. I/O units .................................................................. 148
6.2.3. Arc sensors ............................................................. 151
6.2.4. VAR 4 CE ................................................................ 155
6.2.5. VAMP 4R ................................................................. 156
6.2.6. Wiring multiple central units ................................ 157
7. Order information ............................................................... 159
8. Appendix/ Earthing instruction ......................................... 160
9. Reference information ....................................................... 162
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1.2 Main properties
1.
1 Introduction
Technical description
Introduction
This User’s Manual contains a functional description of the
protection system, application examples and technical data.
Installation and user instructions can be found in the
Operation and configuration instructions.
1.1.
Purpose
The main purpose of the arc protection relay is to protect an
electrical installation against the destructive impact of an arc
short circuit, minimize physical damages and mitigate
potential injuries. The arc protection relay VAMP 221 was
originally designed for this purpose.
In addition, the VAMP 221 Arc Protection System has several
user-friendly features, such as four separate protection zones;
current measurement indication in the central unit; versatile,
partially programmable output relays; comprehensive selfsupervision of functions; and the ability to interconnect VAMP
protection relays and arc protection via the BI/O bus.
The VAMP 221 Arc Protection System can be easily installed
on both new and existing low and medium voltage switchgear.
1.2.
Main properties
VAMP 221 is a modular system consisting of a central unit, I/O
units, arc sensors and possible multiplying relays.
Due to its modularity, the system is suitable for a range of arc
protection applications, from simple systems with one central
unit and one I/O unit to more complex solutions comprising
several central units used for selective arc protection.
The central unit VAMP 221 includes all arc protection system
functions, such as overcurrent and arc supervision.
The I/O unit VAM 10L / VAM 10LD, VAM 12L / VAM 12LD
serves as link between the system’s point sensors and the
central unit. Each I/O unit has connections for ten arc sensors,
one portable pin sensor and one trip output.
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Technical description
1 Introduction
1.2 Main properties
The I/O unit VAM 3L/VAM3LX serves as link between the
system’s fibre sensors and the central unit. Each I/O unit has
connections for three arc sensors, one pin sensor and one trip
output.
The I/O unit VAM 4C / VAM 4CD serves as link between the
system’s current inputs and the central unit. Each I/O unit has
connections for three current transformers and one trip output.
The arc sensor VA 1 DA is activated by strong light. The sensor
transforms the light information into the current signal, which
is forwarded through the I/O unit to the central unit. The arc
sensor VA 1 EH also operates on the same principle.
The pin sensor VA 1 DP has the same functions as an arc
sensor but can be temporarily connected to an I/O unit. The
sensor can be fixed to the breast pocket of a technician to
improve safety when working with live switchgear.
The multiplying relay VAR 4CE contains four normal open trip
relays. The multiplying relay can be connected to the central
unit or to I/O units.
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2.1 Protection functions
2 Functions
2.
Functions
2.1.
Protection functions
Technical description
The arc protection functions of the arc protection relay are
always operational. You can select the circuit breaker failure
protection stage using the programming switches.
2.1.1.
Arc (fault) protection (50ARC)
Arc protection involves the central unit, I/O units, a range of
light sensitive elements and a instantaneous overcurrent stage
module. The module can be connected to 1, 2 or 3-phase current
or earth-fault current and 2-phase current.
Arc protection is operational when the light I/O unit transfers
the light information from the arc sensor to the system and,
simultaneously, overcurrent stage of the I/O unit status. These
signals are visible in all system components, each of which
generates an arc fault trip according to its own settings. The
system or a system component can also be programmed to
operate on light information alone.
The operating time of the arc protection stage is 7 ms.
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2.1.2.
2 Functions
2.1 Protection functions
Unbalance alarm
NOTE! Unbalance error has been removed from the software version
3.12 onwards.
The purpose of the unbalance alarm is to identify an abnormal
distribution of load currents in the measuring circuit. Such
abnormal situations occur mainly in connection with
equipment failure or faulty secondary circuit wiring in current
transformers.
The system uses either two-phase or three-phase connections.
The system uses a two-phase connection, when the L2/I0
overcurrent setting deviates from the L1/L2 overcurrent limit
by more than 90%. When the settings are approximately the
same, the phase discontinuity function monitors all three
current phases.
The current measuring channels L1 and L3 must be used in
connection with two-phase current measuring. Single-phase
current or earth-fault current must always be connected to the
current measuring channel L2/ I0; otherwise, an unbalance
error will occur.
The protection is solely based on measuring the magnitudes of
the phase currents. If the detected deviation exceeds 90%, the
system gives an unbalance alarm after a 10-second delay time.
The alarm does not affect other operations of the arc protection
system.
The phase discontinuity settings are non-adjustable, since all
the setting values have been programmed in the current
measuring unit.
2.1.3.
Circuit breaker failure protection stage (50BF)
The circuit breaker failure protection stage (CBFP) is based on
operating time monitoring. The operating time is calculated as
the time from the tripping of the trip relay until it resets. If the
operating time exceeds the CBFP operating delay time, it
activates another output relay, which remains active until the
primary trip relay resets.
In CBFP, TRIP 2 provides CBFP if master unit measures
overcurrent and any light zone is activated. TRIP 4 provides
CBFP if overcurrent information comes from other unit e.g.
VAM 4C and any light zone is activated.
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2.3 Output relay functions
2 Functions
Technical description
CBFP setting parameters:
VAMP 221
2.2.
Parameter
SW1-3
Value
ON/OFF
SW1-4
ON/OFF
Unit
Default
OFF
OFF
Description
CBFP options:
OFF: CBFP in use
ON: CBFP not in use
CBFP delay time options:
OFF: delay time 100 ms
ON: delay time 150 ms
Measurements
The central unit VAMP 221 has a three-phase current
measuring function that can be used to measure either three
phase currents or two phase currents and a summation
current. Current measuring is indicated on the display of the
central unit.
The current I/O unit VAM 4C has a current measuring function
but no indication. The unit only gives an indication when the
measured current exceeds the current limit setting.
2.3.
Output relay functions
The central unit VAMP 221 has four trip relays, which can be
controlled as two tripping groups (two contacts in each group).
One contact in each group can be used to trip the CBFP stage.
The central unit also has a general contact for arc fault trip
alarms and two contacts for internal fault alarms.
The tripping groups are controlled using the trip relay matrix.
Figure 2.3-1 VAMP 221 relay matrix
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Technical description
2 Functions
2.5 BI/O bus interface
The output trip relays of the central unit can also operate
selectively during arc faults in different protection zones.
The output trip relays of the I/O units can also be used for
tripping in different protection zones. Each I/O unit has one
output trip relay, which trips either in faults in its own zone
(VAM 10L and VAM 3L / VAM 3LX) or in the programmed zone
(VAM 4C). I/O unit VAM 12L / VAM 12LD comprises 3 output
relays.
If necessary, trips can be multiplied using the multiplying relay
VAR 4CE.
2.4.
Self-supervision
The system monitors the microcontroller and related circuit
operation, and program execution with a separate supervision
circuit. In addition to system supervision, the circuit attempts
to re-start the microcontroller in the event of a fault. If the restart fails, the supervision circuit gives a self-supervision alarm
on a permanent internal fault. In case of am microcontroller
failure the trip functions still works but latching is blocked.
Whenever the supervision circuit detects a permanent fault in
any system component it ignores activation signals coming
from this component e.g. faulty arc sensor.
The supervision circuit also monitors the internal operating
voltage. In the event of loss of operating voltage in the central
unit, the system automatically gives an IF alarm, since the IF
output relay operates on steady-state current; in other words,
the IF relay is actuated when the operating voltage is on and
within the permitted limits.
2.5.
BI/O bus interface
All VAMP 221 Arc Protection System units can receive or
transmit light and/or current criteria (depending on the unit)
on the BI/O bus.
VAMP 221 can send BI/O information to two central units or
two protection relays. If there are more than two recipients of
BI/O information or the length of the BI/O bus exceeds 100 m,
the BI/O bus must be equipped with a line amplifier as shown
in the figure below.
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2.5 BI/O bus interface
2 Functions
Technical description
Figure 2.5-1 We recommend the 3P001 as the line amplifier
2.5.1.
Connection to another central unit
In applications with multiple central units the central units
can be interconnected also via BI/O connections (binary
input/output). In this case, each part of the system can control
four protection zones per system communication bus. In this
case, arc and overcurrent information is transferred between
the central units without address information.
The following BI/O connections are included in the standard
delivery:
La>in
Lb>in
Ib> in/out
La> out
Lb> out
GND
66
X3-8
X3-9
X3-10
X3-11
X3-12
X3-13,
X3-14
Arc input, tripping group 1
Arc input, tripping group 2
Overcurrent input/output
Arc output, tripping group 1
Arc output, tripping group 2
Grounding for all BI/O signals
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Technical description
2.5.2.
2 Functions
2.5 BI/O bus interface
Connection to I/O unit
Each I/O unit also has a BI/O bus. The light I/O units (VAM
12L / VAM 12LD,VAM 10L / VAM 10LD, VAM 3L / VAM 3LX)
can transmit trip information to the central unit or current I/O
unit. The current I/O unit (VAM 4C / VAM 4CD) can receive
the light information and send the current information either
to other I/O units or the multiplying relay.
The following DI and DO connections are included in the
standard delivery of VAM 10L and VAM 3L / VAM 3LX units:
DI
GND
Trip out
GND
X2-8
X2-7
X2-10
X2-9
Zone shift 12, 21, 34, 43
Trip information, 24 V dc
Trip information earth
The following DI and DO connections are included in the
standard delivery of VAM 4C units:
L>in
GND
Trip out
GND
2.5.3.
X2-8
X2-7
X2-10
X2-9
Light input, 24-48 V dc
Light input earth
Trip information
Trip information earth
Connection to protection relay
The VAMP 221 Arc Protection System can also send light or
current criteria to other VAMP protection relays, if they are
equipped with an arc protection circuit board (optional). The
voltage level of the connected signal must be 48 V dc, which
means the I/O units alone cannot send their signals directly to
the protection relay. See the relay manual for more information
on BI/O bus connections.
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3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
3.
3 Application examples
Technical description
Application examples
This Chapter describes some technical application examples of
the VAMP 221 arc protection system.
3.1.
Selective fibre solution, 3 incomers, 3
protection zones, CBFP in use
Figure3.1-1 Selective fibre solution, 3 incomers, 3 protection zones, CBFP in
use
Figure 3.1-2 Selective fibre solution, 3 power flow directions, 3 protection
zones, CBFP in use
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Technical description
3 Application examples
3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
Figure 3.1-3 Selective feeder solution with VAM 3L in internal mode (dip sw
# 1 “ON”)
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3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
3.1.1.
3 Application examples
Technical description
Functional system description
The protected installation is medium voltage switchgear with
three separate incomers. The switchgear has longitudinal
busbars between the incomers.
To minimize the fault zone, the switchgear is divided into three
separate zones when structurally possible. The different zones
are limited by circuit breakers and monitored by arc sensors
(2,4 and 5). The system receives current criteria from the
central unit (1) and current I/O units (3 and 6), which have
been installed at the incomers.
Switchgear back-up protection has been ensured by wiring the
CBFP contacts to the upper side of the supply transformers.
When setting the CBFP delay time, the standard break-time of
the feeder circuit breaker of the switchgear must be taken into
account. This may be very long for old circuit breakers.
The central unit, I/O units and multiplying relays (7 and 8)
serve as trip units. The central unit (1) trips its own feeder
circuit breaker in zone 1 faults (tripping group 1) and serves as
CBFP in zone 1, 2 and 4 faults (tripping groups 1 and 2), if the
current limit is exceeded. The multiplying relay (7) multiplies
the CBFP trip to all upstream circuit breakers. The arc sensor
I/O unit (2) trips the bus-coupler circuit breaker between zones
1 and 2 in faults in its own zone. The zone 2 current I/O unit (3)
trips its own input circuit and the bus-coupler circuit breaker
between zones 1 and 2. The trip has been multiplied with the
trip multiplier relay (8). The arc sensor I/O units (4 and 5) trip
the bus-coupler circuit breaker between zones 2 and 4 in faults
in their own zone. The zone 3 current I/O unit (6) trips its own
incomer circuit breaker, and arc I/O unit (5) trips the tiebreaker to this zone.
Arc alarm is taken from the alarm relay of the central unit,
which activates in faults in all zones. System self-supervision
alarm is also taken from the central unit alarm relay.
3.1.2.
System components
The system configuration comprises the following components:
 one (1) VAMP 221 central units
 two (2) VAM 4C current I/O unit
 three (3) VAM 3L fibre I/O units
 two (2) VAR 4CE multiplying relays
 six (6) ARC-SLx fibre sensors
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Technical description
3.1.3.
3 Application examples
3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
System configuration
Configuration of the central unit VAMP 221 (1)
SW1 switch settings
Switch
1
Definition
Latch
2
L>&I> / L>
0
3
CBFP/
Fast
0
4
CBFP
100/150 ms
1
5
Relay
matrix
Relay
matrix
Relay
matrix
central
unit/subunit
0
Description
Position ”1” (switch on the right):
trip relay is only operational while the
protection is activated
Position ”0” (switch on the left)
trip relay changes to latching status
after trip
Position ”0” (switch on the left):
trip is activated by arc and current
criteria
Position ”1” (switch on the right)
- trip is activated by light criteria
alone
Position ”0” (switch on the left):
output trip relays 2 and 4 serve as
CBFP
Position ”1” (switch on the right)
output trip relays 2 and 4 serve as
fast trip
Position ”0” (switch on the left):
CBFP delay time 100 ms
Position ”1” (switch on the right)
CBFP delay time 150 ms
Relay matrix
1
Relay matrix
0
Relay matrix
0
Position ”0” (switch on the left):
central unit in central unit mode
Position ”1” (switch on the right)
central unit in sub-unit mode
6
7
8
Setting
0
Since VAMP 221 serves as the central unit for I/O units, VAMP
221 must be in the central unit operating mode.
Current pick-up setting potentiometer settings L1/L3 and L2/I0
L1 / L3
Potentiometer settings are used to set the light activation level
for phase currents IL1 and IL3. The setting zone is 0.5 … 6 x In.
This current setting is separate from the IL2/I0 setting.
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3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
3 Application examples
Technical description
L2 / Io
Potentiometer settings are used to set the light activation level
for phase currents IL2 or earth-fault current I0. The setting zone
is 0.05 … 5 x In. This current setting is separate from the IL1/IL3
setting.
NOTE! If three phase currents are connected to the central unit, both
L1/L3 and L2 settings must be made.
Configuration of the current I/O unit VAM 4C and
VAM 4CD (3 and 6)
Zone 1
Zone 2
Zone 3
Zone 4
Addr
Addr
Addr
Addr
VAM4C(6)
Setting
Definition
1
2
3
4
5
6
7
8
VAM4C(3)
Setting
Switch
SW1 switch settings
0
1
0
0
0
0
0
1
0
0
1
0
0
0
1
0
Description
System operating zone 1 (light information)
System operating zone 2 (light information)
System operating zone 3 (light information)
System operating zone 4 (light information)
Address weighting coefficient 8
Address weighting coefficient 4
Address weighting coefficient 2
Address weighting coefficient 1
VAM 4C (3) address ”1” (33)
VAM 4C (6) address “2” (34)
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Technical description
3 Application examples
3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
Switch
Definition
VAM4C(3)
Setting
VAM4C(6)
Setting
SW2 switch settings
1
Latch
1
1
2
1A / 5A
0 *)
0 *)
Description
Position ”0” (switch down):
trip relay is only operational while the
protection is activated
Position ”1” (switch up):
trip relay changes to latching status after
trip
Position ”0” (switch down): rated
secondary current of the current
transformer is 1 A
Position ”1” (switch up):
rated secondary current of the current
transformer is 5 A
3
4
I> out
I> in
1
1
1
1
Position ”0” (switch down):
unit does not transmit the current criteria
to other units
Position ”1” (switch up):
unit transmits the current criteria to
other units
Position ”0” (switch down):
unit does not receive the current criteria
from other units
Position ”1” (switch up):
unit receives the current criteria from
other units
*) As in CT
Current pick-up setting potentiometer settings L1/L3 and L2/I0
L1 / L3
Potentiometer settings are used to set the light activation level
for phase currents IL1 and IL3. The setting zone is 0.5 … 6 x In.
This current setting is separate from the IL2/I0 setting.
L2 / I0
Potentiometer settings are used to set the light activation level
for phase currents IL2 or earth-fault current I0. The setting zone
is 0.05 … 5 x In. This current setting is separate from the IL1/IL3
setting.
NOTE! If three phase currents are connected to the I/O unit, both
L1/L3 and L2 settings must be made.
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3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
3 Application examples
Technical description
Configuration of the fibre I/O unit VAM 3L and VAM
3LX (2,4 and 5)
Switch
Definition
VAM3L(2)
Setting
VAM3L(4)
Setting
VAM3L(5)
Setting
SW1 switch settings
1
BIO
1
1
1
2
Latch
1
1
1
3
L+I / L
0
0
0
4
5
6
7
8
Addr
Addr
Addr
Addr
Addr
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
Description
Position ”0” (switch on the left)
BIO out sends light information
Position ”1” (switch on the right):
BIO out sends overcurrent
information
Position ”0” (switch on the left)
trip relay is only operational while
the protection is activated
Position ”1” (switch on the right)
trip relay changes to latching status
after trip
Position ”0” (switch on the left)
trip is activated by arc and current
criteria
Position ”1” (switch on the right)
trip is activated by light criteria
alone
Address weighting coefficient 16
Address weighting coefficient 8
Address weighting coefficient 4
Address weighting coefficient 2
Address weighting coefficient 1
VAM 3L (2) unit address 0 (protection zone 1)
VAM 3L (4) unit address 8 (protection zone 2)
VAM 3L (5) unit address 16 (protection zone 3)
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Technical description
3.1.4.
3 Application examples
3.1 Selective fibre solution, 3
incomers, 3 protection zones,
CBFP in use
Testing of example application
NOTE! For general testing instructions, see Operation and
Configuration instructions, Chapter 4.
Testing of the central unit VAMP 221 (1)
The system is configured in INSTALL mode once the settings of
each system component have been completed. You can verify
the system configuration against the physical connections in
the INFO mode.
To verify the setting value, feed the targeted start current to
the current channel L1 or L3 (for example, 3 x In). You can
monitor unit activation by the I>int indicator light.
To verify the setting value, feed the targeted start current to
the current channel L2 or I0 (for example, 3 x In). You can
monitor unit activation by the I>int indicator light.
If phase current is not fed to all three phases simultaneously,
the unbalance load alarm is activated. Unbalance is indicated
by a fault alarm (alarm No. 18). This alarm will not prevent
unit operation, however. Each unbalance alarm must be
separately acknowledged in the central unit.
NOTE! Unbalance error has been removed from the software version
3.12 onwards.
Testing of the current I/O unit VAM 4C and VAM 4CD
(3.6)
To verify the setting value, feed the targeted start current to
the current channel L1 or L3 (for example, 3 x In). Then turn
the potentiometer until the unit activates and the L1 or L3
current channel indicator light is lit.
To verify the setting value, feed the targeted start current to
the current channel L2 or I0 (for example, 3 x In). Then turn the
potentiometer until the unit activates and the L2 or I0 current
channel indicator light is lit. When the overcurrent stage on
VAM 4C is activated the I>ext indicator on central unit will
also lit.
If phase current is not fed to all three phases simultaneously,
the unbalance load alarm is activated. Unbalance is indicated
by a blinking LED in connection with the deviating phase. The
unit also sends a fault alarm to the central unit, where it must
be separately acknowledged. This alarm will not prevent unit
operation, however.
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3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
3 Application examples
Technical description
Testing of the fibre I/O unit VAM 3L and VAM 3LX (2,
4, 5)
To verify the transfer of the light information, activate each
fibre loop sensor using a powerful light source, such as a
flashlight. If VAM 3LX is used, the sensitivity of light input is
adjustable for each fibre loops with channel adjustments “CH1
Adj.”, “CH2 Adj.” and “CH3 Adj.” To verify the data transfer,
check the light activation from the unit’s indicator lights and
central unit display.
Testing of overall system operation
Feed a test current exceeding the current limit to the current
channels of the central unit and the current I/O units. To
obtain light information, activate each light I/O unit (at least
one light criterion per I/O unit). Verify tripping and its
selectivity.
Verify the trip circuit wiring by tripping each system circuit
breaker at least once using the system’s output trip relay.
Fill in a testing report (see model report in the User’s Manual)
during the test.
Close the hard wire connection terminals opened during testing
and remove temporary connections. The system is ready for
commissioning.
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Technical description
3.2.
3 Application examples
3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
Selective sensor solution, 2 incomers,
2 protection zones, CBFP in use
Figure 3.2-1 Selective sensor solution, 2 power flow directions, 2 protection
zones, CBFP in use
Figure 3.2-2 Selective sensor solution, 2 power flow directions, 2 protection
zones, CBFP in use
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3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
3.2.1.
3 Application examples
Technical description
Functional system description
The protected object is medium voltage switchgear with two
separate inputs. The switchgear has a longitudinal busbar in a
bus-bar between the inputs. See Figures 3.2-1 and 3.2-2.
To minimize the fault zone, the switchgear is divided into two
separate zones when structurally possible. The different zones
are limited by bus-coupler circuit breakers and monitored by
light sensors VA 1 DA connected to the light I/O unit 3 and 4.
The system receives current criteria from the central unit (1)
and current I/O unit (2), which have been installed on
incomers.
Switchgear protection has been ensured by wiring the CBFP
contacts to the opposite side of the supply transformers. When
setting the CBFP delay time, the standard break-time of the
feeder circuit breaker of the actual switchgear must be taken
into account. This may be very long for old circuit breakers.
The central unit and I/O units serve as trip units. The central
unit (1) trips its own feeder circuit breaker in zone 1 faults
(tripping group 1) and serves as CBFP in zone 1 and 2 faults
(tripping groups 1 and 2), if the current limit is exceeded. The
arc sensor I/O units (3 and 4) trip the bus-coupler circuit
breaker between zones 1 and 2 in faults in their own zone. The
zone 2 light I/O unit (3) trips its own bus-coupler circuit
breaker.
Arc alarm is taken from the alarm relay of the central unit,
which activates in faults in all zones. System self-supervision
alarm is also taken from the central unit alarm relay.
3.2.2.
System components
The system configuration comprises the following components:
 one (1) VAMP 221 central units
 one (1) VAM 4C current I/O unit
 two (2) VAM 10L light I/O units
 sixteen (16) VA 1 DA light sensitive elements
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Technical description
3.2.3.
3 Application examples
3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
System configuration
Configuration of the central unit VAMP 221 (1)
SW1 switch settings
Switch
1
Definition
Latch
Setting
1
2
L>&I> / L>
0
3
CBFP/Fast
0
4
CBFP
100/150 ms
1
5
6
7
8
Relay matrix
Relay matrix
Relay matrix
central
unit/sub-unit
1
0
0
0
Description
Position ”0” (switch on the left):
trip relay is only operational while the
protection is activated
Position ”1” (switch on the right)
trip relay changes to latching status after
trip
Position ”0” (switch on the left):
trip is activated by arc and current criteria
Position ”1” (switch on the right)
trip is activated by light criteria alone
Position ”0” (switch on the left):
output trip relays 2 and 4 serve as CBFP
Position ”1” (switch on the right)
output trip relays 2 and 4 serve as fast trip
Position ”0” (switch on the left):
CBFP delay time 100 ms
Position ”1” (switch on the right)
CBFP delay time 150 ms
Relay matrix
Relay matrix
Relay matrix
Position ”0” (switch on the left):
central unit in central unit mode
Position ”1” (switch on the right)
central unit in sub-unit mode
Since VAMP 221 serves as the central unit for I/O units, VAMP
221 must be in the central unit operating mode.
Current pick-up setting potentiometer settings L1/L3 and L2/I0
L1 / L3
Potentiometer settings are used to set the light activation level
for phase currents IL1 and IL3. The setting zone is 0.5 … 6 x
IN. This current setting is separate from the IL2/I0 setting.
L2 / I0
Potentiometer settings are used to set the light activation level
for phase currents IL2 or earth-fault current I0. The setting zone
is 0.05 … 5 x IN. This current setting is separate from the IL1/IL3
setting.
NOTE! If three phase currents are connected to the central unit, both
L1/L3 and L2 settings must be made.
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3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
3 Application examples
Technical description
Configuration of the current I/O unit VAM 4C and
VAM 4CD (2)
Switch
Definition
VAM4C(2)
Setting
SW1 switch settings
1
2
3
4
5
6
7
8
Zone 1
Zone 2
Zone 3
Zone 4
Addr
Addr
Addr
Addr
0
1
0
0
0
0
0
1
Description
System operating zone 1 (light information)
System operating zone 2 (light information)
System operating zone 3 (light information)
System operating zone 4 (light information)
Address weighting coefficient 8
Address weighting coefficient 4
Address weighting coefficient 2
Address weighting coefficient 1
VAM 4C (2) address ”1” (33)
Switch
Definition
VAM4C(2)
Setting
SW2 switch settings
1
Latch
1
2
1A / 5A
0 *)
3
I> out
1
4
I> in
1
Description
Position ”0” (switch down):
trip relay is only operational while the protection
is activated
Position ”1” (switch up):
trip relay changes to latching status after trip
Position ”0” (switch down): rated secondary
current of the current transformer is 1 A
Position ”1” (switch up):
rated secondary current of the current
transformer is 5 A
Position ”0” (switch down):
unit does not transmit the current criteria to
other units
Position ”1” (switch up):
unit transmits the current criteria to other units
Position ”0” (switch down):
unit does not receive the current criteria from
other units
Position ”1” (switch up):
unit receives the current criteria from other
units
*) As in CT
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3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
Current pick-up setting potentiometer settings L1/L3 and L2/I0
L1 / L3
Potentiometer settings are used to set the light activation level
for phase currents IL1 and IL3. The setting zone is 0.5 … 6 x IN.
This current setting is separate from the IL2/I0 setting.
L2 / I0
Potentiometer settings are used to set the light activation level
for phase currents IL2 or earth-fault current I0. The setting zone
is 0.05 … 5 x IN. This current setting is separate from the IL1/IL3
setting.
NOTE! If three phase currents are connected to the I/O unit, both
L1/L3 and L2 settings must be made.
Configuration of the light I/O unit VAM 10L and
VAM 10 LD (3 and 4)
VAM10L(4)
Setting
L>
ext/int
0
0
2
Latch
1
1
3
L+I / L
0
0
4
5
6
7
8
Zone 4
Addr
Addr
Addr
Addr
0
0
0
0
0
0
1
0
0
0
Definition
1
Switch
VAM10L(3)
Setting
SW1 switch settings
Description
Position ”1” (switch on the right)
unit does not receive the light criteria from
other units
Position ”0” (switch on the left):
unit receives the light criteria from other
units in the same protection zone
Position ”0” (switch on the left)
trip relay is only operational while the
protection is activated
Position ”1” (switch on the right)
trip relay changes to latching status after
trip
Position ”0” (switch on the left)
trip is activated by arc and current criteria
Position ”1” (switch on the right)
- trip is activated by light criteria alone
Address weighting coefficient 16
Address weighting coefficient 8
Address weighting coefficient 4
Address weighting coefficient 2
Address weighting coefficient 1
VAM 10L (3) unit address “0” (protection zone 1)
VAM 10L (4) unit address “8” (protection zone 2)
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3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
3.2.4.
3 Application examples
Technical description
System testing
Testing of the central unit VAMP 221 (1)
The system is configured in INSTALL mode once the settings of
each system component have been completed. You can verify
the system configuration against the physical connections in
the INFO mode.
To verify the setting value, feed the targeted start current to
the current channel L1 or L3 (for example, 3 x IN). You can
monitor unit activation on the current measuring display and
by the I>int indicator light.
To verify the setting value, feed the targeted start current to
the current channel L2 or I0 (for example, 3 x IN). You can
monitor unit activation on the current measuring display and
by the I>int indicator light.
If phase current is not fed to all three phases simultaneously,
the unbalance load alarm is activated. Unbalance is indicated
by a fault alarm (alarm No. 18). This alarm will not prevent
unit operation, however. Each unbalance alarm must be
separately acknowledged in the central unit.
NOTE! Unbalance error has been removed from the software version
3.12 onwards.
Testing of the current I/O unit VAM 4C and VAM 4CD
(2)
To verify the setting value, feed the targeted start current to
the current channel L1 or L3 (for example, 3 x IN). Then turn
the potentiometer until the unit activates and the L1 or L3
current channel indicator light is lit.
To verify the setting value, feed the targeted start current to
the current channel L2 or I0 (for example, 3 x IN). Then turn the
potentiometer until the unit activates and the L2 or I0 current
channel indicator light is lit.
If phase current is not fed to all three phases simultaneously,
the unbalance load alarm is activated. Unbalance is indicated
by a blinking LED in connection with the deviating phase. The
unit also sends a fault alarm to the central unit, where it must
be separately acknowledged. This alarm will not prevent unit
operation, however.
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3 Application examples
3.2 Selective sensor solution, 2
incomers, 2 protection zones,
CBFP in use
Testing of the light I/O unit VAM 10L and VAM 10LD
(4, 5)
To verify the transfer of the light information, activate each
sensor using a powerful light source, such as a flashlight. To
verify the data transfer, check the light activation from the
unit’s indicator lights and central unit display.
Testing of overall system operation
Feed a test current exceeding the current limit to the current
channels of the central unit and the current I/O units and
provide light information for each light I/O unit (at least one
light criterion per I/O unit). Verify tripping and its selectivity.
Verify the trip circuit wiring by tripping each system circuit
breaker at least once using the system’s output trip relay.
Fill in a testing report (see model report in the User’s Manual)
during the test.
Close the hard wire connection terminals opened during testing
and remove temporary connections. The system is ready for
commissioning.
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3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
3.3.
3 Application examples
Technical description
Selective point sensor solution,
multiple incomers, multiple protection
zones, CBFP in use
Figure 3.3-1 Selective fibre sensor solution, multiple power flow dierections,
multiple protection zones, CBFP in use
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Technical description
3.3.1.
3 Application examples
3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
Functional system description
The protected installation is an extensive industrial mediumvoltage distribution system comprising two switchgears and
five supplies. The switchgears have longitudinal busbars in a
bus-bar between the inputs. The system also monitors the
auxiliary supply connections, each one of which forms a
separate protection zone. The system comprises two
independent systems connected to each other with a BI/O bus,
which makes it possible to use several protection zones.
To minimize the fault zone, the switchgear is divided into two
separate zones when structurally possible. The different zones
are limited by bus-coupler circuit breakers and monitored by
light sensitive elements (5, 7, 10 and 12). The system receives
current criteria from the central units (1, 2, 3 and 4) and
current I/O unit (8), which have been installed on incomers.
The auxiliary supply connections are monitored by light
sensitive elements (5, 7, 10 and 12).
Switchgear protection has been ensured by wiring the CBFP
contacts to the opposite side of the supply transformers. When
setting the CBFP delay time, the standard break-time of the
feeder circuit breaker of the actual switchgear must be taken
into account. This may be very long for old circuit breakers.
The central units, I/O units and multiplying relays (14, 15, 16,
17 and 18) serve as trip units.
The central unit (1) trips its own feeder circuit breaker and
those between zones 1.1 and 1.2, 1.1 and 1.3, and 1.1 and 2.1 in
zone 1.1 faults (tripping group 1) and serves as CBFP in faults
in these zones (tripping group 1) if the current limit is
exceeded. The trip has been multiplied with a relay (14). In
addition, the central unit (1) trips the circuit breaker between
zones 1.1 and 1.2 in zone 1.2 faults (tripping group 2) if the
current limit is exceeded. CBFP tripping is multiplied for each
feeder circuit breaker with a relay (18).
The central unit (2) trips its own feeder circuit breaker and
those between zones 1.2 and 1.4, 1.3 and 1.4, and 1.4 and 2.4 in
zone 1.4 faults (tripping group 2) if the current limit is
exceeded. The trip has been multiplied with a relay (15). In
addition, the central unit (2) trips the circuit breaker between
zones 1.3 and 1.1 in zone 1.1 faults (tripping group 1) if the
current limit is exceeded.
The central unit (3) trips its own feeder circuit breaker and
those between zones 2.1 and 2.2, 2.1 and 2.3, and 1.1 and 2.1 in
zone 2.1 faults (tripping group 1) and serves as CBFP in faults
in these zones (tripping group 1) if the current limit is
exceeded. The trip has been multiplied with a relay (16). In
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3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
3 Application examples
Technical description
addition, the central unit (2) trips the circuit breaker between
zones 2.1 and 2.2 in zone 2.2 faults (tripping group 2) if the
current limit is exceeded.
The central unit (4) trips its own feeder circuit breaker and
those between zones 2.2 and 2.4, 2.3 and 2.4, and 1.4 and 2.4 in
zone 2.4 faults (tripping group 1) if the current limit is
exceeded. The trip has been multiplied with a relay (17). In
addition, the central unit (4) trips the circuit breaker between
zones 2.3 and 2.4 in zone 2.4 faults (tripping group 2) if the
current limit is exceeded.
The current I/O unit (8) trips its own bus-coupler circuit
breaker in zone 1.1 faults, if the current limit is exceeded.
The arc sensor I/O unit (6) trips the circuit breaker between
zones 1.2 and 1.4 in faults in its own zone.
The arc sensor I/O unit (9) trips the circuit breaker between
zones 1.3 and 1.4 in faults in its own zone.
The arc sensor I/O unit (13) trips the circuit breaker between
zones 2.2 and 2.4 in faults in its own zone.
The arc sensor I/O unit (11) trips the circuit breaker between
zones 2.1 and 2.3 in faults in its own zone.
Arc alarm is taken from the alarm relays of the central units,
which activate in faults in all zones. System self-supervision
alarms are also taken from the central unit alarm relays.
3.3.2.
System components
The system configuration comprises the following components:
 four (4) VAMP 221 central units
 one (1) VAM 4C current I/O unit
 eight (8) VAM 10L current I/O units
 a maximum of eighty (80) VA 1 DA light sensitive
elements
 five (5) VAR 4CE multiplying relays
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3.3.3.
3 Application examples
3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
System configuration
Configuration of the central unit VAMP 221 (1,2,3
and 4)
Switch
Definition
VAMP221(1)
Setting
VAMP221(2)
Setting
VAMP221(3)
Setting
VAMP221(4)
Setting
SW1 switch settings
1
Latch
1
1
1
1
2
L>&I>
/ L>
0
0
0
0
3
CBFP/
Fast
0
0
0
0
4
CBFP
100/
150 ms
1
1
1
1
5
Relay
matrix
Relay
matrix
Relay
matrix
central
unit/su
b-unit
1
1
0
1
Description
Position ”1” (switch on the right):
trip relay is only operational while the
protection is activated
Position ”0” (switch on the left)
trip relay changes to latching status
after trip
Position ”0” (switch on the left):
trip is activated by arc and current
criteria
Position ”1” (switch on the right)
trip is activated by light criteria
alone
Position ”0” (switch on the left):
output trip relays 2 and 4 serve as CBFP
Position ”1” (switch on the right)
output trip relays 2 and 4 serve as fast
trip
Position ”0” (switch on the left):
CBFP delay time 100 ms
Position ”1” (switch on the right)
CBFP delay time 150 ms
Relay matrix
0
1
1
1
Relay matrix
0
0
0
0
Relay matrix
0
1
0
1
Position ”0” (switch on the left):
central unit in central unit mode
Position ”1” (switch on the right)
central unit in sub-unit mode
6
7
8
Since VAMP 221 (1 and 3) serves as the central unit for I/O
units, VAMP 221 (1 and 3) must be in the central unit
operating mode.
VAMP 221 (2 and 4) must be in the sub-unit operating mode.
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3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
3 Application examples
Technical description
Current pick-up setting potentiometer settings L1/L3 and L2/I0
L1 / L3
Potentiometer settings are used to set the light activation level
for phase currents IL1 and IL3. The setting zone is 0.5 … 6 x IN.
This current setting is separate from the IL2/I0 setting.
L2 / I0
Potentiometer settings are used to set the light activation level
for phase currents IL2 or earth-fault current I0. The setting zone
is 0.05 … 5 x IN. This current setting is separate from the IL1/IL3
setting.
NOTE! If three phase currents are connected to the central unit, both
L1/L3 and L2 settings must be made.
Configuration of the current I/O unit VAM 4C and
VAM 4CD (8)
Definition
1
2
3
4
5
6
7
8
Zone 1
Zone 2
Zone 3
Zone 4
Addr
Addr
Addr
Addr
VAM4C(8)
Setting
Switch
SW1 switch settings
0
0
0
1
0
0
0
1
Description
System operating zone 1 (light information)
System operating zone 2 (light information)
System operating zone 3 (light information)
System operating zone 4 (light information)
Address weighting coefficient 8
Address weighting coefficient 4
Address weighting coefficient 2
Address weighting coefficient 1
VAM 4C (8) address ”1” (33)
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3 Application examples
3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
Switch
Definition
VAM4C(2)
Setting
SW2 switch settings
1
Latch
1
Description
Position ”0” (switch down):
trip relay is only operational while the protection is
activated
Position ”1” (switch up):
trip relay changes to latching status after trip
2
1A /
5A
0 *)
Position ”0” (switch down): rated secondary current of
the current transformer is 1 A
Position ”1” (switch up):
rated secondary current of the current transformer is
5A
3
I> out
1
Position ”0” (switch down):
unit does not transmit the current criteria to other
units
Position ”1” (switch up):
unit transmits the current criteria to other units.
4
I> in
1
Position ”0” (switch down):
unit does not receive the current criteria from other
units
Position ”1” (switch up):
unit receives the current criteria from other units.
*) As in CT
Current pick-up setting potentiometer settings L1/L3 and L2/I0
L1 / L3
Potentiometer settings are used to set the light activation level
for phase currents IL1 and IL3. The setting zone is 0.5 … 6 x IN.
This current setting is separate from the IL2/I0 setting.
L2 / I0
Potentiometer settings are used to set the light activation level
for phase currents IL2 or earth-fault current I0. The setting zone
is 0.05 … 5 x IN. This current setting is separate from the IL1/IL3
setting.
NOTE! If three phase currents are connected to the I/O unit, both
L1/L3 and L2 settings must be made.
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3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
3 Application examples
Technical description
Configuration of the light I/O unit VAM 10L and
VAM 10LD (5,6,7,9,10,11,12 and 13)
VAM10L(6,13)
Setting
VAM10L(9,11)
Setting
VAM10L(7,12)
Setting
L>
ext/int
1
1
1
1
2
Latch
1
1
1
1
3
L+I / L
0
0
0
0
4
5
6
7
8
Zone 4
Addr
Addr
Addr
Addr
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
1
1
0
0
0
Definition
1
Switch
VAM10L(5,10)
Setting
SW1 switch settings
Description
Position ”1” (switch on the right)
unit does not receive the light criteria from
other units
Position ”0” (switch on the left):
unit receives the light criteria from other
units in the same protection zone
Position ”0” (switch on the left)
trip relay is only operational while the
protection is activated
Position ”1” (switch on the right)
trip relay changes to latching status after
trip
Position ”0” (switch on the left)
trip is activated by arc and current criteria
Position ”1” (switch on the right)
trip is activated by light criteria alone
Address weighting coefficient 16
Address weighting coefficient 8
Address weighting coefficient 4
Address weighting coefficient 2
Address weighting coefficient 1
VAM 10L (5,10) unit address “0” (protection zone 1)
VAM 10L (6,13) unit address “8” (protection zone 2)
VAM 10L (9,11) unit address “16” (protection zone 3)
VAM 10L (7,12) unit address “24” (protection zone 4)
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Technical description
3.3.4.
3 Application examples
3.3 Selective point sensor
solution, multiple incomers,
multiple protection zones, CBFP
in use
System testing
Configuration of the central unit VAMP 221 (1, 2, 3,
4)
The system is configured in INSTALL mode on central units in
the central unit mode once the settings of each system
component have been completed. You can verify system
configuration against the physical connections in the INFO
mode.
To verify the setting value, feed the targeted start current to
the current channel L1 or L3 (for example, 3 x IN ). You can
monitor unit activation on the current measuring display and
by the I>int indicator light.
To verify the setting value, feed the targeted start current to
the current channel L2 or I0 (for example, 3 x IN). You can
monitor unit activation on the current measuring display and
by the I>int indicator light.
If phase current is not fed to all three phases simultaneously,
the unbalance load alarm is activated. Unbalance is indicated
by a fault alarm (alarm No. 18). This alarm will not prevent
unit operation, however. Each unbalance alarm must be
separately acknowledged in the central unit.
NOTE! Unbalance error has been removed from the software version
3.12 onwards.
Testing of the current I/O unit VAM 4C and VAM 4CD
(8)
To verify the setting value, feed the targeted start current to
the current channel L1 or L3 (for example, 3 x IN). Then turn
the potentiometer until the unit activates and the L1 or L3
current channel indicator light is lit.
To verify the setting value, feed the targeted start current to
the current channel L2 or I0 (for example, 3 x IN). Then turn the
potentiometer until the unit activates and the L2 or I0 current
channel indicator light is lit.
If phase current is not fed to all three phases simultaneously,
the unbalance load alarm is activated. Unbalance is indicated
by a blinking LED in connection with the deviating phase. The
unit also sends a fault alarm to the central unit, where it must
be separately acknowledged. This alarm will not prevent unit
operation, however.
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3.4 Arc protection current
measuring based on earth-fault
current
3 Application examples
Technical description
Testing of the light I/O unit VAM 10L and VAM 10LD
(5, 6, 7, 9, 10, 11, 12, 13)
To verify the transfer of the light information, activate each
sensor using a powerful light source, such as a flashlight. To
verify the data transfer, check the light activation from the
unit’s indicator lights and central unit display.
Testing of overall system operation
Feed a test current exceeding the current limit to the current
channels of the central unit and the current I/O units and
provide light information for each light I/O unit (at least one
light criterion per I/O unit). Verify tripping and its selectivity.
Verify the operation of the BI/O bus by feeding overcurrent
information from one system to another.
Verify the trip circuit wiring by tripping each system circuit
breaker at least once using the system’s output trip relay.
Fill in a testing report (see model report in the User’s Manual)
during the test.
Close the hard wire connection terminals opened during testing
and remove temporary connections. The system is ready for
commissioning.
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Technical description
3.4.
3 Application examples
3.4 Arc protection current
measuring based on earth-fault
current
Arc protection current measuring
based on earth-fault current
Figure 3.4-1 Arc protection current measuring based on earth-fault current
Figure 3.4-2 Arc protection current measuring based on earth-fault current
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3.4 Arc protection current
measuring based on earth-fault
current
3.4.1.
3 Application examples
Technical description
Functional system description
The purpose of this application example is to demonstrate the
implementation of the arc protection light criteria using earthfault current.
The earth-fault current can be measured directly from the
summation connection of the instrument transformer, in which
case the sum of the phase currents is wired through the L2/I0
current measuring channel. (Figure 3.4-1)
An alternative, more accurate, method is to connect a current
transformer that measures earth-fault current directly to the
L2/ I0 current measuring channel.
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Technical description
4 Interfaces
4.
Interfaces
4.1.
Rear panel view
4.1 Rear panel view
Terminal X1, left side
Terminal No.
X1:1
X1:3
X1:5
X1:7
X1:9
X1:11
X1:13
X1:15
X1:17
X1:19
Symbol
IL1 (S1)
IL2 / Io (S1)
IL3 (S1)
TRIP 1
TRIP 2
TRIP 3
TRIP 4
TRIP ALARM
SF(NC)
SF(NO)
Description
Current input 1 (S1)
Current input 2 (S1)
Current input 3 (S1)
Trip relay 1
Trip relay 2
Trip relay 3
Trip relay 4
Normally open trip alarm relay
Self-supervision relay, closed when Relay energized
Self-supervision relay, open when Relay energized
NOTE: See separate application note AN221.ENxxx for X1
terminal numbering of VAMP 221 4xx xxx model.
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4.1 Rear panel view
4 Interfaces
Technical description
Terminal X1, right side
Terminal No.
X1:2
X1:4
X1:6
X1:8
X1:10
X1:12
X1:14
X1:16
X1:18
X1:20
Symbol
IL1 (S2)
IL2 / Io(S2)
IL3 (S2)
TRIP 1
TRIP 2
TRIP 3
TRIP 4
TRIP ALARM
SF(NC)
SF(NO)
Description
Current input 1 (S2)
Current input 2 (S2)
Current input 3 (S2)
Trip relay 1
Trip relay 2
Trip relay 3
Trip relay 4
Normally open trip alarm relay
Self-supervision relay, closed when Relay energized
Self-supervision relay, open when Relay energized
NOTE: See separate application note AN221.ENxxx for X1
terminal numbering of VAMP 221 4xx xxx model.
Terminal X2
Terminal No.
X2:1
X2:2
X2:3
X2:4
X2:5
X2:6
X2:7
X2:8
X2:9
X2:10
X2:11
X2:12
X2:13
X2:14
X2:15
X2:16
X2:17
X2:18
96
Symbol
Power LED
GND
Trip LED
Description
Power LED control (Unit 1)
Power + Trip LED GND (Unit 1)
Trip LED control (Unit 1)
1A+
1A1B+
1B-
Trip output for VAM 3QD (Trip group 1)
Trip output for VAM 3QD (Trip group 1)
Trip output for VAM 3QD (Trip group 1)
Trip output for VAM 3QD (Trip group 1)
Power LED
GND
Trip LED
Power LED control (Unit 2)
Power + Trip LED GND (Unit 2)
Trip LED control (Unit 2)
2A+
2A2B+
2B-
Trip output for VAM 3QD (Trip group 2)
Trip output for VAM 3QD (Trip group 2)
Trip output for VAM 3QD (Trip group 2)
Trip output for VAM 3QD (Trip group 2)
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Technical description
4 Interfaces
4.2 Analogue measurements
Terminal X3
Terminal No.
X3:1
X3:2
X3:3
X3:4
X3:5
X3:6
X3:7
X3:8
X3:9
X3:10
X3:11
X3:12
X3:13
X3:14
X3:15
X3:16
X3:17
X3:18
Symbol
GND
+24V
RS_B
RS_A
CAN_H
CAN_L
Description
I/O unit ground potential
I/O unit operating voltage
Data bus
Data bus
Data bus
Data bus
La> in
Lb> in
I> in/out
La> out
Lb> out
GND
GND
Arc input, tripping group 1
Arc input, tripping group 2
Current input
Arc output, tripping group 1
Arc output, tripping group 2
Us
Us
Operating voltage
Operating voltage
Terminal No.
Description
X6:1
Modular cable terminal 1
X6:2
Modular cable terminal 2
Terminal X6
4.2.
Analogue measurements
VAMP 221:
 3 current measuring channels 1/5A or current sensor
inputs
VAM 4C and VAM 4CD:
 3 current measuring channels 1/5A
VAM 10L and VAM 10LD:
 10 light measuring channels for point sensors
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4.5 Output relays
4 Interfaces
Technical description
VAM 3L and VAM 3LX:
 3 light measuring channels for fibre loop sensors
(adjustable light sensitivity in VAM 3LX model)
4.3.
Digital inputs (BI/O bus)
The following BI/O interfaces are included in the standard
VAMP 221 delivery:
La>in
Lb>in
Ib> in/out
La> out
Lb> out
GND
X3-8
X3-9
X3-10
X3-11
X3-12
X3-13,
X3-14
Arc input, tripping group 1
Arc input, tripping group 2
Overcurrent input/output
Arc output, tripping group 1
Arc output, tripping group 2
Grounding for all BI/O signals
The following BI/O interfaces are included in standard VAM
10L / VAM 10LD and VAM 3L / VAM 3LX deliveries:
I>in
GND
Trip out
GND
X2-8
X2-7
X2-10
X2-9
Zone shift, 24-48 VDC
Current input earth
Trip output, 24 VDC
Trip output earth
The following BI/O connections are included in the standard
VAM 4C / VAM 4CD delivery:
L>in
GND
I>out
GND
4.4.
X2-8
X2-7
X2-10
X2-9
Arc input, 24-48 VDC
Arc input earth
Current output, 24 VDC
Current output earth
Auxiliary power supply
Connect the auxiliary supply voltage to the Us input, terminals
X3-17 X3-18.
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Technical description
4 Interfaces
4.5.
Output relays
4.5.1.
VAMP 221
4.5 Output relays
Connect the circuit breaker’s trip circuits to the following
terminals (a maximum of four separate trip outputs in two
separate groups):
TRIP1:
TRIP2:
TRIP3:
TRIP4:
X1-7, X1-8
X1-9, X1-10
X1-11, X1-12
X1-13, X1-14
(fast, group 1)
(fast/CBFP, group 1)
(fast, group 2)
(fast/CBFP, group 2)
Connect the self-supervision alarm output to an IF change-over
contact, either terminals X1-17, X1-18 (normally open) or X119, X1-20 (normally closed).
During normal system operation (no internal fault) and with
the auxiliary power supply connected, the terminal X1-17, X118 are closed and X1-19, X1-20 are open.
Connect the trip alarm output to the closing terminals X1-15,
X1-16.
4.5.2.
VAM 10L / VAM 10LD, VAM 3L / VAM 3LX and
VAM 4C / VAM 4CD
Connect the circuit breaker’s trip circuit to the following
terminals:
TRIP1:
X2-15, X2-16
(fast)
The output trip relay of the arc I/O units (VAM 10L and VAM
3L / VAM 3LX) operates during faults in its own zone. In the
current I/O unit (VAM 4C), select the protection zone
controlling the I/O unit using the programming switches.
4.5.3.
VAM 12L / VAM 12LD
Connect each output relay to corresponding breaker.
Sensor channel 1 controls Trip output 1 (X2-15, X2-16)
Sensor channel 2 controls Trip output 2 (X2-11, X2-12)
Sensor channel 3 controls Trip output 3 (X2-8, X2-9)
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4.6 Block diagram
4 Interfaces
4.6.
Block diagram
4.6.1.
VAMP 221
Technical description
Figure: connections of VAMP 221 3A3 AAA
NOTE: See separate application note AN221.ENxxx for X1
terminal numbering of VAMP 221 4xx xxx model.
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4.6.2.
4 Interfaces
4.6 Block diagram
VAM 12L and VAM 12LD
VAM 12L is primary design for selective feeder trip
applications. The unit comprises 3 electromechanical trip
normally open contacts and one trip alarm change over contact.
The unit has 10 ARC sensor inputs. Tree sensors (of the ten)
inputs are dedicated, and are controlling their own trip relay.
The unit is ideal for selective trip of cable compartment in case
of an ARC fault. VAM 12L can selectively handle 3 feeders. The
rest of the sensors can then supervise the busbar and breaker
compartments and will operate in the zone selected by the unit
address switches.
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4.6 Block diagram
4 Interfaces
Technical description
Figure 4.6.2-1 Arc scheme with I/O units
Connections
The VAM12L arc protection unit has 10 sensor channel inputs
of which the three first sensor (1, 2 and 3) have dedicated trip
outputs (T1, T2 and T3). Sensors 4 to 10 are part of the sensors
scheme of the 221 and are operating in the zone selected by the
dipswitch. The unit is receiving I> (over-current) information
from VAM4C/CD or VAMP221 units through the com
connection. In opposite to the VAM 10L/LD, 3L and 4C/CD the
12L/LD unit have no BI or BO connection. Also the rs485 and
can connection at X2 has been removed and replaced by the DO
connections
By setting L>int/ext to ext mode all 3 trip outputs will trip for a
fault in zone and will hence also isolate outgoing feeders for
fault in busbar compartment
Figure 4.6.2-2 VAM 12L / VAM 12LD block diagram
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4 Interfaces
4.6 Block diagram
Door mounted I/O units
The VAM I/O units with the letter D in the type designations
VAM 4CD, VAM 10LD and VAM 12LD are door mounted
versions for the corresponding VAM 4C, VAM 10L and
VAM 12 L units.
The functionality is exactly the same.
4.6.3.
VM221.EN018
VAM 10L and VAM 10LD
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4.6 Block diagram
4 Interfaces
4.6.4.
VAM 3L
4.6.5.
VAM 3LX
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Technical description
4.6.6.
VM221.EN018
4 Interfaces
4.6 Block diagram
VAM 4C / VAM 4CD
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4.6 Block diagram
4.6.7.
106
4 Interfaces
Technical description
VAMP 4R
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Technical description
4.6.8.
VM221.EN018
4 Interfaces
4.6 Block diagram
VAMP 221 signaling diagram
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4.7 Connection examples
4 Interfaces
4.7.
Connection examples
4.7.1.
VAMP 221
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Technical description
4.7.2.
4 Interfaces
4.7 Connection examples
VAM 12L
X1-1,2:
X1-3,4:
X1-5,6:
X1-7,8:
X1-9,10:
X1-11,12:
X1-13,14:
X1-15,16:
X1-17,18:
X1-19,20:
arc sensor channel 1
arc sensor channel 2
arc sensor channel 3
arc sensor channel 4
arc sensor channel 5
arc sensor channel 6
arc sensor channel 7
arc sensor channel 8
arc sensor channel 9
arc sensor channel 10
X2-1:
+24v supply from central
unit or external power
supply
GND
X2-2:
X2-3:
X2-4:
X2-5:
X2-6:
X2-7:
X2-8:
X2-9:
X2-10:
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
COM
NO
NC
Alarm
Trip relay 3 (NO)
Trip relay 3 (NO)
Trip relay 2 (NO)
Trip relay 2 (NO)
Trip relay 1 (NO)
Trip relay 1 (NO)
Figure 4.7.2-1 VAM 12L interfaces
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4.7 Connection examples
4.7.3.
4 Interfaces
Technical description
VAM 12LD
X1-1,2:
X1-3,4:
X1-5,6:
X1-7,8:
X1-9,10:
X1-11,12:
X1-13,14:
X1-15,16:
X1-17,18:
X1-19,20:
arc sensor channel 1
arc sensor channel 2
arc sensor channel 3
arc sensor channel 4
arc sensor channel 5
arc sensor channel 6
arc sensor channel 7
arc sensor channel 8
arc sensor channel 9
arc sensor channel 10
X2-1:
+24v supply from central
unit or external power
supply
GND
X2-2:
X2-3:
X2-4:
X2-5:
X2-6:
X2-7:
X2-8:
X2-9:
X2-10:
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
COM
NO
NC
Alarm
Trip relay 3 (NO)
Trip relay 3 (NO)
Trip relay 2 (NO)
Trip relay 2 (NO)
Trip relay 1 (NO)
Trip relay 1 (NO)
Figure 4.7.3-1 VAM 12LD interfaces
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4.7.4.
4 Interfaces
4.7 Connection examples
VAM 10L
X1-1,2:
X1-3,4:
X1-5,6:
X1-7,8:
X1-9,10:
X1-11,12:
X1-13,14:
X1-15,16:
X1-17,18:
X1-19,20:
arc sensor channel 1
arc sensor channel 2
arc sensor channel 3
arc sensor channel 4
arc sensor channel 5
arc sensor channel 6
arc sensor channel 7
arc sensor channel 8
arc sensor channel 9
arc sensor channel 10
X2-1:
X2-2:
X2-3:
X2-4:
+24V supply from central
unit or external power
supply
GND
CAN-L
CAN-H
X2-5:
X2-6:
X2-7:
X2-8:
Serial B
Serial A
DI GND
DI (24-48Vdc)
X2-9:
X2-10:
DO GND
DO +24Vdc
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
+ Temp sensor
- Temp sensor
Zone
information
(L>, I>)
Master slave
com
=COM1, COM2
Zone change
(1 -> 2; 2 ->1;
3 -> 4; 4 -> 3)
Trip
information
(DI & DO)
Not in use
Trip relay (NO)
Trip relay (NO)
Figure 4.7.4-1 VAM 10L interfaces
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4.7 Connection examples
4.7.5.
4 Interfaces
Technical description
VAM 10LD
X1-1,2:
X1-3,4:
X1-5,6:
X1-7,8:
X1-9,10:
X1-11,12:
X1-13,14:
X1-15,16:
X1-17,18:
X1-19,20:
arc sensor channel 1
arc sensor channel 2
arc sensor channel 3
arc sensor channel 4
arc sensor channel 5
arc sensor channel 6
arc sensor channel 7
arc sensor channel 8
arc sensor channel 9
arc sensor channel 10
X2-1:
X2-2:
X2-3:
X2-4:
+24V supply from central
unit or external power
supply
GND
CAN-L
CAN-H
X2-5:
X2-6:
X2-7:
X2-8:
Serial B
Serial A
DI GND
DI (24-48Vdc)
X2-9:
X2-10:
DO GND
DO +24Vdc
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
+ Temp sensor
- Temp sensor
Zone
information
(L>, I>)
Master slave
com
=COM1, COM2
Zone change
(1 -> 2; 2 ->1;
3 -> 4; 4 -> 3)
Trip
information
(DI & DO)
Not in use
Trip relay (NO)
Trip relay (NO)
Figure 4.7.5-1 VAM 10LD interfaces
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4.7.6.
4 Interfaces
4.7 Connection examples
VAM 3L / VAM 3LX
X1-R1:
X1-T1:
X1-R2:
X1-T2:
X1-R3:
X1-T3:
X2-1:
Fiber receiver connection
Fiber transmitter
connection
Fiber receiver connection
Fiber transmitter
connection
Fiber receiver connection
Fiber transmitter
connection
X2-2:
X2-3:
X2-4:
+24V supply from central
unit or external power
supply
GND
CAN-L
CAN-H
X2-5:
X2-6:
X2-7:
X2-8
Serial B
Serial A
DI GND
DI (24-48Vdc)
X2-9:
X2-10:
DO GND
DO +24Vdc
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
+ Temp sensor
- Temp sensor
Channel 1
Channel 2
Channel 3
Zone
information
(L>, I>)
master slave
com
= COM1, COM2
Zone change
(1 -> 2; 2 -> 1;
3 -> 4; 4 -> 3)
Trip
information
(DI&DO)
Not in use
Trip relay (NO)
Trip relay (NO)
Figure 4.7.3 Example of VAM 3L interfaces
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4.7 Connection examples
4.7.7.
4 Interfaces
Technical description
VAM 4C
X1-1,3:
X1-5,7:
X1-9,11.
Current input IL1
Current input IL2 / Io
Current input IL3
X2-1:
+24V supply from central
unit or external power
supply
GND
CAN-L
CAN-H
X2-2:
X2-3:
X2-4:
X2-5:
X2-6:
X2-7:
X2-8:
X2-9:
X2-10:
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
Serial B
Serial A
DI GND
DI (24-48Vdc)
DO GND
DO +24Vdc
Zone
information
(L>, I>)
master slave
com
= COM1, COM2
L>
TRIP
Trip relay (NO)
Trip relay (NO)
Figure 4.7.7-1. VAM 4C interfaces
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4.7.8.
4 Interfaces
4.7 Connection examples
VAM 4CD
X1-1,3:
X1-5,7:
X1-9,11.
Current input IL1
Current input IL2 / Io
Current input IL3
X2-1:
+24V supply from central
unit or external power
supply
GND
CAN-L
CAN-H
X2-2:
X2-3:
X2-4:
X2-5:
X2-6:
X2-7:
X2-8:
X2-9:
X2-10:
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
Serial B
Serial A
DI GND
DI (24-48Vdc)
DO GND
DO +24Vdc
Zone
information
(L>, I>)
master slave
com
= COM1, COM2
L>
TRIP
Trip relay (NO)
Trip relay (NO)
Figure 4.7.8-1 VAM 4CD interfaces
VM221.EN018
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4.7 Connection examples
4.7.9.
4 Interfaces
Technical description
VAMP 4R
X1-1,2:
X1-3,4:
X1-5,6:
X1-7,8:
X1-9,10:
X1-11,12:
X1-13,14:
X1-15,16:
X1-17:
X1-18:
X1-19:
X1-20:
Trip relay (NO), Trip group 1.
Trip relay (NC), Trip group 1.
Trip relay (NO), Trip group 1.
Trip relay (NC), Trip group 1.
Trip relay (NO), Trip group 2.
Trip relay (NC), Trip group 2.
Trip relay (NO), Trip group 2.
Trip relay (NC), Trip group 2.
X2-1:
X2-2:
X2-3:
X2-4:
X2-5:
X2-6:
X2-7:
X2-8:
X2-9:
X2-10:
X2-11:
X2-12:
Aux voltage supply +24Vdc
GND
Aux voltage supply +24Vdc
GND
Aux voltage supply +24Vdc
GND
NO
COM
NC
SF Alarm
relay
TRIP 2. Input 18...265Vac/dc
TRIP 2. Input 18...265Vac/dc
Trip group 2.
TRIP 1. Input 18...265Vac/dc
TRIP 1. Input 18...265Vac/dc
Trip group 1.
Figure 4.7.9-1 VAMP 4R interfaces
116
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VM221.EN018
Technical description
5 Technical data
5.
Technical data
5.1.
Connections
5.1.1.
Measuring circuits
5.1 Connections
VAMP 221
Rated current L1 / L3
- current measuring zone
- thermal withstand capability
- power consumption
Rated current L2 / I0
- current measuring zone
- thermal withstand capability
- power consumption
Terminal:
- single or multi-strand wire
Current sensor input in VAMP 221
4xx xxx
1 or 5 A (optional) 50/60Hz
0 … 6 A (0 … 6* IN [IN =1A]);
0 … 30 A (0 … 6*IN[IN =5A])
300 A (for 1s)
100 A (for 10s)
20 A (continuous)
<0.3 VA
1 or 5 A (optional) 50/60Hz
0…6 A (0…6*IN [IN =1A]);
0…30 A (0…6* IN [IN =5A])
300 A (for 1s)
100 A (for 10s)
20 A (continuous)
<0.3 VA
Maximum cross-section area of wire
4 mm2 (10-12 AWG)
See separate application note
AN221.ENxxx for details.
VAM 12L, VAM 12LD, VAM 10L, VAM 10LD
Sensor connections
Terminal:
- Phoenix MVSTBW or similar
10 arc sensors (type VA 1 DA or
VA 1 EH)
1 portable arc sensor (type VA 1 DP)
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
VAM 3L
Sensor connections
3 fibre loop sensors (type ARC-SLx)
1 portable arc sensor (type VA 1 DP)
VAM 3LX
Sensor connections
VM221.EN018
3 fibre loop sensors (type ARC-SLx)
- sensitivity adjust range compared
to 3L
0,5 (max) … 1,5 (min)
1 portable arc sensor (type VA 1 DP)
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5.1 Connections
5 Technical data
Technical description
VAM 4C, VAM 4CD
Rated current L1 / L3
- current measuring zone
- thermal withstand capability
- power consumption
Rated current L2 / I0
- current measuring zone
- thermal withstand capability
- power consumption
Terminal:
- single or multi-strand wire
5.1.2.
1 or 5 A (optional) 50/60Hz
0 … 6 A (0 … 6*IN [IN =1A]);
0 … 30 A (0 … 6* IN [IN =5A])
300 A (for 1s)
100 A (for 10s)
20 A (continuous)
<0.3 VA
1 or 5 A (optional) 50/60Hz
0 … 6 A (0 … 6*IN [IN =1A]);
0 … 30 A (0 … 6* IN [IN =5A])
300 A (for 1s)
100 A (for 10s)
20 A (continuous)
<0.3 VA
Maximum cross-section area of wire
4 mm2 (10-12 AWG)
Auxiliary power supply
VAMP 221
Rated voltage UAUX
Power consumption
Terminal:
- Phoenix MVSTBW or similar
48-265 V ac/dc
110/120/220/240 VAC 50/60Hz
48/60/110/125/220 V dc
< 7 W (in normal mode)
< 10 W (output relays activated)
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
VAM 12L, VAM 12LD, VAM 10L, VAM 10LD, VAM 3L, VAM 3LX,
VAM 4C, VAM 4CD
Rated voltage UAUX
Power consumption
Terminal:
- Phoenix MVSTBW or similar
( RJ 45 when supply from central
unit)
24 V dc
< 1 W (in normal mode)
< 1.5 W (output relays activated)
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
VAR 4CE
Rated voltage UAUX
Power consumption
Terminal:
- fixed terminal
118
24 V dc
< 0.5 W (in normal mode)
< 4.5 W (output relays activated)
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
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Technical description
5 Technical data
5.1 Connections
VAMP 4R
Rated voltage UAUX
Current consumption
- one relay group activated
- both relay groups activated
24 V dc
20 mA stby
80 mA
180 mA
VA 1 DA, VA 1 EH, VA 1 DP
Rated voltage UAUX
Power consumption
5.1.3.
12 V dc (from I/O unit)
< 35 mW (in normal mode)
< 450 mW (activated)
Digital inputs (BI/O bus)
VAMP 221
Number of inputs
Internal operating voltage
Load capacity (max.)
Terminal:
2 pcs L> in
(La> tripping group 1,
Lb> tripping group 2)
2 pcs I> out
Ia> tripping group 1,
Ib> tripping group 2)
1 pcs I> in/out
48 V dc
5 mA
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
- Phoenix MVSTBW or similar
No digital inputs available in VAM 12L and VAM 12LD
VAM 10L, VAM 10LD, VAM 3L, VAM 3LX
Number of inputs
Internal operating voltage
Load capacity (max.)
Terminal:
1 pcs I> in
1 arc fault trip out
24…48 V dc (BIO in)
24 V dc (BIO out)
5 mA
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
- Phoenix MVSTBW or similar
VM221.EN018
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5.1 Connections
5 Technical data
Technical description
VAM 4C
Number of inputs
Internal operating voltage
Load capacity (max.)
Terminal:
1 pcs L> in
1 pcs I> out
24…48 V dc (BIO in)
24 V dc (BIO out)
5 mA
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
- Phoenix MVSTBW or similar
VAMP 4R
Operating voltage
Current consumption
5.1.4.
18…265 V ac/dc
2 mA
Trip contacts
VAMP 221
Number of contacts
Rated voltage
Continuous withstand capacity
Make and carry for 0.5s
Make and carry for 3s
Breaking capacity, dc(L/R=40 ms)
At 48 V dc:
At 110 V dc:
At 220 V dc:
Relay material
4 closing contacts (relays T1-T4)
250 V ac/dc
5A
30 A
15 A
Terminal:
Maximum cross-section area of wire:
2.5 mm2 (13-14 AWG)
1A
0.44 A
0.22 A
AgNi 90/10
- Phoenix MVSTBW or similar
120
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Technical description
5 Technical data
5.1 Connections
VAM 12L, VAM 12LD, VAM 10L, VAM 10LD, VAM 3L, VAM 3LX,
VAM 4C, VAM 4CD
Number of contacts
for VAM 10L, VAM 10LD, VAM 3L,
VAM 3LX, VAM 4C, VAM 4CD
Number of contacts
for VAM 12L, VAM 12LD
Rated voltage
Continuous withstand capacity
Make and carry for 0.5s
Make and carry for 3s
Breaking capacity, dc(L/R=40 ms)
At 48 V dc:
At 110 V dc:
At 220 V dc:
Relay material
Terminal:
1 closing contact (relay T1)
3 closing contacts (relay T1)
250 V ac/dc
5A
30 A
15 A
1A
0.44 A
0.22 A
AgNi 90/10
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
- Phoenix MVSTBW or similar
VAR 4CE
Number of contacts
Rated voltage
Continuous withstand capacity
Make and carry for 0.5s
Make and carry for 3s
Breaking capacity, dc(L/R=40 ms)
At 48 V dc:
At 110 V dc:
At 220 V dc:
Relay material
Terminal:
4 closing contacts (relays T1-T4)
250 V ac/dc
5A
30 A
15 A
5A
3A
1A
AgNi 90/10
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
VAMP 4R
4N/O / 4N/C rated voltage
Continuous withstand capacity
Make and carry for 0.5s
Make and carry for 3s
N/O breaking capacity dc
(L/R=40ms)
At 48 V dc
At 110 V dc
At 220 V dc
Contact material
Terminal:
- Phoenix MVSTBW or similar
VM221.EN018
250V ac/dc
5A
30A
15A
1A
0.44A
0.22A
AgNi 90/10
Maximum cross-section area of wire
2.5 mm2 (13-14 AWG)
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5.2 Tests and environmental
conditions
5.1.5.
5 Technical data
Technical description
Alarm contacts
VAMP 221
Number of contacts
2 normally open contacts
(relay A1&IF*)
1 normally closed contact (IF*)
250 V ac/dc
5A
10 A
8A
Rated voltage
Continuous withstand capacity
Make and carry for 0.5s
Make and carry for 3s
Breaking capacity, dc(L/R=40 ms)
At 48 V dc:
1A
At 110 V dc:
0.25 A
At 220 V dc:
0.05 A
Relay material
AgNi 90/10
Terminal:
Maximum cross-section area of wire
- Phoenix MVSTBW or similar
2.5 mm2 (13-14 AWG)
*) Relay IF is the unit's self-supervision relay
5.1.6.
Communication bus interface
Number of ports
Electrical connection
Max. number of used units
Auxiliary voltage supply to I/O
units
Communication
Light/current signal
5.1.7.
2 in the back plate (VAMP 221)
2 in the front panel (I/O units)
RJ 45
16 I/O units
3 central units
Floating 24 V dc
RS485 (15 kV) information / selfsupervision
4 arc protection zones
1 overcurrent zone
Local serial communication port
VAMP 221
Number of ports
Electrical connection
Data transfer rate
122
1 pcs in front panel
RS 232
9600 kb/s (software update)
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VM221.EN018
Technical description
5.2.
5 Technical data
5.2 Tests and environmental
conditions
Tests and environmental conditions
Disturbance tests
Test
Standard & Test class / level
Emission
EN 61000-6-4
Test value
- Conducted
EN 55011, class A
0.01 - 30 MHz
- Emitted
EN 55011, class A
30 - 1 000 MHz
Immunity
EN 61000-6-2 / IEC 60255-26
- 1Mhz damped oscillatory
wave
IEC 60255-22-1
±2.5kVp CM, ±1kVp DM
- Static discharge (ESD)
EN 61000-4-2 class IV / IEC
60255-22-2
8 kV contact, 15 kV air
- Fast transients (EFT)
EN 61000-4-4 class IV / IEC
60255-22-4 class A
±4 kV, 5/50 ns, 5 kHz
- Surge
EN 61000-4-5 class III / IEC
60255-22-5
2 kV, 1.2/50 s, CM
1 kV, 1.2/50 s, DM
VM221.EN018
- Conducted HF field
EN 61000-4-6 class III / IEC
60255-22-6
0.15 - 80 MHz, 10 Vemf
- Emitted HF field
EN 61000-4-3 class III / IEC
60255-22-3
80 - 2700 MHz, 10 V/m
- Voltage interruptions
EN 61000-4-29 / IEC 60255-11
30%/1s, 60%/0.1s,
100%/0.05s
- Voltage alternative
component
EN 61000-4-17 / IEC 60255-11
12% of operating voltage
(DC) / 10min
- Voltage dips and short
interruptions
EN 61000-4-11
- Power-frequency magnetic
field
EN 61000-4-8
30%/10ms, 100%/10ms,
60%/100ms
>95%/5000ms
300A/m (continuous),
1000A/m / 1-3s
- Pulse magnetic field
EN 61000-4-9
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1000A/m, 1.2/50 s
123
5.2 Tests and environmental
conditions
5.2.1.
5.2.2.
5 Technical data
Electrical safety tests
Test
- Impulse voltage withstand
Standard & Test class / level
Test value
EN 60255-5, class III
5 kV, 1.2/50 s, 0.5 J
- Dielectric test
EN 60255-5, class III
2 kV, 50 Hz
- Insulation resistance
EN 60255-5
- Protective bonding
resistance
EN 60255-27
- Power supply burden
IEC 60255-1
Mechanical tests
Shock response
Shock withstand
Bump test
Vibration
-Sinusoidal response
- Sinusoidal endurance
124
Technical description
IEC 60255-21-2, Class I
half sine 11 ms,
Acceleration 5 g,
6 directions, 3 pulse each
direction.
IEC 60255-21-2, Class I
half sine 11 ms,
Acceleration 15 g,
6 directions, 3 pulse each
direction.
IEC 60255-21-2, Class I
half sine 16 ms,
Acceleration 10 g,
6 directions, 1000 pulse each
direction.
IEC 60255-21-1, Class I
Amplitude 0.035 mm
Frequency 10…150 Hz
Acceleration 0.5 g
3 directions, 1 sweep,
sweep rate 1 oct/min
IEC 60255-21-1, Class I
Frequency 10…150 Hz
Acceleration 1 g
3 directions, 20 sweeps,
sweep rate 1 oct/min
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Technical description
5.2.3.
5 Technical data
Environmental conditions
Operating temperature range
Transport and storage temperature range
- VAMP 221, VAM I/O units
- ARC SLm, VA 1 xx sensors
Relative air humidity
5.2.4.
5.2 Tests and environmental
conditions
-10 … +55C
-40 … +70C
-40 … +85C
<75% (1 year, average)
<90% (30 days per year,
condensation not allowed)
Casing
VAMP 221
Housing class (IEC 60529)
Dimensions (WxHxD)
Material
Weight
Colour code
IP20
208x155x236 mm
1mm steel plate
4,2 kg
RAL 7032 (housing) / RAL
70035 (back plate)
VAM 10L, VAM 3L, VAM 3LX, VAM 4C, VAMP 4R
Housing class (IEC 60529)
Dimensions (WxHxD)
Material
Weight
Colour code
IP21
157x92x25 mm
1mm steel plate
0.52 kg
RAL 7032 (housing) / RAL
70035 (back plate)
VAM 10LD, VAM 12LD, VAM 4CD
Door mounted (IEC 60529)
Dimensions (WxHxD)
Material
Weight
Colour code
IP64
185x120x25 mm
1mm steel plate
0.60 kg
RAL 7032 (housing) / RAL
70035 (back plate)
VAR 4CE
Housing class (IEC 60529)
Dimensions (WxHxD)
Material
Weight
VM221.EN018
IP21
140x90x60 mm
PLASTIC
0.52 kg
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5.3 Protection stages
5 Technical data
Technical description
VA 1 DA, VA 1 EH, VA 1 DP
Housing class (IEC 60529)
Dimensions (WxHxD)
Material
Weight
Cable length
5.2.5.
Package
Dimensions (WxHxD)
Weight (unit, box and user instructions)
5.3.
IP21
25x55x14 mm (VA 1 DA)
11x62 mm (VA 1 EH)
40x7 mm (VA 1 DP)
Plastic
0.01 kg
6 m or 20 m
(VA 1 DP 5 m)
VAMP 221: 215 x 160 x 275 mm
VAMP 4R: 157 x 92 x 25 mm
VAM 10L: 157 x 92 x 25 mm
VAM 3L: 157 x 92 x 25 mm
VAM 3LX: 157 x 92 x 25 mm
VAM 4C: 157 x 92 x 25 mm
VAMP 221: 5.2 kg
VAMP 4R: 0.62 kg
VAM 10L: 0.62 kg
VAM 3L: 0.62 kg
VAM 3LX: 0.62 kg
VAM 4C: 0.62 kg
Protection stages
NOTE! See Chapter 2.1 for description.
5.3.1.
Arc (fault) protection
L1/L3 setting stage
Start current
Operating time
Detection period
Resetting period
0.5…6*IN
7 ms
2 ms
30 ms
L2/I0 setting stage
Start current
Operating time
Detection period
Resetting period
126
0.05…5* IN
7 ms
2 ms
30 ms
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VM221.EN018
Technical description
5.3.2.
5 Technical data
Circuit breaker failure protection stage (50BF)
Monitored relay
Operating time
5.4.
5.4 Unbalance alarm
One relay in the tripping group
(Trip 2 or Trip 4)
100 ms or 150 ms
Unbalance alarm
Detecting limit
Operating time
90%
10 s
NOTE! Unbalance function has been removed from the software
version 3.12 onwards.
VM221.EN018
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6.1 Dimensional drawings
6 Construction
Technical description
6.
Construction
6.1.
Dimensional drawings
6.1.1.
VAMP 221 panel mounting and self-flush
128
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Technical description
6.1.2.
VM221.EN018
6 Construction
6.1 Dimensional drawings
VAM 12L din rail mounting
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129
6.1 Dimensional drawings
6.1.3.
130
6 Construction
Technical description
VAM 12LD flush mounting
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VM221.EN018
Technical description
6.1.4.
VM221.EN018
6 Construction
6.1 Dimensional drawings
VAM 10L din rail mounting
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131
6.1 Dimensional drawings
6.1.5.
132
6 Construction
Technical description
VAM 10LD flush mounting
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VM221.EN018
Technical description
6.1.6.
VM221.EN018
6 Construction
6.1 Dimensional drawings
VAM 3L / 3LX din rail mounting
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6.1 Dimensional drawings
6.1.7.
134
6 Construction
Technical description
VAM 4C din rail mounting
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VM221.EN018
Technical description
6.1.8.
VM221.EN018
6 Construction
6.1 Dimensional drawings
VAM 4CD flush mounting
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6.1 Dimensional drawings
6.1.9.
136
6 Construction
Technical description
VAMP 4R din rail mounting
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VM221.EN018
Technical description
6.1.10.
VM221.EN018
6 Construction
6.1 Dimensional drawings
Fiber sensor mounting
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137
6.1 Dimensional drawings
6.1.11.
138
6 Construction
Technical description
Pipe sensor mounting
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Technical description
6.1.12.
VM221.EN018
6 Construction
6.1 Dimensional drawings
Point sensor mounting
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6.1 Dimensional drawings
6 Construction
6.1.13.
VAR 4CE
6.1.14.
VA 1 DA
6.1.15.
VA 1 EH
140
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Technical description
VM221.EN018
Technical description
6.1.16.
VM221.EN018
6 Construction
6.1 Dimensional drawings
VYX 001
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141
6.1 Dimensional drawings
6.1.17.
142
6 Construction
Technical description
VYX 002
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VM221.EN018
Technical description
6 Construction
6.1.18.
VYX 076
6.1.19.
VYX 077
VM221.EN018
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6.2 Unit installation
143
6.2 Unit installation
6.2.
6 Construction
Technical description
Unit installation
Caution!
Read this User's Manual carefully before undertaking any
installation or wiring work.
Safety instructions
Always observe the national electrical safety regulations when
working under live conditions. The unit manufacturer is not
liable for damage due to incorrect working methods or failure to
observe safety instructions.
The correct handling of the unit under all mounting and
operating conditions forms the foundation for its safe use.
Caution!
Any separately marked notes and warnings must be observed.
The wiring work must be performed according to national
standards and any requirements specified by the customer.
Caution!
Do not connect the auxiliary supply voltage until the
installation has been completed.
Before installation
Before installation, make sure the environmental conditions
comply with the requirements specified in Chapter 5.
Caution!
The unit contains components liable to damage if exposed to an
electrostatic discharge (ESD). Do not open the unit unless you
have taken appropriate protective measures against ESD.
Caution!
The manufacturer cannot guarantee operational safety in
environments that do not satisfy the specified environmental
conditions.
144
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Technical description
6.2.1.
6 Construction
6.2 Unit installation
VAMP 221
The central unit is designed for flush mounting. Spacing
adapters for reducing the installation depth are available on
request.
Figure 6.2.1-1 Mounting the central unit
Wiring of the central unit, overview
The central unit can be connected to the following:
 secondary circuits of the current transformers of the
switchgear

the trip circuits of the circuit breakers

alarm circuits

auxiliary supply circuits

protective earthing

connections to I/O units (data communication and
auxiliary supply)

connections to other central units or protection relays
NOTE! The auxiliary supply connection is different to VAMP 220! In
VAMP 221 the auxiliary supply is connected to terminals X3:17
and X3:18.
VM221.EN018
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6.2 Unit installation
6 Construction
Technical description
Wiring secondary circuits of the current transformers
Connect the secondary circuits of the current transformers to
the following screw connectors in the back plate:
 X1-1, X1-2 (L1)

X1-3, X1-4 (L2/Io)

X1-5, X1-6 (L3)
The arc protection system can also be single or two-phase
connected. Three-phase connection is nevertheless
recommended for optimal operating speed.
NOTE! The current measuring channels L1 and L3 must be used in
connection with two-phase current measuring. If only two
phases are connected, they should be connected to L1 and L3.
Single-phase current or earth-fault current must always be
connected to the current measuring channel L2/I0; as of
software version 3.12 unbalance error has been removed.
NOTE! The specified operating time of 7ms can only be guaranteed for
three-phase current measurement.
NOTE! See separate application note AN221.ENxxx for X1 terminal
numbering of VAMP 221 4xx xxx model.
Wiring the trip circuits of the circuit breakers
Connect the circuit breaker’s trip circuits to the following
terminals (a maximum of four separate trip outputs in two
separate groups):
TRIP1:
X1-7, X1-8
(fast, group 1)
TRIP2:
X1-9, X1-10
(fast/CBFP, group 1)
TRIP3:
X1-11, X1-12
(fast, group 2)
TRIP4:
X1-13, X1-14
(fast/CBFP, group 2)
In the event of an arc fault, the output contact will close at 7
ms when three-phase current measurement is used.
If CBFP is used, the trip relays 2 and 4 will operate after a preset delay time of 100 or 150 ms if the preconditions for the arc
fault still exist.
If several trips are required, the multiplying relay VAR 4CE
can be used.
Wiring alarm circuits
Alarm signals generated by the arc protection system (trip and
self-supervision alarms) can be forwarded to higher-level
switchgear supervision and control systems through the output
contacts.
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6.2 Unit installation
Self-supervision alarms
The self-supervision system issues a self-supervision alarm
when it detects a fault in a central unit function or an incorrect
number of sensors.
Connect the self-supervision alarm output to an IF change-over
contact, either terminals X1-17, X1-18 (normally closed) or X118, X1-19 (normally open).
During normal system operation (no internal fault) and with
the auxiliary power supply connected, the terminal X1-17 or
X1-18 is open and X1-18 or X1-19 is closed.
Trip alarms
A trip alarm is generated when the arc fault system trips.
Connect the trip alarm output to the closing terminals X1-15,
X1-16.
Connecting protective earthing
Connect the arc protection system to the earth using the PE
terminal in the back plate.
Wiring the auxiliary supply
Connect the auxiliary supply voltage to the Us input, terminals
X3-17 X3-18.
NOTE! If possible, the auxiliary supply should be taken from a power
source that is not interrupted during arc protection system
operation.
CAUTION! Keep the auxiliary supply disconnected during mounting.
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6.2.2.
6 Construction
Technical description
I/O units
VAM 12L, VAM 10L, VAM 3L, VAM 3LX, VAM 4C
The units are designed for mounting on a DIN rail. Mount the
units on the rail in such a way that the indicator lights on the
front panel are visible and the sensor wiring can be made as
easily as possible.
VAM 12LD, VAM 10LD, VAM 4CD
The units are designed for mounting on a door. Hence all
indicators are clearly visible in normal operation.
Wiring I/O units
The I/O units can be connected to the following:
 secondary circuits of the current transformers of the
switchgear (VAM 4C only)

the trip circuits of the circuit breakers

external auxiliary supply circuits

connections to the central unit or other I/O units (data
communication and auxiliary supply)

connections to other central units or protection relays
(DI or DO bus)
Wiring the secondary circuits of the current
transformers (VAM 4C / VAM 4CD only)
Connect the secondary circuits of the current transformers to
the following screw connectors:
 X1-1, X1-3 (L1)

X1-5, X1-7 (L2/I0)

X1-9, X1-11 (L3)
The arc protection system can also be single or two-phase
connected. Three-phase connection is nevertheless
recommended for optimal operating speed.
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6.2 Unit installation
NOTE! The current measuring channels L1 and L3 must be used in
connection with two-phase current measuring. Single-phase
current or earth-fault current must always be connected to the
current measuring channel L2/I0; otherwise, an unbalance
error will occur.
NOTE! The specified operating time of 7ms can only be guaranteed for
three-phase current measurement.
Wiring the trip circuits of the circuit breakers
Connect the circuit breaker’s trip circuit to the following
terminals:
TRIP1:
X2-15, X2-16
(fast)
In the event of an arc fault, the output contact will close at 7
ms when three-phase current measurement is used.
The output trip relay of the light I/O units (VAM 10L and
VAM 3 L) operates during faults in its own zone. In the current
I/O unit (VAM 4 C), select the protection zone controlling the
I/O unit using the programming switches.
If several trips are required, the multiplying relay VAR 4CE
can be used.
Wiring between the central unit and the I/O unit
Connect the central unit to the I/O units with a modular cable
of type VX001. The modular cable carries all information
between the central unit and I/O units, including data in serial
form, arc fault messages and operating supply to the I/O units.
 Connect the VX001 cable to the X6 cable outlet (COM2) or
the interface X3-1...6 of the central unit (COM1). Both
COM ports can be used simultaneously.
CAUTION!
If you use the terminal X3-1...6, pay particular attention to the
wiring of the signals. Faulty wiring may damage the
communication between the central unit and the I/O units.
 Connect the cable to COM1or COM2 on the first I/O unit.
 Route the cable from COM1 or COM2 on the first I/O unit
to COM1 or COM2 in the next unit, etc.
All the COM1 and COM2 interfaces are identical, i.e. the cable
can always be connected to either interface. The maximum
total length of the modular cable, taking into account all the
I/O units connected to the central unit, is 100 m.
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Technical description
Wiring separate auxiliary supplies
When routing modular cables over long distances or when the
system contains more than five I/O units, you should preferably
use a separate auxiliary supply parallel with the modular
cable.
Connect the auxiliary supply to the 24 V terminals X3-1 and
X3-2 in the central unit to the 24 V terminals X2-1 and X2-2 in
the I/O units. Alternatively, you can also use a separate
external direct voltage supply.
NOTE! Pay particular attention to the polarity of the cable
connections.
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6.2.3.
6 Construction
6.2 Unit installation
Arc sensors
Mount the sensors on the switchgear in such a way that they
cover the protection zone as completely as possible. The line of
sight must be free between the sensor and the supervised area.
If point sensors are used in open compartments (such as busbar sections), there should be a sensor approximately every 5
meters. Due to the wide detection range of the sensors and the
light reflection inside the switchgear, the mounting position is
not critical.
Connecting sensors VA 1 DA and VA 1 EH to the I/O
units
The sensors are delivered with 6-metre standard cables or 20metre shielded cables (to be specified in the order).
After mounting the sensors, connect them to the I/O units as
follows:
 Draw the wire to the nearest I/O unit using the shortest
route possible and cut it to a suitable length.
 Connect the arc sensors to the screw terminals X1-1…20.
The polarity of the arc sensor cables is not critical.
Connecting the ARC-SLx sensors to the I/O units
The sensors are delivered in standard lengths (to be specified in
the order) equipped with terminals compatible with VAM 3L
units.
After mounting the sensors, connect them to the I/O units as
follows:
 Draw each end of the sensor to the I/O unit and carefully
form a loop of the extra fibre.
NOTE! Do not shorten the extra sensor fibre unless you have
appropriate terminal connectors.
 Connect the arc sensors to plug-in terminals X1-R1,
T1…R3, T3. While the polarity of the arc sensors is not
critical, you must connect each end of the fibre to the same
channels.
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Technical description
VA 1 DA
You can be install the arc sensor onto the switchgear wall from
the outside. Press the active part of the sensor through the 10mm hole in the wall and fix it using a 4-mm screw.
Active part of the sensor
Cable of sensor
Cable clamp  Fastening screw 4x15 mm
Figure 6.2.3-1 Mounting the arc sensor VA 1 DA
You can also surface mount the sensor to the wall using the
mounting plates VYX01 or VYX02, available as additional
parts.
NOTE! The sensor must not be exposed to direct sunlight or other
strong light. Do not mount the sensor directly under a light
source.
Figure 6.2.3-2 Arc sensor VA 1 DA
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6.2 Unit installation
Figure 6.2.3-3 Sensitivity of the arc sensor VA 1 DA
VA 1 EH
You can be install the arc sensor onto the switchgear wall from
the outside. Press the active part of the sensor through the
10.5-mm hole in the wall.
You can also surface mount the sensor. To do this, push the
sensor into a plastic mounting tube and fix it with heat shrink
tubing.
NOTE! The sensor must not be exposed to direct sunlight or other
strong light. Do not mount the sensor directly under a light
source.
Figure 6.2.3-4 Arc sensor VA 1 EH
ARC-SLx
ARC-SLx is an fibre sensor that can be mounted on the
switchgear to monitor several compartments simultaneously
(various bus-bar compartmets, etc.).
The fibre must not touch any live parts of the switchgear or
other hot components, since too high temperatures may destroy
the fibre.
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Technical description
When mounting the sensor on the switchgear, ensure that the
bending radius is long enough (min. 80 mm) and that it is safe
from the sharp edges of the switchgear.
NOTE! The sensor must not be exposed to direct sunlight or other
strong light. Do not mount the sensor directly under a light
source.
NOTE! To avoid false tripping, cover any unused channels of the I/O
unit.
VA 1 DP
The portable pin sensor can be temporarily connected to the I/O
units. It is used to improve safety when working with live
switchgear, for example, Attach the sensor close to the working
area, for example in the breast pocket of the maintenance man.
A pin sensor operates in the same way as a fixed arc sensor.
The only difference is free mobility within the limits of the
connecting cable.
Figure 6.2.3-5 Pin sensor VA 1 DP
NOTE! To avoid faulty tripping, disconnect the pin sensor from the
system immediately after use.
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6.2.4.
6 Construction
6.2 Unit installation
VAR 4 CE
The multiplying relay VAR 4CE can be used when more than 4
trip outputs are needed simultaneously.
 Attach the multiplying relay to the DIN rail near where the
central unit is mounted.



Connect the auxiliary voltage to terminals X3-1 (+) and X3-2
(GND) of the central unit or to terminals X2:1 (+) and X2:2
(GND) in the I/O unit and to terminals 1 (+) and 3 (GND) or
2 (+) and 4 (GND) in the multiplying relay. Note the
polarity of the wires.
Connect the required trip output to terminals 5,7 or 6,8 in
the multiplying relay.
Connect the necessary trip controls to terminals TRIP1 TRIP4 of the multiplying relay.
Figure 6.2.4-1 Multiplying relay
Figure 6.2.4-2 Multiplying relay inteface
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6.2.5.
6 Construction
Technical description
VAMP 4R
Figure 6.2.5-1 VAMP 4R block diagram
The multiplying relay VAMP 4R can be used when additional
trip outputs are needed.
VAMP 4R comprises 4 N/O contacts and 4 N/C contacts. They
are divided into two separate groups which can be
independently controlled by e.g. the binary output of the I/O
units or the central unit ( VAMP 221 ).
 Attach the VAMP 4R unit to a DIN rail.
 Connect the auxiliary voltage ( +24V ) to terminal X2-1
(+) and X2-2 (-). Terminals X2-3 and X2-5 are parallel
inputs to X2-1(+). Terminals X2-4 and X2-6 are parallel
inputs to X2-2(1). The auxiliary voltage ( +24V ) can be
supplied from the central unit or nearest slave ( X2-1 (+),
X2-2 (-)).
 Connect the required signal (18-265 V ad/dc) to the trip
control inputs.
 Input “TRIP 1” ( X2-11, X2-12 ) is controlling the trip
group 1.
Input “TRIP 2” ( X2-8, X2-9 ) is controlling the trip group
2.
 There are 2xN/C + 2xN/O contacts per trip group.
If necessary, input TRIP 1 and 2 can be connected in parallel.
Then all trip relays will operate simultaneously.
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6.2.6.
6 Construction
6.2 Unit installation
Wiring multiple central units
A maximum of three central units can be connected to one
communication bus. In this case, the units can operate on a
maximum of four protection zones (depending on their
programming switches). The light and current signals given by
the I/O units, including address information, are transferred to
each central unit.
If more than one central unit is to be connected to the same
communication bus, one central unit must be in central unit
mode and the other central units in sub-unit mode
(programming switch SW1:8).
In applications with multiple central units the central units
can be interconnected also via BI/O connections (binary
input/output). In this case, each part of the system can control
four protection zones per system communication bus. In this
case, arc and overcurrent information is transferred between
the central units without address information.
NOTE! When configurating arc protection system with multiple central
units, disconnect I/O-units from central units in slave mode
during their installation procedure.
The following BI/O connections are included in the standard
delivery:
La>in
Lb>in
Ib> in/out
La> out
Lb> out
GND
X3-8
X3-9
X3-10
X3-11
X3-12
X3-13, X3-14
Arc input, tripping group 1
Arc input, tripping group 1
Overcurrent input/output
Arc output, tripping group 1
Arc output, tripping group 2
Grounding for all BI/O signals
To obtain transfer of arc information between central units:
 Connect the systems using the BI/O terminals X3-8, 9, 11
or 12 (+).
 Connect the terminals X3-13 or 14 (GND).
To obtain transfer of overcurrent information between central
units:
 Connect the systems using the BI/O terminals X3-10 (+).
 Connect the terminals X3-13 or 14 (GND).
NOTE! Note the polarity of the cables.
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Technical description
Figure 6.2.6-1 shows an example connection where arc
information is transferred in both directions between central
units. See Chapter 3.3 for an application example.
The system's I/O units should be connected to the central units
in the same zone.
Figure 6.2.6-1 Arc protection system with two central units (example)
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7 Order information
7.
Order information
VAMP 221 ORDERING CODE
VAMP 221
-
A
3
A
Nominal Current [A]
3
= 1A / 5A
4
= Rogowski sensor inputs
Not in Use
A
Not in Use
3
Supply Voltage [V]
A
= 48.. 265Vac/dc
Optional Hardware 1
A
= None
B
= BIO forwarding
Optional Hardware 2
A
= None
B
= VAM 3QD control hardware
Accessories :
Order Code
Explanation
Note
VAM 3L
Fiber sensor I/O unit (VAMP221 & 321)
3 fiber loops, 1 trip relay
VAM 3LX
Fiber sensor I/O unit (VAMP221 & 321)
3 fiber loops, 1 trip relay, adjustable sensitivity
VAM 4C
Current I/O unit (VAMP221 & 321)
3 current inputs, 1 trip relay
VAM 4CD
Current I/O unit (VAMP221 & 321)
3 current inputs, 1 trip relay, flush mounting
VAM 10L
Point sensor I/O unit (VAMP221 & 321)
10 sensor inputs, 1 trip relay
VAM 10LD
Point sensor I/O unit (VAMP221 & 321)
10 sensor inputs, 1 trip relay, flush mounting
VAM 12L
Point sensor I/O unit (VAMP221 & 321)
10 sensor inputs, 3 trip relays
VAM 12LD
Point sensor I/O unit (VAMP221 & 321)
10 sensor inputs, 3 trip relays, flush mounting
VAMP 4R
Interface Unit ( use vx002 cable )
4 x NO, 4 x NC, 2 groups
VAR 4 CE 4/0
Interface Unit ( use vx002 cable )
1xNO -> 4xNO
VA 1 DA-6
Arc Sensor
Cable length 6m
VA 1 DA-20
Arc Sensor
Cable length 20m
VA 1 DT-6
Temperature Sensor
Cable length 6m
VA 1 DP-5
Portable Arc Sensor
Cable length 5m
VA 1 DP-5D
Portable Arc Sensor
Cable lenght 5m
VA 1 EH-6
Arc Sensor (Pipe type)
Cable length 6m
VA 1 EH-20
Arc Sensor (Pipe type)
Cable length 20m
ARC SLm -x
Fiber sensor, 8 000 lx
x = fiber lenght (2
VX001-xx
Modular Cable VAM <-> VAM ( xx = Cable length [m] )
Preferred Cable Lenghts (3
VX031-5
Extension cable for VA1DP-5D
Cable lenght 5m
VYX001
Surface Mounting Plate for Sensors
Z-shaped
VYX002
Surface Mounting Plate for Sensors
L-shaped
VYX076
Raising Frame
Height 40mm
VYX077
Raising Frame
Height 60mm
VYX233
Raising Frame
Height 100mm
3P001
Line amplifier for arc protection BI/O channels
DIN rail mount
3P004
Supply unit, 100-240AC/24DC/1.3A
Supply unit
Note 1. Fibre lenghts 7, 10, 15, 20, 25m
Note 2. Fibre lengths 1, 5, 10, 15, 20, 25, 30, 35, 40, 50 or 70 m
Note 3. Cable lengths 1, 3, 5, 7, 10, 15, 20, 25 & 30
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8 Appendix/ Earthing instruction
8.
Technical description
Appendix/ Earthing instruction
The earthing instruction for VAMP 221: the following
mentioned I/O units should be earthed to switchgear earth as
below:
ALT 1.
REM ! If the earthing potential varies in the switchgear
installation, the earthing should be done from master
(VAMP221), in parallel with the communication cable (VX001).
In this case the dinrail connection between slaves and
switchgear should be isolated!
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8 Appendix/ Earthing instruction
ALT 2.
If the switchgear earthing solid !
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9 Reference information
9.
Technical description
Reference information
Documentation:
Mounting and Commissioning Instructions VMMC.EN0xx
Manufacturer / Service data:
VAMP Ltd
PO Box 810
FI-65101 Vaasa, Finland
Visiting address: Yrittäjänkatu 15
Tel.: +358 20 753 3200
Fax: +358 20 753 3205
URL: http://www.vamp.fi
www.vamp.fi
24h support phone:
Tel. +358 (0)20 753 3264
Email: [email protected]
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We reserve the right to changes without prior notice
VAMP Ltd.
Visiting address: Yrittäjänkatu 15
Tel: +358 20 753 3200
Postal address:
Fax: +358 20 753 3205
P.O.Box 810, FIN-65101 Vaasa,
Internet : www.vamp.fi
Finland
Email. [email protected]
VM221.EN018
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