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MiCOM P445
Fast Multifunction Distance Protection
P445/EN AD/C41
Software Version 37 & E0
Hardware Suffix J
Update Documentation
Note
The technical manual for this device gives instructions for its installation, commissioning, and operation.
However, the manual cannot cover all conceivable circumstances or include detailed information on all topics.
In the event of questions or specific problems, do not take any action without proper authorization. Contact the appropriate Schneider Electric technical sales office and request the necessary information.
Any agreements, commitments, and legal relationships and any obligations on the part of Schneider Electric including settlements of warranties, result solely from the applicable purchase contract, which is not affected by the contents of the technical manual.
This device MUST NOT be modified. If any modification is made without the express permission of
Schneider Electric, it will invalidate the warranty, and may render the product unsafe.
The Schneider Electric logo and any alternative version thereof are trademarks and service marks of Schneider Electric.
All trade names or trademarks mentioned herein whether registered or not, are the property of their owners.
This manual is provided for informational use only and is subject to change without notice.
© 2012 , Schneider Electric. All rights reserved.
MiCOM P445 (AD) 1 Update Documentation
UPDATE DOCUMENTATION
CHAPTER 1
P445/EN AD/C41 Page (AD) 1-1
(AD) 1 Update Documentation
Date: 11/2012
Hardware suffix: J
Software version: 37 & E0
Connection diagrams: 10P445xx (xx= 01 and 04)
MiCOM P445
Page (AD) 1-2 P445/EN AD/C41
Contents (AD) 1 Update Documentation
CONTENTS
1 About this Update Documentation
Manual, Hardware and Software Versions
7.1.1
Reset Mechanisms for CBF Timers
8 Chapter 8 - Measurements and Recording
12 Chapter 13 - SCADA Communications
13 Chapter 14 - Symbols and Glossary
14 Chapter 16 - Firmware and Service Manual Version History
TABLES
Table 1 - Disturbance recorder settings for digital channel
Table 2 - Initiation (menu selectable) and CB fail timer reset mechanism
Table 3 - Disturbance recorder settings for digital channel
Table 4 - Software versions and hardware suffix
Table 5 - Setting file software and relay software versions
Table 6 - PSL file software version and relay software versions
Table 7 - Menu text file software version and relay software versions
Page (AD) 1-
Page (AD) 1-
13
P445/EN AD/C41 Page (AD) 1-3
(AD) 1 Update Documentation
REPLACEMENT CHAPTERS
Safety Information
Chapter 11 - Maintenance
Chapter 14 - Symbols and Glossary
Replacement Chapters
Page (AD) 1-4 P445/EN AD/C41
1.2
1.3
About this Update Documentation
1.1
1.4
(AD) 1 Update Documentation
Manual, Hardware and Software Versions
This software release applies to the following items:
Item
Manual
Software Version
Hardware Suffix
Previous Release
P445/EN M/B21
35
J
Previous Release
P445/EN AD/B31
37
J
This New Release
P445/EN AD/C41
37 V/W/X and E0 (A/B)
J
About this Software Release
This software release is known as the P540D software release and covers a number of different models and introduces a range of new or modified features. Importantly, the features introduced by this release differ from one model to another. An overview of the
technical changes introduced for this product are shown in section 1.3.
Overview of Technical Changes
The main technical changes for the P445 range include:
Software Version 37 V, W & X:
CB Fail Improvements
This function has been introduced to improve the reset performance of the
CB Fail (CBF). The target reset time is now ¾ cycle. This has been done using the same setting range as the existing design, but the step size has been reduced from 10ms to 1ms.
Software Version E0 A & B:
128
The Enhanced DR increases the number of digital channels from 32 to 128.
Only the first 32 digital signals are capable of triggering the disturbance record.
CS103 for CB Monitor.
Generic services are supported in CS103 to transmit data in any format in a self-descriptive manner, without the need to define new or private ASDUs.
This CB status information is transmitted in this way. The transmission of CB statistics is transferred using the CS103 general control command type
ASDU20.
CB Fail Improvements (as described above)
Changes to Technical Manual
The following sections itemise the changes which are needed to the relevant Technical
Manual (P445/EN M/B21) and the associated Update Documentation (P445/EN AD/B31).
The changes list the chapter/pages which need to be changed, and provide details of the new material to be added.
P445/EN AD/C41 Page (AD) 1-5
(AD) 1 Update Documentation
ENTIRE CHAPTER
Replace entire chapter with new generic Safety Information section
Chap_00.4_Safety_Information_Pxxx_EN_SI_G12
This is provided at the end of this document.
Safety Information
Page (AD) 1-6 P445/EN AD/C41
Chapter 1 - Introduction (AD) 1 Update Documentation
3 CHAPTER 1 - INTRODUCTION
P445/EN AD/B31 - PAGE (AD) 4 - SECTION 3.1 - FUNCTIONAL OVERVIEW
For Software Releases 37 V/W/X:
For these Software Releases the Disturbance Recorder feature remains unchanged.
For Software Releases E0 (A & B):
Insert after the bullet points
Note Software Releases E0 (A) and (B) (which is released for Software Baseline
37 U/V/W/X) introduce the Enhanced Disturbance Recorder (DR) feature.
This increases the number of digital channels from 32 to 128.
P445/EN AD/B31 - PAGE (AD) 7 - SECTION 3.2 - ORDERING OPTIONS -
PROTOCOL OPTIONS BLOCK
For Software Releases 37 V/W/X:
For these Software Releases CS103 for CB monitor is not an option.
P445/EN AD/C41 Page (AD) 1-7
(AD) 1 Update Documentation Chapter 2 - Technical Data
4 CHAPTER 2 - TECHNICAL DATA
P445/EN AD/B31 - PAGE (AD) 11 - ENHANCED DISTURBANCE RECORDS
Insert:
For Software Releases 37 and earlier:
This section remains unchanged.
For Software Releases E0 (A & B):
Rename section as “Enhanced Disturbance Records”
Maximum record duration:
Maximum pre-trigger time:
Extracted over:
10.5 seconds
500 milliseconds
CS103, IEC61850 and COURIER
P445/EN AD/B31 - PAGE (AD) 14 - OSCILLOGRAPHY (DISTURB RECORDER)
Insert:
For Software Releases 37 and earlier:
This section remains unchanged.
For Software Releases E0 (A & B):
Duration: 0.10…3.00 s
Trigger Position:
Trigger Mode:
Analog Channel 1 (up to) 12:
0.0…16.7% (E0 A) or 0.0…50.0% (E0 B)
Single/Extended
Digital Input 1 up to 128:
Input 1 Trigger (up to) 32:
Disturbance channels selected from:
IA, IB, IC, IN, IN Sensitive, VA, VB, VC, V
CheckSync
Selected binary channel assignment from any DDB status point within the relay (opto input, output contact, alarms, starts, trips, controls, logic…).
No Trigger/Trigger
Note Software Releases E0 (A & B) introduce the Enhanced Disturbance
Recorder (DR) feature. This increases the number of digital channels to
128.
Page (AD) 1-8 P445/EN AD/C41
Chapter 3 - Getting Started (AD) 1 Update Documentation
5 CHAPTER 3 - GETTING STARTED
P445/EN M/B21 - PAGE (GS) 3-8 - SECTION 1.5.2. ENHANCED
DISTURBANCE RECORDER SETTINGS
Insert:
For Software Releases 37 and earlier:
This section remains unchanged.
For Software Releases E0 (A & B):
Rename section as “Enhanced Disturbance Recorder Settings”
The Disturbance Recorder (DR) settings include the record duration and trigger position, selection of analog and digital signals to record, and the signal sources that trigger the recording.
Note Software Releases E0 (A & B) introduce the Enhanced Disturbance
Recorder (DR) feature. This increases the number of digital channels to
128.
P445/EN AD/C41 Page (AD) 1-9
(AD) 1 Update Documentation Chapter 4 - Settings
6 CHAPTER 4 - SETTINGS
PAGE (ST) 4-70 - SECTION 1.5 DISTURBANCE RECORDER SETTINGS
(OSCILLOGRAPHY)
Replace:
For Software Releases 37 (U/V/W/X):
The disturbance recorder settings do not change with this release.
For Software Releases E0 (A & B):
The disturbance recorder settings include the record duration and trigger position, selection of analog and digital signals to record, and the signal sources that trigger the recording.
The DISTURBANCE RECORDER menu column is shown in Table 1:
Setting range
Menu text Default setting Step size
Min. Max.
DISTURB. RECORDER
Duration 1.5 s
This sets the overall recording time.
0.1 s 10.5 s 0.01 s
Trigger Position
16.7% (E0 A) or
50.0% (E0 B)
0 100.0% 0.1%
This sets the trigger point as a percentage of the duration. For example, the default settings show that the overall recording time is set to 1.5 s with the trigger point being at 33.3% of this, giving 0.5 s pre-fault and 1s post fault recording times.
Trigger Mode Single
Single or
Extended
If set to single mode, if a further trigger occurs whilst a recording is taking place, the recorder will ignore the trigger. However, if this has been set to
Extended
, the post trigger timer will be reset to zero, thereby extending the recording time.
Digital Inputs 1 to
128
Relays 1 to 12 and
Opto’s 1 to 12
Any O/P Contact, Any Opto Inputs, or Internal Digital
Signals
The digital channels may monitor any of the opto isolated inputs or output contacts, in addition to a number of internal relay digital signals, such as protection starts, LEDs etc.
Inputs 1 to 32
Trigger
No Trigger except
Dedicated Trip
Relay 3 operation which are set to
Trigger L/H
No Trigger, Trigger L/H, Trigger H/L
Any of the digital channels may be selected to trigger the disturbance recorder on either a low to high or a high to low transition.
Table 1 - Disturbance recorder settings for digital channel
Page (AD) 1-10 P445/EN AD/C41
Chapter 5 - Operation (AD) 1 Update Documentation
7 CHAPTER 5 - OPERATION
P445/EN M/B21 - PAGE (OP) 5-92 - SECTION 1.31 - CIRCUIT BREAKER FAIL
(CBF) PROTECTION
Replace
Software Releases versions 37 V/W/X and E0 introduce enhanced CBF functions.
The CBF protection incorporates two timers, CB Fail 1 Timer and CB Fail 2 Timer, allowing configuration for the following scenarios:
Simple CBF, where only CB Fail 1 Timer is enabled. For any protection trip, the CB
Fail 1 Timer is started, and normally reset when the circuit breaker opens to isolate the fault. If breaker opening is not detected, CB Fail 1 Timer times out and closes an output contact assigned to breaker fail (using the programmable scheme logic).
This contact is used to backtrip upstream switchgear, generally tripping all infeeds connected to the same busbar section.
A re-tripping scheme, plus delayed backtripping. Here, CB Fail 1 Timer is used to route a trip to a second trip circuit of the same circuit breaker. This requires duplicated circuit breaker trip coils, and is known as re-tripping. Should re-tripping fail to open the circuit breaker, a backtrip may be issued following an additional time delay. The backtrip uses CB Fail 2 Timer, which is also started at the instant of the initial protection element trip. CBF elements CB Fail 1 Timer and CB Fail 2
Timer can be configured to operate for trips triggered by protection elements within the relay or via an external protection trip. The latter is achieved by allocating one of the relay opto-isolated inputs to External Trip using the programmable scheme logic.
In the existing designs, the fast undercurrent is used to determine if the circuit breaker has opened. This can take up to 160ms to reset under some fault conditions - for example, where the current resembles a slow decaying dc component after the circuit
breaker has opened to clear the fault current. For example see Figure 1.
P445/EN AD/C41 Page (AD) 1-11
(AD) 1 Update Documentation Chapter 5 - Operation
Figure 1 - Decaying dc component
The length of the operating time is primarily related to the usage of the combination of
Fourier magnitudes and the 3-sample interpolation method used for the undercurrent reset algorithm. In some applications, a 160ms reset time is too slow.
In this software release, we have introduced a Zero Cross Detector (ZCD) to shorten the reset time. In some cases, it is preferable to record measured sample values of a variable waveform. However, we have found it acceptable to record the magnitude of the
waveform. For example, see Figure 2.
Page (AD) 1-12
Figure 2 - Calculating a Zero Cross Detection Point using sample values
We have modified the CB Fail logic to incorporate the addition of ZCD signals with a time delayed drop off of 1/2 a cycle for each phase current and the SEF current. These are logically combined with the output of the breaker fail timers to determine breaker fail trip operation.
P445/EN AD/C41
Chapter 5 - Operation
7.1.1
(AD) 1 Update Documentation
The objective of this software release is to improve the reset performance of the CB Fail.
The target reset time is ¾ cycle (i.e. 15ms for a 50Hz signal).
The CBF timer settings have the same setting range as the existing design but the step size has been reduced from 10ms to 1ms.
Reset Mechanisms for CBF Timers
It is common practice to use low set undercurrent elements in protection relays to indicate that circuit breaker poles have interrupted the fault or load current, as required. This covers the following situations:
Where circuit breaker auxiliary contacts are defective, or cannot be relied upon to definitely indicate that the breaker has tripped.
For any protection function requiring current to operate, the relay uses operation of undercurrent elements (I<) to detect that the necessary circuit breaker poles have tripped and reset the CB fail timers. However, the undercurrent elements may not be reliable methods of resetting circuit breaker fail in all applications. For example:
Where a circuit breaker has started to open but has become jammed. This may result in continued arcing at the primary contacts, with an additional arcing resistance in the fault current path. Should this resistance severely limit fault current, the initiating protection element may reset. Therefore, reset of the element may not give a reliable indication that the circuit breaker has opened fully.
Where non-current operated protection, such as under/overvoltage derives measurements from a line connected voltage transformer. Here, I< only gives a reliable reset method if the protected circuit would always have load current flowing. Detecting drop-off of the initiating protection element might be a more reliable method.
Similarly, where the distance scheme includes Weak Infeed (“WI”) trip logic, the reset of the WI trip condition should be used in addition to the undercurrent check.
Set: WI Prot Rese’ = Enabled.
Where non-current operated protection, such as under/overvoltage derives measurements from a busbar connected voltage transformer. Again using I< would rely upon the feeder normally being loaded. Also, tripping the circuit breaker may not remove the initiating condition from the busbar, and hence drop-off of the protection element may not occur. In such cases, the position of the circuit breaker auxiliary contacts may give the best reset method.
Resetting of the CBF is possible from a breaker open indication (from the relay’s pole dead logic) or from a protection reset. In these cases, resetting is only allowed provided the undercurrent elements have also reset. The resetting options are summarized in
Initiation (menu selectable)
Current based protection
(e.g. 50/51/46/21/67)
CB fail timer reset mechanism
The resetting mechanism is fixed
[ Ι A< operates] &
[ Ι B< operates] &
[ Ι C< operates] &
[ Ι N< operates]
P445/EN AD/C41 Page (AD) 1-13
(AD) 1 Update Documentation Chapter 5 - Operation
Initiation (menu selectable)
Non-current based protection
(e.g. 27/59)
External protection
CB fail timer reset mechanism
Three options are available. The user can Select from the following options:
[All Ι < and Ι N< elements operate]
[Protection element reset] AND
[All Ι < and N< elements operate]
CB open (all 3 poles) AND
[All I< and Ι N< elements operate]
Three options are available: The user can select any or all of the options.
[All Ι < and Ι N< elements operate]
[External trip reset] AND
[All Ι < and Ι N< elements operate]
CB open (all 3 poles) AND
[All Ι < and Ι N< elements operate]
Table 2 - Initiation (menu selectable) and CB fail timer reset mechanism
The complete breaker fail logic is shown in Figure 3 and Figure 4:
Page (AD) 1-14 P445/EN AD/C41
Chapter 5 - Operation
INTSIG Current Prot SEF Trip
INTSIG ISEF < Fast Undercurrent
WI Prot Reset = Enable
DDB Aid1 WI Trip 3Ph (642)
DDB Aid2 WI Trip 3Ph (652)
DDB Aided 1 WI Trip A (637)
DDB Aided 2 WI Trip A (647)
DDB Aided 1 WI Trip B (638)
DDB Aided 2 WI Trip B (648)
DDB Aided 1 WI Trip C (639)
DDB Aided 2 WI Trip C (649)
DDB CB1 External Trip A (535)
DDB Pole Dead A (892)
INTSIG IA<Fast Undercurrent CB1
DDB CB1 External Trip B (536)
DDB Pole Dead B (893)
INTSIG IB<Fast Undercurrent CB1
Setting CB1
Ext Trip Reset
0 I < Only
1 CB Open & I <
2 Prot Reset & I <
INTSIG Any Trip Phase A CB1
INTSIG IA<Fast Undercurrent CB1
INTSIG Any Trip Phase B CB1
INTSIG IB<Fast Undercurrent CB1
INTSIG Any Trip Phase C CB1
INTSIG IC<Fast Undercurrent CB1
(AD) 1 Update Documentation
INTSIG TripStateSEF
INTSIG WI INFEED A
INTSIG WI INFEED B
INTSIG WI INFEED C
INTSIG
TripStateA
INTSIG
TripStateB
INTSIG
TripStateC
INTSIG Latch ATrip
Reset Incomp
INTSIG Latch BTrip
Reset Incomp
INTSIG Latch CTrip
Reset Incomp
‘0’
Setting CB1
Ext Trip Reset
0 I < Only
1 CB Open & I <
2 Prot Reset & I <
DDB CB1 External Trip C (537)
DDB Pole Dead C (894)
INTSIG IC<Fast Undercurrent CB1
‘0’
‘0’
Setting CB1
Ext Trip Reset
0 I < Only
1 CB Open & I <
2 Prot Reset & I <
DDB CB1 External Trip 3 ph (534)
INTSIG IA<Fast Undercurrent CB1
INTSIG IB<Fast Undercurrent CB1
INTSIG IC<Fast Undercurrent CB1
DDB All Poles Dead (890)
DDB Pole Dead A (892)
DDB Pole Dead B (893)
DDB Pole Dead C (894)
DDB Any Trip (522)
Any Voltage Trip ( NON_I_Prot)
INTSIG IA<Fast Undercurrent CB1
INTSIG IB<Fast Undercurrent CB1
INTSIG IC<Fast Undercurrent CB1
DDB All Poles Dead (890)
DDB Pole Dead A (892)
DDB Pole Dead B (893)
DDB Pole Dead C (894)
Figure 3 - CB Fail CB1 logic part 1 after modification
P445/EN AD/C41
‘0’
Setting CB1
Ext Trip Reset
0 I < Only
1 CB Open & I <
2 Prot Reset & I <
INTSIG Latch 3phTrip
Reset Incomp
‘0’
Setting CB1
Non_I_ Reset
0 I < Only
1 CB Open & I <
2 Prot Reset & I <
INTSIG Latch
NonITrip Reset Incomp
Page (AD) 1-15
(AD) 1 Update Documentation
INTSIG Latch ATrip Reset Incomp
INTSIG Latch BTrip Reset Incomp
INTSIG Latch CTrip Reset Incomp
INTSIG Latch 3phTrip Reset Incomp
INTSIG Latch NonITrip Reset Incomp
SET:
CB1 Fail 1 Status
Enable
Disable
SET:
CB1 Fail 2
Status
Enable
Disable
INTSIG CB1 ZCD State A
INTSIG WI INFEED A
INTSIG TripStateA
INTSIG CB1 ZCD State B
INTSIG WI INFEED B
INTSIG TripStateB
INTSIG CB1 ZCD State C
INTSIG WI INFEED C
INTSIG TripStateC
SET:CB Fail 2 Timer t
0
INTSIG ZCDStateSEF
INTSIG TripStateSEF
SET:CB Fail 1 Timer t
0
Figure 4 - CB Failure CB1 logic changes part 2
SET:CB Fail 2 Timer t
0
Page (AD) 1-16
SET:CB Fail 1 Timer t
0
SET:CB Fail 2 Timer t
0
SET:CB Fail 1 Timer t
0
SET:CB Fail 2 Timer t
0
SET:CB Fail 1 Timer t
0
Chapter 5 - Operation
DDB CB1 Fail1
Trip (834)
DDB CB1
Fail Alarm
(298)
DDB CB1 Fail2
Trip (835)
DDB CB1 Fail1
Trip A (1672)
DDB CB1 Fail2
Trip A (1675)
DDB CB1 Fail1
Trip B (1673)
DDB CB1 Fail2
Trip B (1676)
DDB CB1 Fail1
Trip C (1674)
DDB CB1 Fail2
Trip C (1677)
P445/EN AD/C41
Chapter 5 - Operation (AD) 1 Update Documentation
P445/EN M/B21 - PAGE (OP) 5-121 - SECTION 2.8.1 - CIRCUIT BREAKER
CONDITION MONITORING FEATURES
Insert
In previous software (i.e. 37 and earlier), the following cells can not be obtained using
CS103. With Software Release version E0, information for these cells can now be obtained using CS103.
P445/EN AD/C41 Page (AD) 1-17
(AD) 1 Update Documentation Chapter 8 - Measurements and Recording
8 CHAPTER 8 - MEASUREMENTS AND RECORDING
P445/EN M/B21 - PAGE (MR) 8-8 - SECTION 1.3 - ENHANCED DISTURBANCE
RECORDER
Insert
For Software Release Numbers 37 V/W/X:
The enhanced disturbance recorder functions remain unchanged.
For Software Release Numbers E0 (A & B):
Rename section as “Enhanced Disturbance Recorder”.
The integral enhanced disturbance recorder has an area of memory specifically set aside for record storage. The number of records that may be stored by the relay is dependent on the selected recording duration and the installed software release.
The relay can typically store a minimum of 15 records, each of 10.5 seconds duration.
Relays for use with IEC 60870-5 CS 103 communication, however, have the same total record length but the IEC 60870-5 CS 103 communication protocol dictates that only 8 records (of 10.5 seconds duration) can be extracted via the rear port.
Disturbance records continue to be recorded until the available memory is exhausted, at which time the oldest record(s) are overwritten to make space for the newest one.
The recorder stores actual samples that are taken at a rate of 48 samples per cycle.
Each disturbance record consists of 20 analog data channels and 128 digital data channels. The relevant CT and VT ratios for the analog channels are also extracted to enable scaling to primary quantities.
Note If a CT ratio is set less than unity, the relay will choose a scaling factor of zero for the appropriate channel.
The DISTURBANCE RECORDER menu column is shown in Table 1:
Setting range
Menu text Default setting Step size
Min. Max.
DISTURB. RECORDER
Duration 3,0 s
This sets the overall recording time.
0.1 s 10.5 s 0.01 s
Trigger Position
Trigger Mode
16.7% (E0 A) or
50.0% (E0 B)
Single
0 100.0% 0.1%
This sets the trigger point as a percentage of the duration. For example, the default settings show that the overall recording time is set to 1.5 s with the trigger point being at 33.3% of this, giving 0.5 s pre-fault and 1s post fault recording times.
Single or
Extended
If set to single mode, if a further trigger occurs whilst a recording is taking place, the recorder will ignore the trigger. However, if this has been set to Extended, the post trigger timer will be reset to zero, thereby extending the recording time.
Digital Inputs 1 to
128
Relays 1 to 12 and
Opto’s 1 to 12
Any O/P Contact, Any Opto Inputs, or Internal Digital
Signals
Page (AD) 1-18 P445/EN AD/C41
Chapter 8 - Measurements and Recording (AD) 1 Update Documentation
Setting range
Menu text Default setting Step size
Min. Max.
The digital channels may monitor any of the opto isolated inputs or output contacts, in addition to a number of internal relay digital signals, such as protection starts, LEDs etc.
Inputs 1 to 32
Trigger
No Trigger except
Dedicated Trip
Relay 3 operation which are set to
Trigger L/H
No Trigger, Trigger L/H, Trigger H/L
Any of the digital channels may be selected to trigger the disturbance recorder on either a low to high or a high to low transition.
Table 3 - Disturbance recorder settings for digital channel
The pre and post fault recording times are set by a combination of the Duration and
Trigger Position cells. Duration sets the overall recording time and the Trigger
Position sets the trigger point as a percentage of the duration. For example, the default settings show that the overall recording time is set to 3.0 s with the trigger point being at
33.3% of this, giving 0.5 s pre-fault and 0.5 s post-fault recording times.
If a further trigger occurs whilst a recording is taking place, the recorder will ignore the trigger if the Trigger Mode has been set to Single. However, if this has been set to
Extended, the post trigger timer will be reset to zero, thereby extending the recording time.
As can be seen from the menu, each of the analog channels is selectable from the available analog inputs to the relay. The digital channels may be mapped to any of the opto-isolated inputs or output contacts, in addition to a number of internal relay digital signals, such as protection starts, LEDs etc. The complete list of these signals may be found by viewing the available settings in the relay menu or using a setting file in the S1
Studio software. Any of the digital channels may be selected to trigger the disturbance recorder on either a low-to-high or a high-to-low transition, using the Input Trigger cell.
The default trigger settings are that any dedicated trip output contacts (e.g. relay 3) will trigger the recorder.
It is not possible to view the disturbance records locally using the LCD; they must be extracted using suitable software such as S1 Studio software. This process is fully explained in the SCADA Communications chapter.
P445/EN AD/C41 Page (AD) 1-19
(AD) 1 Update Documentation Chapter 9 - Firmware Design
9 CHAPTER 9 - FIRMWARE DESIGN
P445/EN M/B21 - PAGE (FD) 9-18 - SECTION 3.4.7 - DISTURBANCE
RECORDER
Replace
For Software Release Numbers 37 U/V/W/X:
The enhanced disturbance recorder functions remain unchanged.
For Software Release Numbers E0 (A & B):
Rename section as “Enhanced Disturbance Recorder”.
The enhanced disturbance recorder operates as a separate task from the protection and control task. It can record the waveforms for up to 8 calibrated analog channels and the values of up to 128 digital signals.
The recording time is user selectable up to a maximum of 3.0 seconds. The enhanced disturbance recorder is supplied with data by the protection and control task once per cycle. The enhanced disturbance recorder collates the data that it receives into the required length disturbance record. The enhanced disturbance records can be extracted using the S1 Studio software which can also store the data in COMTRADE format, which allows the use of other packages to view the recorded data.
Page (AD) 1-20 P445/EN AD/C41
Chapter 10 - Commissioning (AD) 1 Update Documentation
10 CHAPTER 10 - COMMISSIONING
P445/EN AD/B31 - PAGE (CM) 10-75 - SECTION 0600 - CB OPERATION
Insert
For Software Release Numbers 37 V/W/X:
There are no CS103 functions in these software versions.
For Software Release Numbers E0 (A & B):
Generic services are supported in CS103 to transmit data in any format in a selfdescriptive manner, without the need to define new or private ASDUs. This CB status information is transmitted in this way. The transmission of CB statistics is transferred using the CS103 general control command type ASDU20.
It is also possible to control the resetting of CB statistics for CB1.
P445/EN AD/C41 Page (AD) 1-21
(AD) 1 Update Documentation Chapter 11 - Maintenance
11 CHAPTER 11 - MAINTENANCE
ENTIRE CHAPTER
Replace entire chapter with new generic Maintenance section
Chap_11_Maintenance_P14x_P44y_p445_P54x_P547_P841_P842_P846_EN_MT
This is provided at the end of this document.
Page (AD) 1-22 P445/EN AD/C41
Chapter 13 - SCADA Communications (AD) 1 Update Documentation
12 CHAPTER 13 - SCADA COMMUNICATIONS
P445/EN M/B21 - PAGE (SC) 13-23 - SECTION 3.9 - DISTURBANCE
RECORDS
Replace
For Software Release Numbers 37 U/V/W/X:
There are no CS103 functions in these software versions.
For Software Release Numbers E0 (A & B):
The disturbance records are stored in uncompressed format and can be extracted using the standard mechanisms described in IEC60870-5-103. The Enhanced Disturbance
Recorder software releases mean the relay can store a minimum of 15 records, each of
10.5 seconds duration.
P445/EN M/B21 - PAGE (SC) 13-32 - SECTION 5.6.2 - IEC 61850 GOOSE
CONFIGURATION
Replace
All GOOSE configuration is performed via the IED Configurator tool available within the
MiCOM S1 Studio support software.
All GOOSE publishing configuration can be found under the ‘ GOOSE Publishing ’ tab in the configuration editor window. All GOOSE subscription configuration can be found under the ‘ GOOSE SUBSCRIBE ’ tab in the configuration editor window. You should make sure that the configuration is correct, to ensure efficient GOOSE scheme operation.
CONFIGURATION NOTE
Whilst the GOOSE messaging allows for fast and efficient passing of data between devices, the performance will be dependent on the configuration of the device; in particular the published dataset. The IED Configurator tool provides a warning bar that indicates the size of a defined dataset relative to the maximum size that can be published within a GOOSE message. As the size of the message approaches this maximum size, the performance may be impacted.
In addition, the Px40 device is designed to provide maximum performance through an optimized publishing mechanism. This optimized mechanism is enabled if the published
GOOSE message is mapped using only the data attributes of the model rather than mapping a complete data object. If data objects are mapped the GOOSE messaging will operate correctly; however without the benefit of the optimized mechanism.
Settings to enable GOOSE signaling and to apply Test Mode are available via the relay user interface.
P445/EN AD/C41 Page (AD) 1-23
(AD) 1 Update Documentation Chapter 14 - Symbols and Glossary
13 CHAPTER 14 - SYMBOLS AND GLOSSARY
ENTIRE CHAPTER
Replace entire chapter with new generic Symbols and Glossary section
Chap_SG_General_Glossary_Pxxx_EN_SG_A05
This is provided at the end of this document.
Page (AD) 1-24 P445/EN AD/C41
Chapter 16 - Firmware and Service Manual Version History (AD) 1 Update Documentation
14 CHAPTER 16 - FIRMWARE AND SERVICE MANUAL
VERSION HISTORY
P445/EN AD/B31 - PAGE (VH) 16-1 TO (VH) 16-9 - SOFTWARE VERSIONS
AND HARDWARE SUFFIX
Software version
Hard- ware suffix
Original date of Issue
Description of changes
S1 compatibility
Major Minor
37 A J
37 B J
Release of P445 based on 36D
IEC-61850 phase 2 and 2.1 implemented
Restricted Earth Fault Protection (REF)
Interrupt Driven InterMiCOM in all models
Patch for V2.14
Studio ftp server
Read Only Mode
Release of P445 based on 37A
10 February 2010
Fault locator measurements in ohms corrected when 5A CT used or displayed in primary.
Patch for V2.14
Studio ftp server
Frequency measurement in DNP3 fault record corrected
37 D J 15 October 2010
Release of P445 based on 37B
Enhancement to GOOSE performance
Fixes to 61850.
Fixed Protection comms address problem in three ended scheme selected
Fixed a small issue with the detection of slow swings Patch for V2.14
Incorrect mapping of XCBR(n).CBOpCap.stVal data attribute corrected
Studio ftp server
37 E J 11 January 2011
Time stamping and status of IEC61850 Data attribute sofPSOF1.ST.general.Op improved
Improved the distance performance for cross country faults
Improvements to Fault record display over courier and dnp3
Release of P445 based on 37D
Rebranded as Alstom. Minor change to software number plus changes to 61850 (New ICD files required)Fixes to 61850.
Patch for V2.14
Studio ftp server
37 U J
Changes to 61850 (New ICD files required). Changes to improve
IEC61850 reporting on rapidly toggling status. Corrections to
IEC61850 datamodel.
23 February 2011
Improvements to processing of GOOSE messages when using managed Ethernet switch parameterised for VLAN.
Improvements to PSL Operation when non-latched and latched
LEDs are used together.
Improvements to copro configuration (settings) failure detection.
Improvements to Zone 1 Extension Reset.
Patch for V2.14
Studio ftp server
Release of P445 based on 37D
Rebranded as Schneider Electric.
Technical document- ation
P445/EN M/B21+
Addendum
P445/EN AD/B31
P445/EN M/B21+
Addendum
P445/EN AD/B31
P445/EN M/B21+
Addendum
P445/EN AD/B31
P445/EN M/B21+
Addendum
P445/EN AD/B31
P445/EN M/B21+
Addendum
P445/EN
AD/B31+
P445/EN AD/C41
P445/EN AD/C41 Page (AD) 1-25
(AD) 1 Update Documentation Chapter 16 - Firmware and Service Manual Version History
Software version
Major Minor
Hard- ware suffix
Original date of Issue
37
37
V
X
J
37 W J
J
17 June 2011
27 December
2011
15 May 2012
Description of changes
S1 compatibility
Technical document- ation
Release of P445 based on 37U
CB Fail reset time on fault clearance improvement.
CB Status monitoring improvement.
Patch for V2.14
Studio ftp server
P445/EN M/B21+
Addendum
P445/EN
AD/B31+
P445/EN AD/C41
Release of P445 based on 37V
Status report over IEC61850 not in line with DDB signals
OST sensitivity now 60mA (was previously 180mA).
Directional negative sequence overcurrent will only reset from the tripped state by loss of current and not incorrect direction.
Patch for V2.14
Studio ftp server
Improved IEC61850 Status reporting of DDB signal changes.
Bug Fixes.
Release of P445 based on 37W
Improved IEC61850 Goose Performance.
Distance zone 1 may mal-trip when simulated three-phase VT fail condition is applied.
Patch for V2.14
Studio ftp server
Improvements to IEC61850.
Bug Fixes.
Release of P445 distance protection based on 37U (Courier,
CS103 and IEC61850+Courier Comms protocols only).
Change to Schneider-Electric Major release (alpha) software number plus changes to 61850 (New ICD files required).
Changes to improve IEC61850 reporting on rapidly toggling status. Corrections to IEC61850 datamodel.
CB Fail reset time on fault clearance improvement.
Enhanced Disturbance Recorder - 20 Analog / 128 Digital
Channels. Additional Differential, Max Bias and 2nd Harmonic current data.
CT Ratio Enhancements (P544/P546 allow use of different CT1 and CT2 Ratios).
Additional CB Monitoring data provided over CS103
OST sensitivity now 60mA (was previously 180mA).
Language Text for "IED CONFIGURATOR" menu column header uses selected language (previously only English).
Bug Fixes.
Patch for V2.14
Studio ftp server
P445/EN M/B21+
Addendum
P445/EN
AD/B31+
P445/EN AD/C41
P445/EN M/B21+
Addendum
P445/EN
AD/B31+
P445/EN AD/C41
P445/EN M/B21+
Addendum
P445/EN
AD/B31+
P445/EN AD/C41
Page (AD) 1-26 P445/EN AD/C41
Chapter 16 - Firmware and Service Manual Version History (AD) 1 Update Documentation
Software version
Major Minor
Hard- ware suffix
Original date of Issue
E0 B J 31 May 2012
Description of changes
S1 compatibility
Technical document- ation
Release of P445 distance protection based on E0A.
Additional protocols release (DNP3, DNP3OE,
IEC61850+IEC103) by compare with A0/B0A
DR code optimize to release additional memory for DR pretrigger time
Improved IEC61850 Goose Performance
Changes to improve IEC61850 reporting on rapidly toggling status. Corrections to IEC61850 datamodel.
Improvements to IEC61850.
Status report over IEC61850 not in line with DDB signals
Directional negative sequence overcurrent will only reset from the tripped state by loss of current and not incorrect direction.
Schneider use alpha character for software release version.
Major version is not compatible with letters of cs103 protocol, both IED code and tools.
Distance zone 1 may mal-trip when simulated three-phase VT fail condition is applied.
Bug Fixes.
Patch for V2.14
Studio ftp server
P445/EN M/B21+
Addendum
P445/EN
AD/B31+
P445/EN AD/C41
Table 4 - Software versions and hardware suffix
Page (VH) 16-10 - Setting File and Relay Software Versions
Replace
Setting file software version
32
33
35
36
37
E0
32
33
Relay software version
35 36
37
Table 5 - Setting file software and relay software versions
E0
Page (VH) 16-11 - PSL File and Relay Software Versions
Replace
PSL file software version
32
33
35
36
37
E0
32
33
Relay software version
35 36
37
Table 6 - PSL file software version and relay software versions
Page (VH) 16-12 - Menu Text File and Relay Software Versions
Replace
E0
P445/EN AD/C41 Page (AD) 1-27
(AD) 1 Update Documentation Chapter 16 - Firmware and Service Manual Version History
Menu text file software version
32
33
35
36
37
E0
32
33
Relay software version
35 36
37
Table 7 - Menu text file software version and relay software versions
E0
Page (AD) 1-28 P445/EN AD/C41
MiCOM Pxxx SI Safety Information
Pxxx/EN SI/G12
SAFETY INFORMATION
CHAPTER SI
Page SI-1
SI Safety Information MiCOM Pxxx
Page SI-2 Pxxx/EN SI/G12
Contents SI Safety Information
CONTENTS
3 SYMBOLS AND LABELS ON THE EQUIPMENT
4 INSTALLING, COMMISSIONING AND SERVICING
5 DE-COMMISSIONING AND DISPOSAL
6 TECHNICAL SPECIFICATIONS FOR SAFETY
Pxxx/EN SI/G12 Page SI-3
SI Safety Information
Notes:
Contents
Page SI-4 Pxxx/EN SI/G12
Introduction SI Safety Information
1 INTRODUCTION
This guide and the relevant equipment documentation provide full information on safe handling, commissioning and testing of this equipment. This Safety Information section also includes reference to typical equipment label markings.
Documentation for equipment ordered from Schneider Electric is dispatched separately from manufactured goods and may not be received at the same time. Therefore this guide is provided to ensure that printed information which may be present on the equipment is fully understood by the recipient.
The technical data in this Safety Information section is typical only, see the technical data section of the relevant product publication(s) for data specific to a particular equipment.
WARNING Before carrying out any work on the equipment the user should be familiar with the contents of this Safety Information section and the ratings on the equipment’s rating label.
Reference should be made to the external connection diagram before the equipment is installed, commissioned or serviced.
Language-specific, self-adhesive User Interface labels are provided in a bag for some equipment.
Pxxx/EN SI/G12 Page SI-5
SI Safety Information
2
Health and Safety
HEALTH AND SAFETY
The information in the Safety Information section of the equipment documentation is intended to ensure that equipment is properly installed and handled in order to maintain it in a safe condition.
It is assumed that everyone who will be associated with the equipment will be familiar with the contents of that Safety Information section, or this Safety Guide.
When electrical equipment is in operation, dangerous voltages will be present in certain parts of the equipment. Failure to observe warning notices, incorrect use, or improper use may endanger personnel and equipment and also cause personal injury or physical damage.
Before working in the terminal strip area, the equipment must be isolated.
Proper and safe operation of the equipment depends on appropriate shipping and handling, proper storage, installation and commissioning, and on careful operation, maintenance and servicing. For this reason only qualified personnel may work on or operate the equipment.
Qualified personnel are individuals who:
Are familiar with the installation, commissioning, and operation of the equipment and of the system to which it is being connected;
Are able to safely perform switching operations in accordance with accepted safety engineering practices and are authorized to energize and de-energize equipment and to isolate, ground, and label it;
Are trained in the care and use of safety apparatus in accordance with safety engineering practices;
Are trained in emergency procedures (first aid).
The equipment documentation gives instructions for its installation, commissioning, and operation. However, the manuals cannot cover all conceivable circumstances or include detailed information on all topics. In the event of questions or specific problems, do not take any action without proper authorization. Contact the appropriate Schneider Electric technical sales office and request the necessary information.
Page SI-6 Pxxx/EN SI/G12
Symbols and Labels on the Equipment
3
3.1
SI Safety Information
SYMBOLS AND LABELS ON THE EQUIPMENT
For safety reasons the following symbols and external labels, which may be used on the equipment or referred to in the equipment documentation, should be understood before the equipment is installed or commissioned.
Symbols
Caution: refer to equipment documentation
Caution: risk of electric shock
Protective Conductor (*Earth) terminal
Functional/Protective Conductor (*Earth) terminal
Note: This symbol may also be used for a Protective Conductor
(Earth) Terminal if that terminal is part of a terminal block or sub-assembly e.g. power supply.
3.2
*CAUTION: The term “Earth” used throughout this technical manual is the direct equivalent of the North American term
“Ground”.
Labels
See Safety Guide (SFTY/4L M) for typical equipment labeling information.
Pxxx/EN SI/G12 Page SI-7
SI Safety Information
4
Installing, Commissioning and Servicing
INSTALLING, COMMISSIONING AND SERVICING
Manual Handling
Plan carefully, identify any possible hazards and determine whether the load needs to be moved at all. Look at other ways of moving the load to avoid manual handling. Use the correct lifting techniques and Personal Protective Equipment to reduce the risk of injury.
Many injuries are caused by:
Lifting heavy objects
Lifting things incorrectly
Pushing or pulling heavy objects
Using the same muscles repetitively.
Follow the Health and Safety at Work, etc Act 1974, and the Management of Health and
Safety at Work Regulations 1999.
Equipment Connections
Personnel undertaking installation, commissioning or servicing work for this equipment should be aware of the correct working procedures to ensure safety.
The equipment documentation should be consulted before installing, commissioning, or servicing the equipment.
Terminals exposed during installation, commissioning and maintenance may present a hazardous voltage unless the equipment is electrically isolated.
The clamping screws of all terminal block connectors, for field wiring, using M4 screws shall be tightened to a nominal torque of 1.3 Nm.
Equipment intended for rack or panel mounting is for use on a flat surface of a Type 1 enclosure, as defined by Underwriters Laboratories (UL).
Any disassembly of the equipment may expose parts at hazardous voltage, also electronic parts may be damaged if suitable ElectroStatic voltage Discharge (ESD) precautions are not taken.
If there is unlocked access to the rear of the equipment, care should be taken by all personnel to avoid electric shock or energy hazards.
Voltage and current connections shall be made using insulated crimp terminations to ensure that terminal block insulation requirements are maintained for safety.
Watchdog (self-monitoring) contacts are provided in numerical relays to indicate the health of the device. Schneider Electric strongly recommends that these contacts are hardwired into the substation's automation system, for alarm purposes.
To ensure that wires are correctly terminated the correct crimp terminal and tool for the wire size should be used.
The equipment must be connected in accordance with the appropriate connection diagram.
Protection Class I Equipment
Before energizing the equipment it must be earthed using the protective conductor terminal, if provided, or the appropriate termination of the supply plug in the case of plug connected equipment.
The protective conductor (earth) connection must not be removed since the protection against electric shock provided by the equipment would be lost.
When the protective (earth) conductor terminal (PCT) is also used to terminate cable screens, etc., it is essential that the integrity of the protective (earth) conductor is checked after the addition or removal of such functional earth connections. For M4 stud PCTs the integrity of the protective (earth) connections should be ensured by use of a locknut or similar.
The recommended minimum protective conductor (earth) wire size is 2.5 mm² (3.3 mm² for North America) unless otherwise stated in the technical data section of the equipment documentation, or otherwise required by local or country wiring regulations.
The protective conductor (earth) connection must be low-inductance and as short as possible.
Page SI-8 Pxxx/EN SI/G12
Installing, Commissioning and Servicing SI Safety Information
All connections to the equipment must have a defined potential. Connections that are pre-wired, but not used, should preferably be grounded when binary inputs and output relays are isolated. When binary inputs and output relays are connected to common potential, the pre-wired but unused connections should be connected to the common potential of the grouped connections.
Pre-Energization Checklist
Before energizing the equipment, the following should be checked:
Voltage rating/polarity (rating label/equipment documentation);
CT circuit rating (rating label) and integrity of connections;
Protective fuse rating;
Integrity of the protective conductor (earth) connection (where applicable);
Voltage and current rating of external wiring, applicable to the application.
Accidental Touching of Exposed Terminals
If working in an area of restricted space, such as a cubicle, where there is a risk of electric shock due to accidental touching of terminals which do not comply with IP20 rating, then a suitable protective barrier should be provided.
Equipment Use
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
Removal of the Equipment Front Panel/Cover
Removal of the equipment front panel/cover may expose hazardous live parts, which must not be touched until the electrical power is removed.
UL and CSA/CUL Listed or Recognized Equipment
To maintain UL and CSA/CUL Listing/Recognized status for North America the equipment should be installed using UL or CSA Listed or Recognized parts for the following items: connection cables, protective fuses/fuseholders or circuit breakers, insulation crimp terminals and replacement internal battery, as specified in the equipment documentation.
For external protective fuses a UL or CSA Listed fuse shall be used. The Listed type shall be a Class J time delay fuse, with a maximum current rating of 15 A and a minimum d.c. rating of 250 Vd.c., for example type AJT15.
Where UL or CSA Listing of the equipment is not required, a high rupture capacity
(HRC) fuse type with a maximum current rating of 16 Amps and a minimum d.c. rating of
250 Vd.c. may be used, for example Red Spot type NIT or TIA.
Equipment Operating Conditions
The equipment should be operated within the specified electrical and environmental limits.
Current Transformer Circuits
Do not open the secondary circuit of a live CT since the high voltage produced may be lethal to personnel and could damage insulation. Generally, for safety, the secondary of the line CT must be shorted before opening any connections to it.
For most equipment with ring-terminal connections, the threaded terminal block for current transformer termination has automatic CT shorting on removal of the module.
Therefore external shorting of the CTs may not be required, the equipment documentation should be checked to see if this applies.
For equipment with pin-terminal connections, the threaded terminal block for current transformer termination does NOT have automatic CT shorting on removal of the module.
External Resistors, including Voltage Dependent Resistors (VDRs)
Where external resistors, including Voltage Dependent Resistors (VDRs), are fitted to the equipment, these may present a risk of electric shock or burns, if touched.
Battery Replacement
Where internal batteries are fitted they should be replaced with the recommended type and be installed with the correct polarity to avoid possible damage to the equipment, buildings and persons.
Pxxx/EN SI/G12 Page SI-9
SI Safety Information Installing, Commissioning and Servicing
Insulation and Dielectric Strength Testing
Insulation testing may leave capacitors charged up to a hazardous voltage. At the end of each part of the test, the voltage should be gradually reduced to zero, to discharge capacitors, before the test leads are disconnected.
Insertion of Modules and PCB Cards
Modules and PCB cards must not be inserted into or withdrawn from the equipment whilst it is energized, since this may result in damage.
Insertion and Withdrawal of Extender Cards
Extender cards are available for some equipment. If an extender card is used, this should not be inserted or withdrawn from the equipment whilst it is energized. This is to avoid possible shock or damage hazards. Hazardous live voltages may be accessible on the extender card.
External Test Blocks and Test Plugs
Great care should be taken when using external test blocks and test plugs such as the
MMLG, MMLB and MiCOM P990 types, hazardous voltages may be accessible when using these. *CT shorting links must be in place before the insertion or removal of
MMLB test plugs, to avoid potentially lethal voltages.
*Note: When a MiCOM P992 Test Plug is inserted into the MiCOM P991
Test Block, the secondaries of the line CTs are automatically shorted, making them safe.
Fiber Optic Communication
Where fiber optic communication devices are fitted, these should not be viewed directly.
Optical power meters should be used to determine the operation or signal level of the device.
Cleaning
The equipment may be cleaned using a lint free cloth dampened with clean water, when no connections are energized. Contact fingers of test plugs are normally protected by petroleum jelly, which should not be removed.
Page SI-10 Pxxx/EN SI/G12
De-commissioning and Disposal
5
SI Safety Information
DE-COMMISSIONING AND DISPOSAL
De-commissioning
The supply input (auxiliary) for the equipment may include capacitors across the supply or to earth. To avoid electric shock or energy hazards, after completely isolating the supplies to the equipment (both poles of any dc supply), the capacitors should be safely discharged via the external terminals prior to de-commissioning.
Disposal
It is recommended that incineration and disposal to water courses is avoided. The equipment should be disposed of in a safe manner. Any equipment containing batteries should have them removed before disposal, taking precautions to avoid short circuits.
Particular regulations within the country of operation, may apply to the disposal of the equipment.
Pxxx/EN SI/G12 Page SI-11
SI Safety Information
6
6.1
6.2
6.3
6.4
Technical Specifications for Safety
TECHNICAL SPECIFICATIONS FOR SAFETY
Unless otherwise stated in the equipment technical manual, the following data is applicable.
Protective Fuse Rating
The recommended maximum rating of the external protective fuse for equipments is 16A,
High Rupture Capacity (HRC) Red Spot type NIT, or TIA, or equivalent. Unless otherwise stated in equipment technical manual, the following data is applicable. The protective fuse should be located as close to the unit as possible.
DANGER CTs must NOT be fused since open circuiting them may produce lethal hazardous voltages.
Protective Class
IEC 60255-27: 2005
EN 60255-27: 2005
Class I (unless otherwise specified in the equipment documentation).
This equipment requires a protective conductor (earth) connection to ensure user safety.
Installation Category
IEC 60255-27: 2005
EN 60255-27: 2005
Installation Category III (Overvoltage Category III)
Distribution level, fixed installation.
Equipment in this category is qualification tested at 5 kV peak, 1.2/50 µs, 500 , 0.5 J, between all supply circuits and earth and also between independent circuits.
Environment
The equipment is intended for indoor installation and use only. If it is required for use in an outdoor environment then it must be mounted in a specific cabinet of housing which will enable it to meet the requirements of IEC 60529 with the classification of degree of protection IP54 (dust and splashing water protected).
Pollution Degree
Altitude
Pollution Degree 2 Compliance is demonstrated by reference to safety standards.
Operation up to 2000m
Page SI-12 Pxxx/EN SI/G12
MiCOM (MT) 11 Maintenance
Pxxx/EN MT/A22
MAINTENANCE
CHAPTER 11
Page (MT) 11-1
(MT) 11 Maintenance MiCOM
Products covered by this chapter:
Hardware suffix:
P14x (P141, P142, P143, P144 & P145), P445, P44y (P443 and P446), P547, P54x (P543, P544,
P545 & P546), P841, P842 and P846
P14x (P141, P142, P143, P144 & P145) J
P44y (P443 and P446) K
P54x (P543, P544, P545 & P546) K
Software version:
P14x (P141, P142, P143, P144 & P145)
P44y (P443 and P446)
P54x (P543, P544, P545 & P546)
43
0550
45 & 55
Connection diagrams: P14x (P141, P142, P143, P144 & P145):
10P141/2/3/4/5xx (xx = 01 to 07)
P445:
10P445xx (xx = 01 to 04)
P44y:
10P44303 (SH 01 and 03)
10P44304 (SH 01 and 03)
10P44305 (SH 01 and 03)
10P44306 (SH 01 and 03)
10P44600
10P44601 (SH 1 to 2)
10P44602 (SH 1 to 2)
10P44603 (SH 1 to 2)
P547:
10P54702xx (xx = 01 to 02)
10P54703xx (xx = 01 to 02)
10P54704xx (xx = 01 to 02)
10P54705xx (xx = 01 to 02)
P54x (P543, P544, P545 & P546):
10P54302xx (xx = 01 to 02)
10P54303xx (xx = 01 to 02)
10P54400
10P54402xx (xx = 01 to 02)
10P54403xx (xx = 01 to 02)
10P54502xx (xx = 01 to 02)
10P54503xx (xx = 01 to 02)
10P54600
10P54602xx (xx = 01 to 02)
10P54603xx (xx = 01 to 02)
P841:
10P84100
10P84101 (SH 1 to 2)
10P84102 (SH 1 to 2)
10P84103 (SH 1 to 2)
10P84104 (SH 1 to 2)
10P84105 (SH 1 to 2)
P842:
10P842xx (xx = 01 to 02)
P846:
10P846xx (xx = 01 to 07)
Page (MT) 11-2 Pxxx/EN MT/A22
Contents (MT) 11 Maintenance
CONTENTS
Page (MT) 11-
Replacing the Complete Equipment IED/Relay
Instructions for Replacing the Battery
Pxxx/EN MT/A22 Page (MT) 11-3
(MT) 11 Maintenance
Notes:
Contents
Page (MT) 11-4 Pxxx/EN MT/A22
Maintenance Period (MT) 11 Maintenance
It is recommended that products supplied by Schneider Electric receive periodic monitoring after installation. In view of the critical nature of protective and control equipment, and their infrequent operation, it is desirable to confirm that they are operating correctly at regular intervals.
Schneider Electric protection and control equipment is designed for a life in excess of 20 years.
MiCOM relays are self-supervizing and so require less maintenance than earlier designs.
Most problems will result in an alarm so that remedial action can be taken. However, some periodic tests should be done to ensure that the equipment is functioning correctly and the external wiring is intact.
If the customer’s organization has a preventative maintenance policy, the recommended product checks should be included in the regular program. Maintenance periods depend on many factors, such as:
The operating environment
The accessibility of the site
The amount of available manpower
The importance of the installation in the power system
The consequences of failure
Pxxx/EN MT/A22 Page (MT) 11-5
2.2
2.3
2.4
(MT) 11 Maintenance
2.1
Maintenance Checks
Although some functionality checks can be performed from a remote location by using the communications ability of the equipment, these are predominantly restricted to checking that the equipment, is measuring the applied currents and voltages accurately, and checking the circuit breaker maintenance counters. Therefore it is recommended that maintenance checks are performed locally (i.e. at the equipment itself).
Warning Before carrying out any work on the equipment, the user should be familiar with the contents of the Safety Guide or the Technical Data chapter of this Technical Manual and also the ratings on the equipment’s rating label.
Alarms
The alarm status LED should first be checked to identify if any alarm conditions exist. If so, press the read key [ ] repeatedly to step through the alarms.
Clear the alarms to extinguish the LED.
Opto-Isolators
The opto-isolated inputs can be checked to ensure that the equipment responds to energization by repeating the commissioning test detailed in the Commissioning chapter
( MiCOM/EN CM ).
Output Relays
The output relays can be checked to ensure that they operate by repeating the commissioning test detailed in the Commissioning chapter ( MiCOM/EN CM )
Measurement Accuracy
If the power system is energized, the values measured by the equipment can be compared with known system values to check that they are in the approximate range that is expected. If they are, the analog/digital conversion and calculations are being performed correctly by the relay. Suitable test methods can be found in the
Commissioning chapter ( MiCOM/EN CM ).
Alternatively, the values measured by the equipment can be checked against known values injected via the test block, if fitted, or injected directly into the equipment terminals.
Suitable test methods can be found in the Commissioning chapter ( MiCOM/EN CM ).
These tests will prove the calibration accuracy is being maintained.
Page (MT) 11-6 Pxxx/EN MT/A22
Method of Repair
3
(MT) 11 Maintenance
METHOD OF REPAIR
If the equipment should develop a fault whilst in service, depending on the nature of the fault, the watchdog contacts will change state and an alarm condition will be flagged.
Due to the extensive use of surface-mount components, faulty Printed Circuit Boards
(PCBs) should be replaced, as it is not possible to perform repairs on damaged PCBs.
Therefore either the complete equipment module or just the faulty PCB (as identified by the in-built diagnostic software), can be replaced. Advice about identifying the faulty PCB can be found in the Troubleshooting chapter ( MiCOM/EN TS ).
The preferred method is to replace the complete equipment module as it ensures that the internal circuitry is protected against electrostatic discharge and physical damage at all times and overcomes the possibility of incompatibility between replacement PCBs.
However, it may be difficult to remove installed equipment due to limited access in the back of the cubicle and the rigidity of the scheme wiring.
Replacing PCBs can reduce transport costs but requires clean, dry conditions on site and higher skills from the person performing the repair. If the repair is not performed by an approved service center, the warranty will be invalidated.
Warning Before carrying out any work on the equipment, the user should be familiar with the contents of the Safety Guide or the Technical Data chapter of this Technical Manual and also the ratings on the equipment’s rating label.
This should ensure that no damage is caused by incorrect handling of the electronic components.
Pxxx/EN MT/A22 Page (MT) 11-7
(MT) 11 Maintenance
3.1
Method of Repair
Replacing the Complete Equipment IED/Relay
The case and rear terminal blocks have been designed to facilitate removal of the
IED/relay should replacement or repair become necessary without having to disconnect the scheme wiring.
Warning Before working at the rear of the equipment, isolate all voltage and current supplies to the equipment.
Note The MiCOM range has integral current transformer shorting switches which will close when the heavy duty terminal block is removed.
1. Disconnect the equipment’s earth, IRIG-B and fiber optic connections, as appropriate, from the rear of the device.
There are two types of terminal block used on the equipment, medium and heavy duty, which are fastened to the rear panel using crosshead screws. These are shown in the Commissioning chapter ( MiCOM/EN CM ).
Note The use of a magnetic bladed screwdriver is recommended to minimize the risk of the screws being left in the terminal block or lost.
2. Without exerting excessive force or damaging the scheme wiring, pull the terminal blocks away from their internal connectors.
3. Remove the screws used to fasten the equipment to the panel, rack, etc. These are the screws with the larger diameter heads that are accessible when the access covers are fitted and open.
Warning If the top and bottom access covers have been removed, do not remove the screws with the smaller diameter heads which are accessible. These screws secure the front panel to the equipment.
4. Withdraw the equipment carefully from the panel, rack, etc. because it will be heavy due to the internal transformers.
To reinstall the repaired or replacement equipment, follow the above instructions in reverse, ensuring that each terminal block is relocated in the correct position and the case earth, IRIG-B and fiber optic connections are replaced. To facilitate easy identification of each terminal block, they are labeled alphabetically with ‘A’ on the lefthand side when viewed from the rear.
Once reinstallation is complete, the equipment should be re-commissioned using the instructions in the Commissioning chapter ( MiCOM/EN CM ).
Page (MT) 11-8 Pxxx/EN MT/A22
Method of Repair
3.2
(MT) 11 Maintenance
Replacing a PCB
Replacing PCBs and other internal components must be undertaken only by Service
Centers approved by Schneider Electric. Failure to obtain the authorization of Schneider
Electric after sales engineers prior to commencing work may invalidate the product warranty.
Warning Before removing the front panel to replace a PCB, remove the auxiliary supply and wait 5s for the capacitors to discharge.
We strongly recommend that the voltage and current transformer connections and trip circuit are isolated.
Schneider Electric support teams are available world-wide. We strongly recommend that any repairs be entrusted to those trained personnel. For this reason, details on product disassembly and re-assembly are not included here.
Pxxx/EN MT/A22 Page (MT) 11-9
(MT) 11 Maintenance Re-Calibration
4 RE-CALIBRATION
Re-calibration is not required when a PCB is replaced unless it happens to be one of the boards in the input module; the replacement of either directly affects the calibration.
Warning Although it is possible to carry out re-calibration on site, this requires test equipment with suitable accuracy and a special calibration program to run on a PC. It is therefore recommended that the work be carried out by the manufacturer, or entrusted to an approved service center.
Page (MT) 11-10 Pxxx/EN MT/A22
Changing the Battery (MT) 11 Maintenance
5.1
5.2
5.3
Pxxx/EN MT/A22
Each relay/IED has a battery to maintain status data and the correct time when the auxiliary supply voltage fails. The data maintained includes event, fault and disturbance records and the thermal state at the time of failure.
This battery will periodically need changing, although an alarm will be given as part of the relay’s/IED’s continuous self-monitoring in the event of a low battery condition.
If the battery-backed facilities are not required to be maintained during an interruption of the auxiliary supply, the steps below can be followed to remove the battery, but do not replace with a new battery.
Warning Before carrying out any work on the equipment, the user should be familiar with the contents of the Safety Guide or the Technical Data chapter of this Technical Manual and also the ratings on the equipment’s rating label.
Instructions for Replacing the Battery
1. Open the bottom access cover on the front of the equipment.
2. Gently extract the battery from its socket. If necessary, use a small, insulated screwdriver to prize the battery free.
3. Ensure that the metal terminals in the battery socket are free from corrosion, grease and dust.
4. The replacement battery should be removed from its packaging and placed into the battery holder, taking care to ensure that the polarity markings on the battery agree with those adjacent to the socket.
Note Only use a type ½AA Lithium battery with a nominal voltage of 3.6 V and safety approvals such as UL (Underwriters Laboratory), CSA (Canadian
Standards Association) or VDE (Vereinigung Deutscher
Elektrizitätswerke).
5. Ensure that the battery is securely held in its socket and that the battery terminals are making good contact with the metal terminals of the socket.
6. Close the bottom access cover.
Post Modification Tests
To ensure that the replacement battery will maintain the time and status data if the auxiliary supply fails, check cell [0806: DATE and TIME, Battery Status] reads ‘Healthy’.
If further confirmation that the replacement battery is installed correctly is required, the commissioning test is described in the Commissioning chapter ( MiCOM/EN CM ), ‘Date and Time’, can be performed.
Battery Disposal
The battery that has been removed should be disposed of in accordance with the disposal procedure for Lithium batteries in the country in which the equipment is installed.
Page (MT) 11-11
(MT) 11 Maintenance Cleaning
6 CLEANING
Warning Before cleaning the equipment ensure that all ac and dc supplies, current transformer and voltage transformer connections are isolated to prevent any chance of an electric shock whilst cleaning.
The equipment may be cleaned using a lint-free cloth moistened with clean water. The use of detergents, solvents or abrasive cleaners is not recommended as they may damage the relay’s surface and leave a conductive residue.
Page (MT) 11-12 Pxxx/EN MT/A22
MiCOM Pxxx SG Symbols and Glossary
Pxxx/EN SG/A05
SYMBOLS AND GLOSSARY
CHAPTER SG
Page SG-1
SG Symbols and Glossary MiCOM Pxxx
Page SG-2 Pxxx/EN SG/A05
Contents SG Symbols and Glossary
CONTENTS
1 Acronyms and Abbreviations
2 Company Proprietary Terms
3 ANSI Terms
4 Concatenated Terms
5 Units for Digital Communications
6 American vs British English Terminology
7 Logic Symbols and Terms
8 Logic Timers
9 Logic Gates
TABLES
Page SG-
Table 1 - Acronyms and abbreviations 11
Table 2 - Company-proprietary terms 12
Table 3 - ANSI abbreviations 13
Table 4 - ANSI descriptions 16
Table 5 - Concatenated terms 17
Table 6 - Units for digital communications 18
Table 7 - American vs British English terminology 19
Table 8 - Logic Symbols and Terms 24
Page SG-
5
12
13
17
18
19
20
25
27
FIGURES
Page SG-
Pxxx/EN SG/A05 Page SG-3
SG Symbols and Glossary
Notes:
Figures
Page SG-4 Pxxx/EN SG/A05
Acronyms and Abbreviations SG Symbols and Glossary
Pxxx/EN SG/A05
<
>
Term Description
Less than: Used to indicate an “under” threshold, such as undercurrent (current dropout).
Greater than: Used to indicate an “over” threshold, such as overcurrent (current overload)
A Ampere
AC / ac
ACSI
ACSR
Alternating Current
Abstract Communication Service Interface
Aluminum Conductor Steel Reinforced
ANSI American National Standards Institute
AR Auto-Reclose.
ARIP
ASCII
Auto-Reclose In Progress
American Standard Code for Information Interchange
ATEX
AUX / Aux
AWG
ATEX is the Potentially Explosive Atmospheres directive 94/9/EC
Auxiliary
American Wire Gauge
BAR
BCD
BCR
BDEW
Block Auto-Reclose signal.
Binary Coded Decimal
Binary Counter Reading
Bundesverband der Energie- und Wasserwirtschaft | Startseite (i.e. German
Association of Energy and Water Industries)
BitMaP – a file format for a computer graphic
Blocking Overreach Protection - a blocking aided-channel scheme.
BMP
BOP
BPDU
BRCB
BRP
BU
C/O
Bridge Protocol Data Unit
Buffered Report Control Block
Beacon Redundancy Protocol
Backup: Typically a back-up protection element
A ChangeOver contact having normally-closed and normally-open connections:
Often called a “form C” contact.
CB Aux.
CBF
Circuit Breaker auxiliary contacts: Indication of the breaker open/closed status.
Circuit Breaker Failure protection
Ch
Check Synch
CLIO
CIP
Channel: usually a communications or signaling channel
Check Synchronizing function
Current Loop Input Output:
0-1 mA/0-10 mA/0-20 mA/4-20 mA transducer inputs and outputs
CLI = current loop input - 0-1 mA/0-10 mA/0-20 mA/4-20 mA transducer input
CLO = current loop output - 0-1 mA/0-10 mA/0-20 mA/4-20 mA transducer output
Critical Infrastructure Protection standards
Page SG-5
SG Symbols and Glossary Acronyms and Abbreviations
CSV
CTRL
CTS
CTx
CUL
CVT
DAU
DC / dc
DCC
DCE
DDB
DDR
DEF df/dt df/dt>1
Term
CLK / Clk
Cls
CMV
CNV
CPNI
CRC
CRV
CRx
Description
Clock
Close - generally used in the context of close functions in circuit breaker control.
Complex Measured Value
Current No Volts
Centre for the Protection of National Infrastructure
Cyclic Redundancy Check
Curve (file format for curve information)
Channel Receive: Typically used to indicate a teleprotection signal received.
Comma Separated Values (a file format for database information)
Control - as used for the Control Inputs function
Current Transformer Supervision: To detect CT input failure.
Channel Transmit: Typically used to indicate a teleprotection signal send.
Canadian Underwriters Laboratory
Capacitor-coupled Voltage Transformer - equivalent to terminology CCVT.
Data Acquisition Unit
Direct Current
An Omicron compatible format
Data Communication Equipment
Digital Data Bus within the programmable scheme logic: A logic point that has a zero or 1 status. DDB signals are mapped in logic to customize the relay’s operation.
Dynamic Disturbance Recorder
Directional Earth Fault protection: A directionalized ground fault aided scheme.
Rate of Change of Frequency
First stage of df/dt protection
DHCP
DHP
DIN
DITA
DLDB
DLLB
DLY / Dly
DMT
Dynamic Host Configuration Protocol
Dual Homing Protocol
Deutsches Institut für Normung (German standards body)
Darwinian Information Typing Architecture
Dead-Line Dead-Bus : In system synchronism check, indication that both the line and bus are de-energised.
Dead-Line Live-Bus : In system synchronism check, indication that the line is de-energised whilst the bus is energised.
Time Delay
Definite Minimum Time
Page SG-6 Pxxx/EN SG/A05
Acronyms and Abbreviations SG Symbols and Glossary
Term
DNP
DPWS
DSP
DST
DT
DTD
DTS
EF or E/F
EIA
ELR
ENA
Description
Distributed Network Protocol
Device Profile for Web Services
Digital Signal Processor
Daylight Saving Time
Definite Time: in the context of protection elements:
An element which always responds with the same constant time delay on operation.
Abbreviation of “Dead Time” in the context of auto-reclose:
Document Type Definition
Date and Time Stamp
Earth Fault (Directly equivalent to Ground Fault)
Electronic Industries Alliance
Environmental Lapse Rate
Energy Networks Association
FAA
FFail
FFT
FIR
FLC
FLT / Flt
Fn or FN
FPGA
FPS
FTP
FWD, Fwd or
Fwd.
Ageing Acceleration Factor: Used by Loss of Life (LOL) element
A field failure (loss of excitation) element:
Could be labeled 40 in ANSI terminology.
Fast Fourier Transform
Finite Impulse Response
Full load current: The nominal rated current for the circuit.
Fault - typically used to indicate faulted phase selection.
Function
Field Programmable Gate Array
Frames Per Second
File Transfer Protocol or Foil Twisted Pair
Indicates an element responding to a flow in the “Forward” direction
Gen Diff
A generator differential element:
Could be labeled 87G in ANSI terminology.
Gen-Xformer Diff
A generator-transformer differential element:
Could be labeled 87GT in ANSI terminology.
GIF
GND / Gnd
GOOSE
Graphic Interchange Format – a file format for a computer graphic
Ground: used in distance settings to identify settings that relate to ground (earth) faults.
Generic Object Oriented Substation Event
GPS
GRP / Grp
GSE
GSSE
Global Positioning System
Group. Typically an alternative setting group.
General Substation Event
Generic Substation Status Event
GUI
HMI
Graphical User Interface
Human Machine Interface
Pxxx/EN SG/A05 Page SG-7
SG Symbols and Glossary Acronyms and Abbreviations
Term
HSR
HTML
High-availability Seamless Ring
Hypertext Markup Language
I Current
Description
I/O Input/Output
I/P Input
IANA Internet Assigned Numbers Authority
ICAO
ID
IDMT
International Civil Aviation Organization
Identifier or Identification. Often a label used to track a software version installed.
Inverse Definite Minimum Time. A characteristic whose trip time depends on the measured input (e.g. current) according to an inverse-time curve.
IED
IEEE
IETF
Inh
Inst
Intelligent Electronic Device - a term used to describe microprocessor-based controllers of power system equipment. Common types of IEDs include protective relaying devices, load tap changer controllers, circuit breaker controllers, capacitor bank switches, recloser controllers, voltage regulators, etc.
Institute of Electrical and Electronics Engineers
Internet Engineering Task Force
An Inhibit signal
An element with Instantaneous operation: i.e. having no deliberate time delay.
IRIG
ISA
ISA
ISO
JPEF
InterRange Instrumentation Group
International Standard Atmosphere
Instrumentation Systems and Automation Society
International Standards Organization
Joint Photographic Experts Group – a file format for a computer graphic
L Live
LAN Local Area Network
LCD
LD
Liquid Crystal Display: The front-panel text display on the relay.
Level Detector: An element responding to a current or voltage below its set threshold.
LDOV
LDUV
Level Detector for Overvoltage
Level Detector for Undervoltage
LED
LLDB
Ln
Light Emitting Diode: Red or green indicator on the front-panel.
Live-Line Dead-Bus : In system synchronism check, indication that the line is energized whilst the bus is de-energized.
Natural logarithm
LoL
LPDU
LPHD
A Loss of Load scheme, providing a fast distance trip without needing a signaling channel.
Link Protocol Data Unit
Logical Physical Device
MC MultiCast
MCB Miniature Circuit Breaker
Page SG-8 Pxxx/EN SG/A05
Acronyms and Abbreviations SG Symbols and Glossary
Term
MIDOS
Description
Modular Integrated DrawOut System
MRP Media Redundancy Protocol
N Neutral
N/C
N/O
NERC
NIST
NPS
NVD
A Normally Closed or “break” contact: Often called a “form B” contact.
A Normally Open or “make” contact: Often called a “form A” contact.
North American Reliability Corporation
National Institute of Standards and Technology
Negative Phase Sequence
Neutral voltage displacement: Equivalent to residual overvoltage protection.
NXT Abbreviation of “Next”: In connection with hotkey menu navigation.
O/C Overcurrent
O/P Output
OCB Oil Circuit Breaker
Opto
OSI
An Optically coupled logic input. Alternative terminology: binary input.
Open Systems Interconnection
PCT
PDC
Ph
Protective Conductor Terminal (Ground)
Phasor Data Concentrator
Phase - used in distance settings to identify settings that relate to phase-phase faults.
PMU
PNG
Pol
POR
PRP
PSB
PSL
PSlip
Phasor Measurement Unit
Portable Network Graphics – a file format for a computer graphic
Polarize - typically the polarizing voltage used in making directional decisions.
A Permissive OverReaching transfer trip scheme (alternative terminology:
POTT).
Parallel Redundancy Protocol
Power Swing Blocking, to detect power swing/out of step functions (ANSI 78).
Programmable Scheme Logic: The part of the relay’s logic configuration that can be modified by the user, using the graphical editor within MiCOM S1 Studio software.
A Pole slip (out of step - OOS) element: could be labeled 78 in ANSI terminology.
PTP
PUR
Precision Time Protocol
A Permissive UnderReaching transfer trip scheme (alternative terminology:
PUTT).
Q Quantity defined as per unit value
R Resistance
R&TTE Radio and Telecommunications Terminal Equipment
Pxxx/EN SG/A05 Page SG-9
SG Symbols and Glossary Acronyms and Abbreviations
SPAR
SPC
SPDT
SPS
SSL
STP
Term
RBAC
RCA
REB
REF
Rev.
RMS / rms
RP
RS232
RS485
RST or Rst
RSTP
RTD
RTU
Rx
SBS
SC
SCADA
SMV
SNTP
SOA
SOAP
SOC
SOTF
Description
Role Based Access Control
Relay Characteristic Angle - The center of the directional characteristic.
Redundant Ethernet Board
Restricted Earth Fault
Indicates an element responding to a flow in the “reverse” direction
Root mean square. The equivalent a.c. current: Taking into account the fundamental, plus the equivalent heating effect of any harmonics.
Rear Port: The communication ports on the rear of the IED
A common serial communications standard defined by the EIA
A common serial communications standard defined by the EIA (multi-drop)
Reset generally used in the context of reset functions in circuit breaker control.
Rapid Spanning Tree Protocol
Resistance Temperature Device
Remote Terminal Unit
Receive: Typically used to indicate a communication transmit line/pin.
Straight Binary Second
Synch-Check or system Synchronism Check.
Supervisory Control and Data Acquisition
SCU Substation Control Unit
SEF Sensitive Earth Fault Protection
Sen Sensitive
SHP
SIR
Self Healing Protocol
Source Impedance Ratio
Sampled Measured Values
Simple Network Time Protocol
Service Oriented Architecture
Simple Object Access Protocol
Second of Century
Switch on to Fault protection. Modified protection on manual closure of the circuit breaker.
SVC
SVM
Single pole auto-reclose.
Single Point Controllable
Single Pole Dead Time. The dead time used in single pole auto-reclose cycles.
Single Point Status
Source Impedance Ratio
Shielded Twisted Pair or
Spanning Tree Protocol
Sampled Value Model
Sampled Value Model
Page SG-10 Pxxx/EN SG/A05
Acronyms and Abbreviations SG Symbols and Glossary
TAF
Term
TCS
TCS
TD
TE
THD
Turbine Abnormal Frequency
Description
Second of Century
Trip Circuit Supervision
Time Dial. The time dial multiplier setting: Applied to inverse-time curves
(ANSI/IEEE).
Unit for case measurements: One inch = 5TE units
Total Harmonic Distortion
TIFF
TLS
TMS
TOC
Tagged Image File Format – a file format for a computer graphic
Transport Layer Security protocol
Time Multiplier Setting: Applied to inverse-time curves (IEC)
Trip On Close (“line check”) protection. Offers SOTF and TOR functionality.
TOR
Trip On Reclose protection. Modified protection on autoreclosure of the circuit breaker.
TP Two-Part
TVE Total Vector Error
Tx Transmit
UDP User Datagram Protocol
UPCT
UTC
VC
VCO
VDEP OC>
VDR
User Programmable Curve Tool
Universal Time Coordinated
V Voltage
VA Phase A voltage: Sometimes L1, or red phase
VB Phase B voltage: Sometimes L2, or yellow phase
Phase C voltage: Sometimes L3, or blue phase
Voltage Controlled Overcurrent element
A voltage dependent overcurrent element: could be a voltage controlled or voltage restrained overcurrent element and could be labeled 51V in ANSI terminology.
Voltage Dependant Resistor
V/Hz
Vk
An overfluxing element, flux is proportional to voltage/frequency: could be labeled 24 in ANSI terminology.
IEC knee point voltage of a current transformer.
VTS
WAN
Voltage Transformer Supervision: To detect VT input failure.
Wide Area Network
Xformer Transformer
XML Extensible Markup Language
Table 1 - Acronyms and abbreviations
Pxxx/EN SG/A05 Page SG-11
SG Symbols and Glossary Company Proprietary Terms
Symbol
Courier
Metrosil
MiCOM
Description
Schneider Electric’s proprietary SCADA communications protocol
Brand of non-linear resistor produced by M&I Materials Ltd.
Schneider Electric’s brand of protection relays
Table 2 - Company-proprietary terms
Page SG-12 Pxxx/EN SG/A05
ANSI Terms SG Symbols and Glossary
ANSI no.
3PAR
3PDT
52a
52b
64R
64S
Description
Three pole auto-reclose.
Three pole dead time. The dead time used in three pole auto-reclose cycles.
A circuit breaker closed auxiliary contact: The contact is in the same state as the breaker primary contacts
A circuit breaker open auxiliary contact: The contact is in the opposite state to the breaker primary contacts
Rotor earth fault protection
100% stator earth (ground) fault protection using a low frequency injection method.
Table 3 - ANSI abbreviations
ANSI no. Function
Current Protection Functions
Description
50G/51G
46
46BC
Sensitive earth fault
Earth fault protection based on measured or calculated residual current values:
50N/51N: residual current calculated or measured by 3 phase current sensors
Sensitive earth fault protection based on measured residual current values:
50G/51G: residual current measured directly by a specific sensor such as a core balance CT
If a breaker fails to be triggered by a tripping order, as detected by the non-extinction of the fault current, this backup protection sends a tripping order to the upstream or adjacent breakers.
Negative sequence / unbalance
Protection against phase unbalance, detected by the measurement of negative sequence current:
sensitive protection to detect 2-phase faults at the ends of long lines
protection of equipment against temperature build-up, caused by an unbalanced power supply, phase inversion or loss of phase, and against phase current unbalance
Broken conductor protection
Protection against phase imbalance, detected by measurement of I2/I1.
Protection against thermal damage caused by overloads on machines (transformers, motors or generators).
The thermal capacity used is calculated according to a mathematical model which takes overload into account:
current RMS values
ambient
negative sequence current, a cause of motor rotor temperature rise
Re-Closer
79 Recloser
Automation device used to limit down time after tripping due to transient or semipermanent faults on overhead lines. The recloser orders automatic reclosing of the breaking device after the time delay required to restore the insulation has elapsed.
Recloser operation is easy to adapt for different operating modes by parameter setting.
Directional Current Protection
67N/67NC type 1 and
67
Directional phase overcurrent
Phase-to-phase short-circuit protection, with selective tripping according to fault current direction. It comprises a phase overcurrent function associated with direction detection, and picks up if the phase overcurrent function in the chosen direction (line or busbar) is activated for at least one of the three phases.
Pxxx/EN SG/A05 Page SG-13
SG Symbols and Glossary ANSI Terms
ANSI no.
67N/67NC
67N/67NC type 1
67N/67NC type 2
Function
Directional earth fault
Directional current protection
Directional current protection
Description
Earth fault protection, with selective tripping according to fault current direction.
Three types of operation:
Type 1: the protection function uses the projection of the I0 vector
Type 2: the protection function uses the I0 vector magnitude with half-plane tripping zone
Type 3: the protection function uses the I0 vector magnitude with angular sector tripping zone
Directional earth fault protection for impedant, isolated or compensated neutral systems, based on the projection of measured residual current.
Directional overcurrent protection for impedance and solidly earthed systems, based on measured or calculated residual current. It comprises an earth fault function associated with direction detection, and picks up if the earth fault function in the chosen direction
(line or busbar) is activated.
67N/67NC type 3
Directional current protection
Directional overcurrent protection for distribution networks in which the neutral earthing system varies according to the operating mode, based on measured residual current. It comprises an earth fault function associated with direction detection (angular sector tripping zone defined by 2 adjustable angles), and picks up if the earth fault function in the chosen direction (line or busbar) is activated.
Directional Power Protection Functions
32P
32Q/40
Directional active overpower
Directional reactive overpower
Two-way protection based on calculated active power, for the following applications:
active overpower protection to detect overloads and allow load shedding
reverse active power protection:
against generators running like motors when the generators consume active power
against motors running like generators when the motors supply active power
Two-way protection based on calculated reactive power to detect field loss on synchronous machines:
reactive overpower protection for motors which consume more reactive power with field loss
reverse reactive overpower protection for generators which consume reactive power with field loss.
Machine Protection Functions
Protection of pumps against the consequences of a loss of priming by the detection of motor no-load operation. undercurrent
It is sensitive to a minimum of current in phase 1, remains stable during breaker tripping and may be inhibited by a logic input.
48/51LR/14
66
Protection of motors against overheating caused by:
excessive motor starting time due to overloads (e.g. conveyor) or insufficient supply voltage.
Locked rotor / excessive starting time
The reacceleration of a motor that is not shut down, indicated by a logic input, may be considered as starting.
locked rotor due to motor load (e.g. crusher):
in normal operation, after a normal start
directly upon starting, before the detection of excessive starting time, with detection of locked rotor by a zero speed detector connected to a logic input, or by the underspeed function.
Starts per hour
Protection against motor overheating caused by:
too frequent starts: motor energizing is inhibited when the maximum allowable number of starts is reached, after counting of:
starts per hour (or adjustable period)
consecutive motor hot or cold starts (reacceleration of a motor that is not shut down, indicated by a logic input, may be counted as a start)
starts too close together in time: motor re-energizing after a shutdown is only allowed after an adjustable waiting time.
Page SG-14 Pxxx/EN SG/A05
ANSI Terms SG Symbols and Glossary
ANSI no.
50V/51V
Function
Voltage-restrained overcurrent
Description
Phase-to-phase short-circuit protection, for generators. The current tripping set point is voltage-adjusted in order to be sensitive to faults close to the generator which cause voltage drops and lowers the short-circuit current.
38/49T
Temperature monitoring
Voltage Protection Functions
27D
Positive sequence undervoltage
27R
Remanent undervoltage
Protection that detects abnormal temperature build-up by measuring the temperature inside equipment fitted with sensors:
transformer: protection of primary and secondary windings
motor and generator: protection of stator windings and bearings.
Protection of motors against faulty operation due to insufficient or unbalanced network voltage, and detection of reverse rotation direction.
Protection used to check that remanent voltage sustained by rotating machines has been cleared before allowing the busbar supplying the machines to be re-energized, to avoid electrical and mechanical transients.
59 Overvoltage
Detection of abnormally high network voltage or checking for sufficient voltage to enable source transfer. Works with phase-to-phase or phase-to-neutral voltage, each voltage being monitored separately.
59N
47
Neutral voltage displacement
Negative sequence overvoltage
Detection of insulation faults by measuring residual voltage in isolated neutral systems.
Protection against phase unbalance resulting from phase inversion, unbalanced supply or distant fault, detected by the measurement of negative sequence voltage.
Frequency Protection Functions
81O Overfrequency
Detection of abnormally high frequency compared to the rated frequency, to monitor power supply quality. Other organizations may use 81H instead of 81O.
Detection of abnormally low frequency compared to the rated frequency, to monitor power supply quality. The protection may be used for overall tripping or load shedding.
Protection stability is ensured in the event of the loss of the main source and presence of remanent voltage by a restraint in the event of a continuous decrease of the frequency, which is activated by parameter setting. Other organizations may use 81L instead of 81U.
Protection function used for fast disconnection of a generator or load shedding control.
Based on the calculation of the frequency variation, it is insensitive to transient voltage disturbances and therefore more stable than a phase-shift protection function.
81R
Rate of change of frequency
Disconnection
In installations with autonomous production means connected to a utility, the “rate of change of frequency” protection function is used to detect loss of the main system in view of opening the incoming circuit breaker to:
protect the generators from a reconnection without checking synchronization
avoid supplying loads outside the installation.
Load shedding
The “rate of change of frequency” protection function is used for load shedding in combination with the underfrequency protection to:
either accelerate shedding in the event of a large overload
or inhibit shedding following a sudden drop in frequency due to a problem that should not be solved by shedding.
Dynamic Line Rating (DLR) Protection Functions
Pxxx/EN SG/A05 Page SG-15
SG Symbols and Glossary ANSI Terms
ANSI no.
49DLR
Function
Dynamic line rating
(DLR)
Description
Protection of overhead lines based on calculation of rating or ampacity to dynamically take into account the effect of prevailing weather conditions as monitored by external sensors for:
Ambient
Wind
Wind
Solar
Table 4 - ANSI descriptions
Page SG-16 Pxxx/EN SG/A05
Concatenated Terms
Undercurrent
Overcurrent
Overfrequency
Underfrequency
Undervoltage
Overvoltage
Table 5 - Concatenated terms
Term
SG Symbols and Glossary
Pxxx/EN SG/A05 Page SG-17
SG Symbols and Glossary
5
Units for Digital Communications
UNITS FOR DIGITAL COMMUNICATIONS
Unit b bit
B Byte kb Kilobit(s) kbps Kilobits per second kB Kilobyte(s)
Mb Megabit(s)
Description
Mbps Megabits per second
MB Megabyte(s)
Gb Gigabit(s)
Gbps Gigabits per second
GB Gigabyte(s)
Tb Terabit(s)
Tbps Terabits per second
TB Terabyte(s)
Table 6 - Units for digital communications
Page SG-18 Pxxx/EN SG/A05
American vs British English Terminology
6
SG Symbols and Glossary
AMERICAN VS BRITISH ENGLISH TERMINOLOGY
British English
…ae… …e…
…ence …ense
…ise …ize
…oe… …e…
…ogue …og
…our …or
…ourite …orite
…que …ck
…re …er
…yse …yze
Aluminium Aluminum
Centre Center
Earth Ground
Fibre Fiber
Ground Earth
Speciality Specialty
American English
Table 7 - American vs British English terminology
Pxxx/EN SG/A05 Page SG-19
SG Symbols and Glossary Logic Symbols and Terms
7 LOGIC SYMBOLS AND TERMS
<
>
&
Symbol Description
Logical “AND”: Used in logic diagrams to show an AND-gate function.
“Sigma”: Used to indicate a summation, such as cumulative current interrupted.
“Tau”: Used to indicate a time constant, often associated with thermal characteristics.
System angular frequency
Less than: Used to indicate an “under” threshold, such as undercurrent (current dropout).
Greater than: Used to indicate an “over” threshold, such as overcurrent (current overload) o
1
ABC
A small circle on the input or output of a logic gate: Indicates a NOT (invert) function.
Logical “OR”: Used in logic diagrams to show an OR-gate function.
Clockwise phase rotation.
ACB Anti-Clockwise phase rotation.
C Capacitance df/dt df/dt>1
Rate of Change of Frequency protection
First stage of df/dt protection
I>
I>1
I>2
I>3
I>4
F<
F>
F<1
Underfrequency protection: Could be labeled 81-U in ANSI terminology.
Overfrequency protection: Could be labeled 81-O in ANSI terminology.
First stage of under frequency protection: Could be labeled 81-U in ANSI terminology.
F>1 f max f min f n
First stage of over frequency protection: Could be labeled 81-O in ANSI terminology.
Maximum required operating frequency
Minimum required operating frequency
Nominal operating frequency
I
I Current
Current raised to a power: Such as when breaker statistics monitor the square of ruptured current squared ( power = 2).
I’f
I<
I>>
Maximum internal secondary fault current (may also be expressed as a multiple of In)
An undercurrent element: Responds to current dropout.
Current setting of short circuit element
I0
A phase overcurrent protection: Could be labeled 50/51 in ANSI terminology.
First stage of phase overcurrent protection: Could be labeled 51-1 in ANSI terminology.
Second stage of phase overcurrent protection: Could be labeled 51-2 in ANSI terminology.
Third stage of phase overcurrent protection: Could be labeled 51-3 in ANSI terminology.
Fourth stage of phase overcurrent protection: Could be labeled 51-4 in ANSI terminology.
Earth fault current setting
Zero sequence current: Equals one third of the measured neutral/residual current.
A
Hz/s
Hz/s
Hz
Hz
Hz
Hz
Hz
Hz
Hz
A rad
Units
An
A
A
A
A
A
A
In
A
A
I2
I2>
I2pol
I2therm>
IA
IB
IC
Idiff
Negative sequence current.
Negative sequence overcurrent protection (NPS element).
Negative sequence polarizing current.
A negative sequence thermal element: Could be labeled 46T in ANSI terminology.
Phase A current: Might be phase L1, red phase.. or other, in customer terminology.
Phase B current: Might be phase L2, yellow phase.. or other, in customer terminology.
Phase C current: Might be phase L3, blue phase.. or other, in customer terminology.
Current setting of biased differential element
A
A
A
A
A
A
A
A
Page SG-20 Pxxx/EN SG/A05
Logic Symbols and Terms SG Symbols and Glossary
Symbol
If
If max
If max int
If Z1
Ife
IfeZ1
Description
Maximum secondary through-fault current
Maximum secondary fault current (same for all feeders)
Maximum secondary contribution from a feeder to an internal fault
Maximum secondary phase fault current at Zone 1 reach point
Maximum secondary through fault earth current
Maximum secondary earth fault current at Zone 1 reach point
I
Ifn
Ifp
Maximum prospective secondary earth fault current or 31 x I> setting (whichever is lowest)
Maximum prospective secondary phase fault current or 31 x I> setting (whichever is lowest)
I m
IM64 InterMiCOM64.
IMx n
IN
IN>
IN>1
InterMiCOM64 bit (x=1 to 16)
Current transformer nominal secondary current.
The rated nominal current of the relay: Software selectable as 1 amp or 5 amp to match the line
CT input.
A
Neutral current, or residual current: This results from an internal summation of the three measured phase currents.
A
A neutral (residual) overcurrent element: Detects earth/ground faults.
First stage of ground overcurrent protection: Could be labeled 51N-1 in ANSI terminology.
A
A
A
A
A
A
A
A
A
A
A
Units
K
1
K
2
K e km
K max
K rpa
K s
K ssc
K t
Is
IS1
IS2
I
SEF
>
Isn
Isp
Ist
IN>2
Inst
I/O
Second stage of ground overcurrent protection: Could be labeled 51N-2 in ANSI terminology.
An element with “instantaneous” operation: i.e. having no deliberate time delay.
Inputs and Outputs - used in connection with the number of optocoupled inputs and output contacts within the relay.
A
I/P Input
Iref Reference current of P63x calculated from the reference power and nominal voltage
IREF>
IRm2
A
A Restricted Earth Fault overcurrent element: Detects earth (ground) faults. Could be labeled 64 in
ANSI terminology.
A
Second knee-point bias current threshold setting of P63x biased differential element A
Value of stabilizing current
Differential current pick-up setting of biased differential element
Bias current threshold setting of biased differential element
Sensitive earth fault overcurrent element.
Rated secondary current (I secondary nominal)
Stage 2 and 3 setting
Motor start up current referred to CT secondary side
A
A
A
A
A
A
A kZm
Lower bias slope setting of biased differential element
Higher bias slope setting of biased differential element
Dimensioning factor for earth fault
Distance in kilometers
Maximum dimensioning factor
Dimensioning factor for reach point accuracy
Dimensioning factor dependent upon through fault current
Short circuit current coefficient or ALF
Dimensioning factor dependent upon operating time
The mutual compensation factor (mutual compensation of distance elements and fault locator for parallel line coupling effects).
%
%
Pxxx/EN SG/A05 Page SG-21
SG Symbols and Glossary Logic Symbols and Terms
Symbol kZN
Description
The residual compensation factor: Ensuring correct reach for ground distance elements.
L Inductance m1 Lower bias slope setting of P63x biased differential element m2 mi
N
Higher bias slope setting of P63x biased differential element
Distance in miles.
Indication of “Neutral” involvement in a fault: i.e. a ground (earth) fault.
-P>
P>
P<
P1
A reverse power (W) element: could be labeled 32R in ANSI terminology.
An overpower (W) element: could be labeled 32O in ANSI terminology.
A low forward power (W) element: could be labeled 32L in ANSI terminology.
Used in IEC terminology to identify the primary CT terminal polarity: Replace by a dot when using
ANSI standards.
Used in IEC terminology to identify the primary CT terminal polarity: The non-dot terminal.
Rotating plant rated single phase power
P2
P n
PN>
Q<
Wattmetric earth fault protection: Calculated using residual voltage and current quantities.
A reactive under power (VAr) element
R Resistance ( )
R< or 64S R<
A 100% stator earth (ground) fault via low frequency injection under resistance element: could be labeled 64S in ANSI terminology.
R Gnd. A distance zone resistive reach setting: Used for ground (earth) faults.
R Ph A distance zone resistive reach setting used for Phase-Phase faults.
W
Units
A
None
None
Rl
Rr
Rrn
Resistance of single lead from relay to current transformer
Resistance of any other protective relays sharing the current transformer
Resistance of relay neutral current input
Rrp
Rs
Resistance of relay phase current input
Value of stabilizing resistor
Rx
S<
S1
S2
S2> t t’
Receive: typically used to indicate a communication receive line/pin.
An apparent under power (VA) element
Used in IEC terminology to identify the secondary CT terminal polarity: Replace by a dot when using ANSI standards.
Used in IEC terminology to identify the secondary CT terminal polarity: The non-dot terminal.
Also used to signify negative sequence apparent power, S2 = V2 x I2.
A negative sequence apparent power element, S2 = V2 x I2.
A time delay.
Duration of first current flow during auto-reclose cycle
T1
TF
Primary system time constant
Through Fault monitoring tfr Auto-reclose dead time
Thermal I> A stator thermal overload element: could be labeled 49 in ANSI terminology.
Thru/TF tIdiff
Ts
Through Fault monitoring
Current differential operating time
Secondary system time constant
Tx Transmit: typically used to indicate a communication transmit line/pin.
V Voltage.
V< An undervoltage element: could be labeled 27 in ANSI terminology
V
V s s s s s
Page SG-22 Pxxx/EN SG/A05
Logic Symbols and Terms SG Symbols and Glossary
Z1
Z1X
Z2
Z2
ZP
Symbol
V<1
V<2
V>
V>1
V>2
V0
Description
First stage of undervoltage protection: Could be labeled 27-1 in ANSI terminology.
Second stage of undervoltage protection: Could be labeled 27-2 in ANSI terminology.
An overvoltage element: could be labeled 59 in ANSI terminology
First stage of overvoltage protection: Could be labeled 59-1 in ANSI terminology.
Second stage of overvoltage protection: Could be labeled 59-2 in ANSI terminology.
Zero sequence voltage: Equals one third of the measured neutral/residual voltage.
Negative sequence voltage.
A negative phase sequence (NPS) overvoltage element: could be labeled 47 in ANSI terminology.
V
V
Negative sequence polarizing voltage. V
Phase A voltage: Might be phase L1, red phase.. or other, in customer terminology.
Phase B voltage: Might be phase L2, yellow phase.. or other, in customer terminology.
Phase C voltage: Might be phase L3, blue phase.. or other, in customer terminology.
Theoretical maximum voltage produced if CT saturation did not occur
V
V
V
V
Units
V2
V2>
V2 pol
V
A
V
B
V
C
Vf
Vin
V k
VN
VN>
V n
Vn
VN>1
VN>2
VN3H>
VN3H<
Input voltage e.g. to an opto-input
Required CT knee-point voltage.
IEC knee point voltage of a current transformer.
Neutral voltage displacement, or residual voltage.
A residual (neutral) overvoltage element: could be labeled 59N in ANSI terminology.
V
V
V
V
V
The rated nominal voltage of the relay: To match the line VT input.
First stage of residual (neutral) overvoltage protection.
Second stage of residual (neutral) overvoltage protection.
A 100% stator earth (ground) fault 3rd harmonic residual (neutral) overvoltage element: could be labeled 59TN in ANSI terminology.
A 100% stator earth (ground) fault 3rd harmonic residual (neutral) undervoltage element: could be labeled 27TN in ANSI terminology.
Neutral voltage displacement, or residual voltage.
Value of stabilizing voltage
V
V
V
V
V
Vres.
Vs
V x
WI
An auxiliary supply voltage: Typically the substation battery voltage used to power the relay.
Weak Infeed logic used in teleprotection schemes.
X Reactance
X/R Primary system reactance/resistance ratio
V
None
None
V
V
V
V
V
V
Xe/Re
Xt
Primary system reactance/resistance ratio for earth loop
Transformer reactance (per unit)
Y Admittance
Z Impedance
Z<
Z0
An under impedance element: could be labeled 21 in ANSI terminology.
Zero sequence impedance.
Zone 1 distance protection.
Reach-stepped Zone 1X, for zone extension schemes used with auto-reclosure.
Negative sequence impedance.
Zone 2 distance protection.
Programmable distance zone that can be set forward or reverse looking.
None p.u. p.u. p.u.
Pxxx/EN SG/A05 Page SG-23
SG Symbols and Glossary
Zs
Symbol Description
Used to signify the source impedance behind the relay location.
Φ flux
Ψ r Remanent
Ψ s Saturation
Table 8 - Logic Symbols and Terms
Logic Symbols and Terms
Wb
Wb
Units
Wb
Page SG-24 Pxxx/EN SG/A05
Logic Timers SG Symbols and Glossary
Logic symbols
Explanation t
0 t
Delay on pick-up timer, t
Delay on drop-off timer, t t1 t2
Delay on pick-up/drop-off timer t
0 t
Pulse timer
Pulse pick-up falling edge
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT
INPUT
OUTPUT t
Pulse pick-up raising edge
INPUT
OUTPUT t1 t t t1 t t
Time chart t t t t2 t t2
Pxxx/EN SG/A05 Page SG-25
SG Symbols and Glossary
Logic symbols
Latching Latch
Explanation
INPUT
OUTPUT
Dwell
Timer
Dwell timer
INPUT
OUTPUT
INPUT
OUTPUT
Straight
Straight (non latching):
Hold value until input reset signal
Table 9 - Logic Timers
INPUT
OUTPUT
Time chart t t
Logic Timers
Page SG-26 Pxxx/EN SG/A05
Logic Gates SG Symbols and Glossary
A
B
A
B
A
B
Symbol
& Y
Symbol
1 Y
Truth Table
0
0
0
1
1
IN
1
1
1
0
1
OUT
0
0
0
0
1
A
B
Symbol
AND GATE
Truth Table
& Y
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
0
1
0
0
A
B
Symbol
& Y
Truth Table
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
0
1
1
1
A
B
Symbol
OR GATE
Truth Table
1 Y
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
1
1
0
1
A
B
Symbol
1 Y
Truth Table
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
1
1
1
0
Truth Table
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
1
0
0
0
A
B
Symbol
S
R
Q
Truth Table
Y
A B QN
0
0
1
0
0
1
0
0 -
0
1
0
1
-
0
1
Mode
Hold
Mode
Hold
Mode
Reset
Set
Hold
Mode
Inhibit
Mode
A
B
R - S FLIP-FLOP
Symbol Truth Table
S
R
Q
Symbol Truth Table
Y
A B QN
0 0
0
1
0 1
1 0
0 1
-
0
1
0
-
1
Hold
Mode
Reset
Hold
Mode
Inhibit
Mode
Set
Hold
Mode
A
B
S
RD
Q
* RD = Reset
Dominant
Y
A B QN
0 0
0 1
1 0
1 1
0
1
1
Hold
Mode
0
Set
Hold
Mode
0
A
B
Symbol
XOR
Symbol
2 Y
A
Y
Truth Table
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
0
1
1
0
A
B
EXCLUSIVE OR GATE
Symbol Truth Table
XOR Y
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
1
0
0
1
Symbol
A
B
XOR Y
Truth Table
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
0
0
0
1
A
B
MULTI INPUT GATE
Symbol Truth Table
2 Y
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
0
1
0
0
NOT GATE
A
B
Symbol
Inverter (NOT)
Y
Symbol
2
Truth Table
0
1
IN
A
OUT
Y
1
0
Y
Truth Table
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
1
0
0
1
Truth Table
A
0
0
1
1
IN
B
0
1
0
1
OUT
Y
1
1
1
0
Figure 1 - Logic Gates
Pxxx/EN SG/A05 Page SG-27
SG Symbols and Glossary
Notes:
Logic Gates
Page SG-28 Pxxx/EN SG/A05
Customer Care Centre
http://www.schneider-electric.com/CCC
Schneider Electric
35 rue Joseph Monier
92506 Rueil-Malmaison
FRANCE
Phone: +33 (0) 1 41 29 70 00
Fax: +33 (0) 1 41 29 71 00 www.schneider-electric.com Publisher: Schneider Electric
Publication: P445/EN AD/C41 Software Version: 37 & E0 Hardware Suffix: J 11/2012
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