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RELION 670 SERIES REG670
ABB RELION 670 SERIES REG670 User Manual
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RELI
ON
®
670
SER
I
E
S
—
Generat
or prot
ec
tion REG6
70
V
ersion 2.2 ANSI
Applicat
ion manual
2
Table of Contents
Default Chapter
7
Table of Contents
7
Section 1 Introduction
29
This Manual
29
Intended Audience
29
Product Documentation
30
Product Documentation Set
30
Document Revision History
31
Related Documents
32
Document Symbols and Conventions
32
Symbols
32
Document Conventions
33
IEC 61850 Edition 1 / Edition 2 Mapping
34
Section 2 Application
45
General IED Application
45
Main Protection Functions
54
Back-Up Protection Functions
55
Control and Monitoring Functions
56
Communication
61
Basic IED Functions
64
Section 3 Configuration
67
Description of REG670
67
Introduction
67
Description of Configuration A20
67
Description of Configuration B30
68
Description of Configuration C30
71
Section 4 Analog Inputs
73
Introduction
73
Setting Guidelines
73
Setting of the Phase Reference Channel
73
Example
74
Setting of Current Channels
74
Example 1
75
Example 2
75
Example 3
76
Examples on How to Connect, Configure and Set CT Inputs for most Commonly Used CT Connections
79
Example on How to Connect a Wye Connected Three-Phase CT Set to the IED
80
Example How to Connect Delta Connected Three-Phase CT Set to the IED
85
Example How to Connect Single-Phase CT to the IED
88
Relationships between Setting Parameter Base Current, CT Rated Primary Current and Minimum Pickup of a Protection IED
90
Setting of Voltage Channels
90
Example
91
Examples How to Connect, Configure and Set VT Inputs for most Commonly Used VT Connections
91
Examples on How to Connect a Three Phase-To-Ground Connected VT to the IED
92
Example on How to Connect a Phase-To-Phase Connected VT to the IED
94
Example on How to Connect an Open Delta VT to the IED for High Impedance Grounded or Ungrounded Networks
96
Example How to Connect the Open Delta VT to the IED for Low Impedance Grounded or Solidly Grounded Power Systems
99
Section 5 Local HMI
103
Display
104
Leds
107
Keypad
108
Local HMI Functionality
110
Protection and Alarm Indication
110
Parameter Management
111
Front Communication
112
Section 6 Wide Area Measurement System
113
C37.118 Phasor Measurement Data Streaming Protocol Configuration PMUCONF
113
Identification
113
Application
113
Operation Principle
113
Short Guidance for Use of TCP
114
Short Guidance for Use of UDP
115
Protocol Reporting Via IEEE 1344 and C37.118 PMUREPORT
117
Identification
117
Application
118
Operation Principle
120
Frequency Reporting
122
Reporting Filters
124
Scaling Factors for ANALOGREPORT Channels
125
PMU Report Function Blocks Connection Rules in PCM600 Application Configuration Tool (ACT)
127
Setting Guidelines
133
Section 7 Differential Protection
139
Transformer Differential Protection T2WPDIF and T3WPDIF (87T)
139
Identification
139
Application
139
Setting Guidelines
140
Restrained and Unrestrained Differential Protection
140
Elimination of Zero Sequence Currents
144
Inrush Restraint Methods
144
Overexcitation Restraint Method
144
Cross-Blocking between Phases
145
External/Internal Fault Discriminator
145
On-Line Compensation for On-Load Tap-Changer Position
147
Differential Current Alarm
148
Open CT Detection
148
Switch Onto Fault Feature
149
Setting Example
149
Introduction
149
Typical Main CT Connections for Transformer Differential Protection
150
Application Examples
151
Summary and Conclusions
159
High Impedance Differential Protection, Single Phase HZPDIF (87)
161
Identification
161
Application
162
The Basics of the High Impedance Principle
164
Connection Examples for High Impedance Differential Protection
170
Connections for Three-Phase High Impedance Differential Protection
170
Connections for 1Ph High Impedance Differential Protection HZPDIF (87)
171
Setting Guidelines
172
Configuration
173
Settings of Protection Function
173
T-Feeder Protection
173
Tertiary Reactor Protection
177
Restricted Earth Fault Protection (87N)
180
Alarm Level Operation
182
Generator Differential Protection GENPDIF (87G)
183
Application
183
Identification
183
Setting Guidelines
185
General Settings
186
Percentage Restrained Differential Operation
186
Negative Sequence Internal/External Fault Discriminator Feature
188
Open CT Detection
189
Other Additional Options
190
Low Impedance Restricted Earth Fault Protection REFPDIF (87N)
192
Application
192
Identification
192
Transformer Winding, Grounded through Zig-Zag Grounding Transformer
193
Transformer Winding, Solidly Grounded
193
Autotransformer Winding, Solidly Grounded
195
Reactor Winding, Solidly Grounded
195
Multi-Breaker Applications
196
CT Grounding Direction
197
Setting and Configuration
197
Setting Guidelines
197
Settings
198
Section 8 Impedance Protection
201
Full-Scheme Distance Measuring, Mho Characteristic ZMHPDIS (21)
201
Application
201
Configuration
201
Generator Underimpedance Protection Application
201
Setting Guidelines
201
Settings
202
High Speed Distance Protection ZMFPDIS (21)
205
Identification
205
Application
206
System Grounding
206
Fault Infeed from Remote End
209
Load Encroachment
210
Short Line Application
211
Long Transmission Line Application
212
Parallel Line Application with Mutual Coupling
213
Tapped Line Application
220
Setting Guidelines
222
General
222
Setting of Overreaching Zone
223
Setting of Zone 1
223
Setting of Reverse Zone
224
Setting of Zones for Parallel Line Application
225
Setting the Reach with Respect to Load
226
Zone Reach Setting Lower than Minimum Load Impedance
227
Zone Reach Setting Higher than Minimum Load Impedance
229
Other Settings
230
ZMMMXU Settings
233
High Speed Distance Protection for Series Compensated Lines ZMFCPDIS (21)
234
Identification
234
Application
234
System Grounding
235
Fault Infeed from Remote End
237
Load Encroachment
238
Short Line Application
239
Long Transmission Line Application
240
Parallel Line Application with Mutual Coupling
241
Tapped Line Application
248
Series Compensation in Power Systems
251
Steady State Voltage Regulation and Increase of Voltage Collapse Limit
251
Increase in Power Transfer
252
Voltage and Current Inversion
253
Impact of Series Compensation on Protective IED of Adjacent Lines
262
Distance Protection
263
Underreaching and Overreaching Schemes
264
Setting Guidelines
271
General
271
Setting of Overreaching Zone
272
Setting of Zone 1
272
Series Compensated and Adjacent Lines
273
Setting of Reverse Zone
273
Setting of Zones for Parallel Line Application
278
Setting of Reach in Resistive Direction
280
Load Impedance Limitation, Without Load Encroachment Function
281
Zone Reach Setting Higher than Minimum Load Impedance
282
Parameter Setting Guidelines
283
ZMMMXU Settings
286
Pole Slip Protection PSPPPAM (78)
286
Identification
286
Application
287
Setting Guidelines
289
Setting Example for Line Application
291
Setting Example for Generator Application
296
Out-Of-Step Protection OOSPPAM (78)
301
Identification
301
Application
301
Setting Guidelines
304
Loss of Excitation LEXPDIS(40)
308
Identification
308
Application
308
Setting Guidelines
314
Sensitive Rotor Earth Fault Protection, Injection Based ROTIPHIZ (64R)
318
Identification
318
Application
318
Rotor Earth Fault Protection Function
318
Setting Guidelines
322
Setting Injection Unit REX060
322
Connecting and Setting Voltage Inputs
323
Settings for Sensitive Rotor Earth Fault Protection,Rotiphiz (64R)
325
100% Stator Earth Fault Protection, Injection Based STTIPHIZ (64S)
326
Identification
326
Application
326
100% Stator Earth Fault Protection Function
327
Setting Guidelines
332
Setting Injection Unit REX060
332
Connecting and Setting Voltage Inputs
333
100% Stator Earth Fault Protection
335
Under Impedance Protection for Generators and Transformers ZGVPDIS
336
Identification
336
Application
337
Operating Zones
338
Zone 1 Operation
339
Zone 2 Operation
339
Zone 3 Operation
340
CT and VT Positions
341
Load Encroachment for Zone 2 and Zone 3
341
Undervoltage Seal-In Function
341
External Block Signals
342
Setting Guidelines
343
General
343
Load Encroachment
344
Under Voltage Seal-In
345
Rotor Ground Fault Protection (64R)Using CVGAPC
346
Section 9 Current Protection
347
Instantaneous Phase Overcurrent Protection PHPIOC (50)
347
Identification
347
Application
347
Setting Guidelines
348
Meshed Network Without Parallel Line
349
Meshed Network with Parallel Line
351
Directional Phase Overcurrent Protection, Four Steps OC4PTOC(51_67)
353
Identification
353
Application
353
Setting Guidelines
354
Settings for each Step
356
Setting Example
360
Instantaneous Residual Overcurrent Protection EFPIOC (50N)
365
Identification
365
Application
365
Setting Guidelines
365
Directional Residual Overcurrent Protection, Four Steps EF4PTOC (51N/67N)
368
Identification
368
Application
369
Setting Guidelines
371
Common Settings for All Steps
371
2Nd Harmonic Restrain
373
Parallel Transformer Inrush Current Logic
373
Switch Onto Fault Logic
374
Settings for each Step (X = 1, 2, 3 and 4)
375
Transformer Application Example
378
Four Step Directional Negative Phase Sequence Overcurrent Protection NS4PTOC (46I2)
383
Identification
383
Application
383
Setting Guidelines
385
Settings for each Step
385
Common Settings for All Steps
388
Sensitive Directional Residual Overcurrent and Power Protection SDEPSDE (67N)
389
Identification
390
Application
390
Setting Guidelines
392
Thermal Overload Protection, Two Time Constants TRPTTR (49)
401
Identification
401
Application
401
Setting Guideline
402
Breaker Failure Protection CCRBRF(50BF)
405
Identification
405
Application
405
Setting Guidelines
405
Pole Discrepancy Protection CCPDSC(52PD)
409
Identification
409
Application
409
Setting Guidelines
410
Directional Underpower Protection GUPPDUP (37)
410
Identification
411
Application
411
Setting Guidelines
413
Directional Overpower Protection GOPPDOP (32)
417
Identification
417
Application
417
Setting Guidelines
419
Negativ Sequence Time Overcurrent Protection for Machines NS2PTOC (46I2)
423
Identification
423
Application
424
Features
424
Generator Continuous Unbalance Current Capability
425
Setting Guidelines
427
Operate Time Characteristic
428
Alarm Function
429
Pickup Sensitivity
429
Accidental Energizing Protection for Synchronous Generator AEGPVOC (50AE)
430
Identification
430
Application
430
Setting Guidelines
430
Voltage-Restrained Time Overcurrent Protection VRPVOC (51V)
432
Identification
432
Application
432
Application Possibilities
433
Base Quantities
433
Undervoltage Seal-In
433
Setting Guidelines
434
Explanation of the Setting Parameters
434
Voltage-Restrained Overcurrent Protection for Generator and Step-Up Transformer
435
General Settings
436
Overcurrent Protection with Undervoltage Seal-In
437
Generator Stator Overload Protection GSPTTR (49S)
438
Identification
438
Application
438
Generator Rotor Overload Protection GRPTTR (49R)
438
Identification
439
Application
439
Setting Guideline
439
Section 10 Voltage Protection
443
Two Step Undervoltage Protection UV2PTUV (27)
443
Identification
443
Application
443
Setting Guidelines
444
Disconnected Equipment Detection
444
Equipment Protection, such as for Motors and Generators
444
Power Supply Quality
444
Voltage Instability Mitigation
444
Backup Protection for Power System Faults
445
Settings for Two Step Undervoltage Protection
445
Two Step Overvoltage Protection OV2PTOV (59)
446
Identification
447
Application
447
Setting Guidelines
448
Equipment Protection, Capacitors
448
Equipment Protection, such as for Motors, Generators, Reactors and Transformers
448
High Impedance Grounded Systems
449
Power Supply Quality
449
The Following Settings Can be Done for the Two Step Overvoltage Protection
449
Two Step Residual Overvoltage Protection ROV2PTOV (59N)
451
Identification
451
Application
451
Setting Guidelines
452
Equipment Protection, Capacitors
452
Equipment Protection, such as for Motors, Generators, Reactors and Transformersequipment Protection for Transformers
452
Stator Ground-Fault Protection Based on Residual Voltage Measurement
452
High Impedance Grounded Systems
456
Power Supply Quality
456
Direct Grounded System
457
Settings for Two Step Residual Overvoltage Protection
458
Overexcitation Protection OEXPVPH (24)
460
Identification
460
Application
460
Setting Guidelines
462
Recommendations for Input and Output Signals
462
Settings
463
Service Value Report
464
Setting Example
464
Voltage Differential Protection VDCPTOV (60)
466
Identification
466
Application
466
Setting Guidelines
468
100% Stator Ground Fault Protection, 3Rd Harmonic Based STEFPHIZ (59THD)
470
Identification
470
Application
470
Setting Guidelines
474
Section 11 Frequency Protection
477
Underfrequency Protection SAPTUF (81)
477
Identification
477
Application
477
Setting Guidelines
478
Overfrequency Protection SAPTOF (81)
478
Identification
479
Application
479
Setting Guidelines
479
Rate-Of-Change of Frequency Protection SAPFRC (81)
480
Identification
480
Application
480
Setting Guidelines
481
Frequency Time Accumulation Protection Function FTAQFVR (81A)
482
Identification
482
Application
482
Setting Guidelines
484
Section 12 Multipurpose Protection
487
General Current and Voltage Protection CVGAPC
487
Identification
487
Application
487
Current and Voltage Selection for CVGAPC Function
488
Application Possibilities
491
Base Quantities for CVGAPC Function
491
Inadvertent Generator Energization
492
Setting Guidelines
493
Directional Negative Sequence Overcurrent Protection
493
Negative Sequence Overcurrent Protection
495
Generator Stator Overload Protection in Accordance with IEC or ANSI Standards
498
Open Phase Protection for Transformer, Lines or Generators and Circuit Breaker Head Flashover Protection for Generators
500
Loss of Excitation Protection for a Generator
501
Voltage Restrained Overcurrent Protection for Generator and Step-Up Transformer
501
Inadvertent Generator Energization
503
General Settings of the Instance
505
Settings for OC1
505
Setting for OC2
506
Setting for UC1
506
Setting for UC2
506
Settings for OV1
506
Setting for OV2
507
Setting for UV2
507
Settings for UV1
507
Section 13 System Protection and Control
509
Multipurpose Filter SMAIHPAC
509
Identification
509
Application
509
Setting Guidelines
511
Setting Example
511
Section 14 Secondary System Supervision
515
Current Circuit Supervision (87)
515
Identification
515
Application
515
Setting Guidelines
516
Fuse Failure Supervision FUFSPVC
516
Application
516
Identification
516
General
517
Setting Guidelines
517
Negative Sequence Based
518
Setting of Common Parameters
518
Zero Sequence Based
519
Dead Line Detection
520
Delta V and Delta I
520
Fuse Failure Supervision VDSPVC (60)
521
Application
521
Identification
521
Setting Guidelines
522
Section 15 Control
525
Synchronism Check, Energizing Check, and Synchronizing
525
Sesrsyn (25)
525
Identification
525
Application
525
Synchronizing
525
Synchronism Check
527
Energizing Check
529
Voltage Selection
530
External Fuse Failure
531
Application Examples
532
Single Circuit Breaker with Single Busbar
533
Single Circuit Breaker with Double Busbar, External Voltage Selection
534
Single Circuit Breaker with Double Busbar, Internal Voltage Selection
535
Double Circuit Breaker
536
Breaker-And-A-Half
537
Setting Guidelines
540
Apparatus Control APC
545
Application
545
Bay Control QCBAY
551
Switch Controller SCSWI
552
Switches SXCBR/SXSWI
552
Proxy for Signals from Switching Device Via GOOSE XLNPROXY
553
Reservation Function (QCRSV and RESIN)
556
Interaction between Modules
558
Setting Guidelines
562
Bay Control (QCBAY)
562
Switch Controller (SCSWI)
562
Switch (SXCBR/SXSWI)
563
Proxy for Signals from Switching Device Via GOOSE XLNPROXY
564
Bay Reserve (QCRSV)
565
Reservation Input (RESIN)
565
Interlocking (3)
565
Configuration Guidelines
566
Interlocking for Line Bay ABC_LINE (3)
567
Application
567
Signals from Bypass Busbar
567
Signals from Bus-Coupler
568
Configuration Setting
572
Interlocking for Bus-Coupler Bay ABC_BC (3)
573
Application
573
Configuration
573
Signals from All Feeders
573
Signals from Bus-Coupler
576
Configuration Setting
577
Interlocking for Transformer Bay AB_TRAFO (3)
578
Application
578
Signals from Bus-Coupler
579
Configuration Setting
580
Interlocking for Bus-Section Breaker A1A2_BS (3)
581
Application
581
Signals from All Feeders
581
Configuration Setting
584
Interlocking for Bus-Section Disconnector A1A2_DC (3)
585
Application
585
Signals in Single Breaker Arrangement
585
Signals in Double-Breaker Arrangement
588
Signals in Breaker and a Half Arrangement
591
Interlocking for Busbar Grounding Switch BB_ES (3)
592
Application
592
Signals in Single Breaker Arrangement
593
Signals in Double-Breaker Arrangement
597
Signals in Breaker and a Half Arrangement
598
Interlocking for Double CB Bay DB (3)
599
Application
599
Configuration Setting
599
Interlocking for Breaker-And-A-Half Diameter BH (3)
600
Application
600
Configuration Setting
601
Voltage Control
602
Application
602
Setting Guidelines
637
TR1ATCC or TR8ATCC General Settings
637
TR1ATCC (90) or TR8ATCC (90) Setting Group
638
TCMYLTC and TCLYLTC (84) General Settings
648
Logic Rotating Switch for Function Selection and LHMI Presentation SLGAPC
649
Identification
649
Application
649
Setting Guidelines
649
Selector Mini Switch VSGAPC
650
Identification
650
Application
650
Setting Guidelines
651
Generic Communication Function for Double Point Indication DPGAPC
651
Identification
651
Application
651
Setting Guidelines
652
Single Point Generic Control 8 Signals SPC8GAPC
652
Identification
653
Application
653
Setting Guidelines
653
Automationbits, Command Function for DNP3.0 AUTOBITS
653
Identification
654
Application
654
Setting Guidelines
654
Single Command, 16 Signals SINGLECMD
654
Application
655
Setting Guidelines
656
Section 16 Logic
659
Tripping Logic SMPPTRC (94)
659
Identification
659
Application
659
Three-Pole Tripping
660
Single- And/Or Three-Pole Tripping
661
Single-, Two- or Three-Pole Tripping
662
Example of Directional Data
663
Lock-Out
663
Blocking of the Function Block
665
Setting Guidelines
665
Trip Matrix Logic TMAGAPC
665
Identification
666
Application
666
Setting Guidelines
666
Logic for Group Alarm ALMCALH
666
Application
667
Setting Guidelines
667
Logic for Group Alarm WRNCALH
667
Identification
667
Logic for Group Indication INDCALH
667
Application
668
Setting Guidelines
668
Configurable Logic Blocks
668
Configuration
669
Fixed Signal Function Block FXDSIGN
670
Identification
670
Application
670
Boolean 16 to Integer Conversion B16I
671
Identification
671
Application
672
Boolean to Integer Conversion with Logical Node Representation, 16 Bit BTIGAPC
673
Identification
673
Application
673
Integer to Boolean 16 Conversion IB16
674
Identification
674
Application
674
Integer to Boolean 16 Conversion with Logic Node Representation ITBGAPC
675
Identification
676
Application
676
Pulse Integrator TIGAPC
677
Identification
677
Application
677
Setting Guidelines
677
Elapsed Time Integrator with Limit Transgression and Overflow Supervision TEIGAPC
678
Identification
678
Application
678
Setting Guidelines
678
Comparator for Integer Inputs - INTCOMP
679
Identification
679
Application
679
Setting Guidelines
679
Setting Example
679
Comparator for Real Inputs - REALCOMP
680
Identification
680
Application
680
Setting Guidelines
680
Setting Example
681
Section 17 Monitoring
683
Measurement
683
Identification
683
Application
684
Zero Clamping
685
Setting Guidelines
686
Setting Examples
689
Gas Medium Supervision SSIMG (63)
696
Identification
696
Application
696
Setting Guidelines
697
Liquid Medium Supervision SSIML (71)
698
Identification
698
Application
698
Setting Guidelines
698
Breaker Monitoring SSCBR
699
Identification
699
Application
699
Setting Guidelines
703
Setting Procedure on the IED
703
Event Function EVENT
704
Identification
704
Application
704
Setting Guidelines
705
Disturbance Report DRPRDRE
705
Application
706
Identification
706
Setting Guidelines
707
Binary Input Signals
710
Recording Times
710
Analog Input Signals
711
Consideration
712
Sub-Function Parameters
712
Logical Signal Status Report BINSTATREP
713
Identification
713
Application
714
Setting Guidelines
714
Limit Counter L4UFCNT
714
Identification
714
Application
715
Setting Guidelines
715
Running Hour-Meter TEILGAPC
715
Identification
715
Setting Guidelines
716
Estimation of Transformer Insulation Life LOLSPTR (26/49HS)
716
Application
716
Setting Guidelines
721
Setting Example
730
Transformer Rated Data
730
Setting Parameters for Insulation Loss of Life Calculation Function (LOL1)
731
Section 18 Metering
737
Pulse-Counter Logic PCFCNT
737
Identification
737
Application
737
Setting Guidelines
737
Function for Energy Calculation and Demand Handling ETPMMTR
738
Application
738
Identification
738
Setting Guidelines
739
Section 19 Ethernet-Based Communication
741
Access Point
741
Application
741
Setting Guidelines
741
Redundant Communication
743
Identification
743
Application
743
Setting Guidelines
745
Merging Unit
746
Application
746
Setting Guidelines
747
Routes
747
Application
747
Section 20 Station Communication
749
Communication Protocols
749
IEC 61850-8-1 Communication Protocol
749
Application IEC 61850-8-1
749
Setting Guidelines
751
Horizontal Communication Via GOOSE
751
Sending Data
751
Receiving Data
752
LON Communication Protocol
754
Application
754
MULTICMDRCV and MULTICMDSND
756
Application
756
Identification
756
Setting Guidelines
756
SPA Communication Protocol
756
Setting Guidelines
758
IEC 60870-5-103 Communication Protocol
759
Application
759
Functionality
759
Design
760
Settings
762
Settings for RS485 and Optical Serial Communication
762
Settings from PCM600
763
Function and Information Types
765
DNP3 Communication Protocol
766
Application
766
Section 21 Remote Communication
767
Binary Signal Transfer
767
Identification
767
Application
767
Communication Hardware Solutions
768
Setting Guidelines
769
Section 22 Security
775
Authority Status ATHSTAT
775
Application
775
Self Supervision with Internal Event List INTERRSIG
775
Change Lock CHNGLCK
776
Application
776
Denial of Service SCHLCCH/RCHLCCH
777
Application
777
Setting Guidelines
778
Section 23 Basic IED Functions
779
IED Identifiers TERMINALID
779
Application
779
Product Information PRODINF
779
Factory Defined Settings
780
Measured Value Expander Block RANGE_XP
780
Application
781
Identification
781
Setting Guidelines
781
Parameter Setting Groups
781
Setting Guidelines
782
Rated System Frequency PRIMVAL
782
Application
782
Identification
782
Summation Block 3 Phase 3PHSUM
783
Application
783
Setting Guidelines
783
Global Base Values GBASVAL
783
Identification
783
Application
784
Setting Guidelines
784
Signal Matrix for Binary Inputs SMBI
784
Signal Matrix for Binary Outputs SMBO
785
Application
785
Setting Guidelines
785
Signal Matrix for Ma Inputs SMMI
785
Signal Matrix for Analog Inputs SMAI
785
Application
786
Frequency Values
786
Setting Guidelines
787
Test Mode Functionality TESTMODE
792
Application
792
IEC 61850 Protocol Test Mode
792
Setting Guidelines
793
Time Synchronization TIMESYNCHGEN
794
Application
794
Setting Guidelines
795
Synchronization
795
System Time
795
Section 24 Requirements
799
Current Transformer Requirements
799
Current Transformer Basic Classification and Requirements
799
Conditions
801
Fault Current
802
Secondary Wire Resistance and Additional Load
802
General Current Transformer Requirements
803
Rated Equivalent Secondary E.M.f. Requirements
803
Guide for Calculation of CT for Generator Differential Protection
804
Transformer Differential Protection
810
Breaker Failure Protection
811
Restricted Ground Fault Protection (Low Impedance Differential)
811
Current Transformer Requirements for Cts According to Other Standards
814
Current Transformers According to IEC 61869-2, Class P, PR
815
Current Transformers According to IEC 61869-2, Class PX, PXR (and Old IEC 60044-6, Class TPS and Old British Standard, Class X)
815
Current Transformers According to ANSI/IEEE
815
Voltage Transformer Requirements
816
SNTP Server Requirements
817
PTP Requirements
817
Sample Specification of Communication Requirements for the Protection and Control Terminals in Digital Telecommunication Networks
817
Section 25 Glossary
819
5
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ABB RELION 670 SERIES REG670 Specifications
General
Brand
ABB
Model
RELION 670 SERIES REG670
Category
Protection Device
Language
English
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