Siemens siprotec 7SA6

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Index-ix7SA6 Manual

C53000-G1176-C133-1

Zero Voltage Stage with

Inverse Characteristic ................. 6-112

Zero Voltage Time Protection

(U0-Inverse) ................................ 6-105

Zone Logic of the Controlled Zone Z1B 6-68

Zone Logic of the

Independent Zones Z1 up to Z5 .... 6-66

Main Page

C53000-G1176-C1332
Table of Contents7
Introduction17
Overall Operation18
Applications21
Features23
Scope of Functions24
Hardware and Connections29
Version of 7SA6 for Panel Flush Mounting (Cubicle Mounting)30
Housing30
Screw Terminal Connections39
Connections to Plug-In Terminals43
Connections to Optical Communication Interfaces46
Connections to Electrical Communication Interfaces47
Connections to Analog Outputs48
Version of 7SA6 for Panel Surface Mounting49
Housing49
Screw Terminal Connections56
Connections to Optical Communication Interfaces57
Connections to Analog Outputs61
Version of 7SA6 with Detached Operator Panel62
Housing and Detached Operator Panel62
Screw Terminal Connections64
Connections to Plug-In Terminals70
Connections to Optical Communication Interfaces71
Connections to Electrical Communication Interfaces73
Connections to Analog Outputs74
Initial Inspections75
Unpacking and Repacking76
Inspections Upon Receipt77
Inspection of Features and Ratings77
Electrical Check77
User Interface79
Operation Using the Operator Control Panel79
Operation Using DIGSI ® 482
Storage87
General90
Protection and Control90
Communication91
Settings93
Operations93
Oscillographic Fault Records93
Operator Control Facilities94
Operator Control Panel on Device94
DIGSI ® 4 Tool96
Information Retrieval97
Annunciations98
SIPROTEC ® 4 Devices99
Measurements100
Oscillographic Fault Records102
Control103
Manual Overwrite / Tagging105
General about the Setting Procedures106
Configuration of the Scope of Device Functions109
Configuration of Inputs and Outputs (Configuration Matrix)110
Programmable Logic CFC113
Power System Data115
Setting Groups116
General Device Settings118
Time Synchronization119
Serial Interfaces120
Passwords122
Configuration125
Configuration of Functions126
Settings129
Configuration of the Binary Inputs and Outputs132
Preparation132
Structure and Operation of the Configuration Matrix133
Control Commands for Switching Devices137
Establishing Information Properties142
Performing Configuration150
Transferring Metered Values157
Settings for Contact Chatter Blocking159
Creating User Defined Functions with CFC161
Establishing a Default Display170
Draft of a Feeder Control Display174
Serial Interfaces176
Date and Time Stamping180
Functions183
General184
Power System Data 1189
Settings193
Setting Groups195
Settings197
Information Overview197
General Protection Data198
Settings204
Information Overview207
Distance Protection210
Earth Fault Recognition210
Method of Operation210
Setting of the Parameters for this Function213
Fault Detection213
Overcurrent Fault Detection213
Voltage-Dependent Current Fault Detection U/I214
Voltage and Phase-Angle Dependent Current Fault Detection U/I/J217
Applying the Function Parameter Settings218
Settings222
Information Overview223
Calculation of the Impedances223
Method of Operation223
Applying the Function Parameter Settings230
Settings233
Information Overview234
Distance Protection with Polygonal Tripping Characteristic236
Method of Operation236
Applying the Function Parameter Settings241
Settings245
Tripping Logic of the Distance Protection248
Method of Operation248
Applying the Function Parameter Settings252
Measures to be Taken in Case of Power Swings253
Method of Operation253
Applying the Function Parameter Settings255
Settings256
Information Overview256
Teleprotection Schemes with Distance Protection257
Method of Operation258
Permissive Underreach Transfer Trip with Pick-Up (PUTT)258
Permissive Underreach Transfer Trip with Zone Acceleration Z1B (PUTT)260
Direct Underreach Transfer Trip262
Permissive Overreach Transfer Trip (POTT)263
Directional Comparison Pickup266
Unblocking with Z1B268
Blocking Scheme271
Pilot Wire Comparison274
Reverse Interlocking276
Transient Blocking277
Measures for Weak and Zero Infeed277
Applying the Function Parameter Settings279
Settings282
Information Overview282
Earth Fault Protection in Earthed Systems284
Method of Operation284
Time Overcurrent Protection286
Applying the Function Parameter Settings292
Settings299
Information Overview302
Earth Fault Protection Teleprotection Schemes303
Method of Operation304
Directional Comparison Scheme304
Directional Unblocking Scheme306
Directional Blocking Scheme308
Transient Blocking310
Measures for Weak or Zero Infeed311
Applying the Function Parameter Settings313
Settings316
Information Overview316
Weak-Infeed Tripping317
Method of Operation317
Applying the Function Parameter Settings319
Settings320
Information Overview320
External Direct and Remote Tripping321
Method of Operation321
Settings322
Information Overview322
Method of Operation324
Applying the Function Parameter Settings330
Settings335
Information Overview336
High-Current Switch-On-To-Fault Protection339
Method of Operation339
Applying the Function Parameter Settings340
Settings340
Information Overview340
Method of Operation341
Earth Fault Detection in Non-Earthed Systems341
Applying the Function Parameter Settings344
Settings347
Information Overview348
Automatic Reclosure Function349
Method of Operation350
Setting the Function Parameters366
Settings373
Information Overview375
Synchronism and Voltage Check (Dead-Line / Dead-Bus Check)379
Method of Operation379
Applying the Function Parameter Settings382
Settings386
Information Overview387
Voltage Protection389
Method of Operation389
Overvoltage Protection389
Undervoltage Protection393
Settings399
Information Overview400
Fault Location403
Method of Operation403
Settings407
Information Overview407
Circuit Breaker Failure Protection409
Method of Operation409
Settings424
Information Overview425
Thermal Overload Protection426
Method of Operation426
Applying the Function Parameter Settings427
Settings429
Information Overview429
Analog Outputs430
Method of Operation430
Applying the Function Parameter Settings430
Settings433
Monitoring Functions435
Method of Operation435
Hardware Monitoring435
Software-Monitoring437
Monitoring of the External Instrument Transformer Circuits437
Trip Circuit Supervision441
Response to Failures443
Applying the Function Parameter Settings445
Settings447
Information Overview448
Function Control450
Detection of Line Energization450
Processing of the Circuit Breaker Position451
Overall Fault Detection Logic of the Device454
Overall Tripping Logic of the Device456
Circuit Breaker Trip Test462
Applying the Function Parameter Settings463
Settings463
Information Overview464
Supplementary Functions465
Processing of Messages465
Operational Measurement466
Data Storage for Fault Recording469
Applying the Function Parameter Settings469
Settings471
Information Overview472
Processing of Commands477
Types of Commands477
Steps in the Command Sequence478
Interlocking479
Interlocked/Non-Interlocked Switching479
Recording and Acknowledgement of Commands482
Control During Operation485
Read-Out of Information486
Messages486
Output of Messages486
Event Log (Operating Messages)489
Trip Log (Fault Messages)490
Earth Fault Messages493
Saving and Erasing the Messages495
General Interrogation496
Spontaneous Messages496
Switching Statistics497
Viewing the Switching Statistics497
Resetting and Setting the Switching Statistics498
Measured Values499
Energy504
Setting Set Points505
Resetting of Metered Values and Minimum/Maximum Values508
Fault Records510
Viewing Fault Records510
Saving the Fault Records512
Control of Device Functions514
Read and Set Date and Time514
Changeover of Setting Groups520
Test Messages to the System (SCADA) Interface During Test Operation522
Circuit Breaker Test Function525
Control of Switchgear529
Display Equipment Position and Control530
Manual Overwriting534
Set Status535
Interlocking536
Tagging538
Switching Authority539
Switching Mode540
Control Messages541
Other Commands542
Installation and Commissioning545
Mounting and Connections546
Installation546
Termination Variants553
Hardware Modifications557
General557
Disassembly of the Device558
Jumper Settings on Printed Circuit Boards563
Interface Modules576
Reassembly of Device579
Checking the Connections580
Data Connections580
Checking Power Plant Connections582
Commissioning584
Testing Mode and Transmission Blocking585
Checking the System (SCADA) Interface585
Checking the Binary Inputs and Outputs587
Checking Analog Outputs589
Tests for the Circuit Breaker Failure Protection589
Current, Voltage, and Phase Rotation Checks592
Directional Checks with Load Current593
Polarity Check for the Voltage Input U 4594
Earth Fault Check in a Non-Earthed System596
Polarity Check for the Current Measuring Input I 4597
Measuring the Operating Time of the Circuit Breaker601
Testing of the Teleprotection System602
Teleprotection with Distance Protection602
Teleprotection with Earth Fault Protection605
Transfer Trip Signal Transmission for Breaker Failure Protection And/Or Stub Protection607
Signal Transmission for Intertripping and Direct Transfer Tripping607
Testing User-Defined Functions608
Trip and Close Test with the Circuit Breaker608
Switching Check for the Configured Operating Devices608
Triggering Oscillographic Recordings609
Final Preparation of the Device611
Routine Checks and Maintenance613
General614
Routine Checks615
Maintenance616
Replacing the Buffer Battery616
Battery Change on Devices with Panel Flush Mounting and Cubicle Flush Mounting as Well as616
Panel Surface Mounting9-4616
Battery Change on Devices with Mounting Housing with Detached Operator Panel618
Troubleshooting621
Corrective Action / Repairs624
Software Procedures624
Hardware Procedures624
Return628
Technical Data629
General Device Data630
Analog Inputs630
Power Supply630
Binary Inputs and Outputs631
Communications Interfaces633
Electrical Tests635
Mechanical Stress Tests637
Climatic Stress Tests638
Service Conditions638
Construction639
Distance Protection640
Power Swing Supplement642
Distance Protection Teleprotection Schemes643
Earth Fault Protection in Earthed Systems644
Earth Fault Protection Teleprotection Schemes651
Weak-Infeed Tripping651
External Direct and Remote Tripping652
Overcurrent Protection653
High-Current Switch-On-To-Fault Protection656
Earth Fault Detection in a Non-Earthed System656
Automatic Reclosure Function657
Synchronism and Voltage Check (Dead-Line / Dead-Bus Check)658
Voltage Protection659
Fault Location661
Circuit Breaker Failure Protection661
Thermal Overload Protection663
Monitoring Functions665
Supplementary Functions666
Dimensions668
Appendix677
Ordering Information and Accessories678
Accessories685
A.1.1 Accessories685
General Diagrams687
Panel Flush Mounting or Cubicle Mounting687
A.2 General Diagrams687
Panel Surface Mounting695
Connection Examples710
A.3 Connection Examples710
Preset Configurations718
A.4 Preset Configurations718
Protocol Dependent Functions723
Appendix725
Settings725
B.1 Settings725
List of Information746
B.2 List of Information746
Measured Values781
B.3 Measured Values781
Index783

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