Table of Contents
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Emergency operation 589
Further influences 96
High-speed charge comparison 99
Inrush restraint 97, 106, 589
Interblocking 100
Measured quantity evaluation 98
Pickup 101
Pickup values 103, 104, 105
Protection data interfaces 584
Restraint 95
Self-restraint 589
Special features 39
Tolerances 96
Topology 584
Transmission of measured values 94
Tripping logic 102
Zone Z1 130
Differentialschutz
Intertrippings 588
Direct connection 76
Direct Underreach Transfer Trip 193
Direct voltage 572
Directional Blocking Scheme 257
Directional characteristic 149
Directional comparison 197
Directional Comparison Pickup 250
Directional Unblocking Scheme 253
Display Panel 467
Distance Protection 29, 592
Mutual Impedance Ratio 592
Distance protection
Distance measurement 594
Earth fault detection 592
Earth impedance ratio 49, 592
Emergency operation 595
Phase preference 592
Pickup 119, 593
Special features 40
Teleprotection schemes 597
Times 595
Zone Z1 130
Double earth faults in effectively earthed systems 134
Double earth faults in non-earthed systems 128, 134
Double faults in earthed systems 127
E
Earth Fault 295
Earth fault
Earth fault 269
Restraint 268
Sensitivity 268
Starpoint current
268
Through-fault current 268
Transformer saturation 269
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
Tripping Characteristic 269
Earth fault detection 115, 132
Earth Fault Detection in a non-earthed system 613
Earth fault differential protection
Delay times 271
Measurement principle 266
Pickup value 271
Sensitivity 271
Earth Fault Direction Determination 296
Earth Fault Location 297
Earth Fault Protection 598
Characteristics 598
Determination of Direction 602
High-current Stage 598
Inrush Restraint 601
Inverse Current Stage (ANSI) with IEC
Characteristic 600
Inverse Current Stage (IEC) with IEC
Characteristic 599
Inverse Current Stage with Logarithmic Inverse
Characteristic 600
Teleprotection Schemes 608
Earth fault protection
Direction determination 240
Overcurrent stage 599
Very high set current stage 598
Zero sequence output stage 601
Zero sequence voltage stage 601
Zero-sequence power stage 239
Earth impedance ratio 59
Earth short circuit 266
Echo Function 211
Echo function 214
Echo function (EF) 263
Electrical Tests 579
EMC Tests for Immunity (type tests) 580
EMC Tests for Interference Emission (Type Test) 581
Emergency operation 25, 302
EN100-module
Interface Selection 463
End fault protection 411
Energy Metering 485
Event buffer 468
Exchanging Interfaces 502
External Direct Local Tripping 591
F
Fast tripping zone (MHO) 170
Fast tripping zone (polygon) 152
Fault direction 147
Fault indications 460
Fault locating
Earth impedance ratio 49
Single-ended 387
Index
771
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