ABB RELION 650 Series Applications Manual page 11

9.1.3.3 Power supply quality .............................................................................................................182
9.1.3.4 Voltage instability mitigation.............................................................................................. 182
9.1.3.5 Backup protection for power system faults..................................................................... 182
9.1.3.6 Settings for Two step undervoltage protection.............................................................. 182
Section 10 Multipurpose protection............................................................................... 185
10.1 General current and voltage protection CVGAPC....................................................................185
10.1.1 Identification.............................................................................................................................. 185
10.1.2 Application.................................................................................................................................. 185
10.1.2.1 Current and voltage selection for CVGAPC function...................................................... 186
10.1.2.2 Base quantities for CVGAPC function................................................................................ 188
10.1.2.3 Application possibilities....................................................................................................... 188
10.1.2.4 Inadvertent generator energization...................................................................................189
10.1.3 Setting guidelines..................................................................................................................... 190
10.1.3.1 Directional negative sequence overcurrent protection................................................. 190
10.1.3.2 Negative sequence overcurrent protection...................................................................... 191
10.1.3.3 Generator stator overload protection in accordance with IEC or ANSI standards...193
10.1.3.4 Open phase protection for transformer, lines or generators and circuit
breaker head flashover protection for generators..........................................................195
10.1.3.5 Voltage restrained overcurrent protection for generator and step-up
transformer............................................................................................................................. 196
10.1.3.6 Loss of excitation protection for a generator..................................................................196
Section 11 Secondary system supervision..................................................................... 199
11.1 Current circuit supervision CCSSPVC........................................................................................ 199
11.1.1 Identification.............................................................................................................................. 199
11.1.2 Application..................................................................................................................................199
11.1.3 Setting guidelines..................................................................................................................... 199
11.2 Fuse failure supervision FUFSPVC............................................................................................. 200
11.2.1 Identification............................................................................................................................. 200
11.2.2 Application................................................................................................................................. 200
11.2.3 Setting guidelines......................................................................................................................201
11.2.3.1 General......................................................................................................................................201
11.2.3.2 Setting of common parameters..........................................................................................201
11.2.3.3 Negative sequence based.....................................................................................................201
11.2.3.4 Zero sequence based............................................................................................................ 202
11.2.3.5 Delta U and delta I .................................................................................................................203
11.2.3.6 Dead line detection................................................................................................................203
Section 12 Control............................................................................................................. 205
12.1 Synchrocheck, energizing check, and synchronizing SESRSYN............................................205
12.1.1 Identification..............................................................................................................................205
12.1.2 Application..................................................................................................................................205
12.1.2.1 Synchronizing......................................................................................................................... 205
12.1.2.2 Synchrocheck..........................................................................................................................206
12.1.2.3 Energizing check.................................................................................................................... 208
12.1.2.4 Voltage selection................................................................................................................... 208
Application manual
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