ABB Relion 670 Series Applications Manual page 11

8.14.2 Application..................................................................................................................................... 203
8.14.3 Setting guidelines.........................................................................................................................203
8.15 Capacitor bank protection CBPGAPC.........................................................................................204
8.15.1 Identification.................................................................................................................................204
8.15.2 Application.....................................................................................................................................204
8.15.2.1
8.15.3 Setting guidelines.........................................................................................................................207
8.15.3.1
8.16 Voltage-restrained time overcurrent protection VRPVOC (51V)........................................... 210
8.16.1 Identification................................................................................................................................. 210
8.16.2 Application..................................................................................................................................... 210
8.16.2.1
8.16.2.2
8.16.2.3
8.16.3 Setting guidelines......................................................................................................................... 212
8.16.3.1
8.16.3.2
8.16.3.3
Section 9 Voltage protection.......................................................................................... 215
9.1 Two step undervoltage protection UV2PTUV (27)....................................................................215
9.1.1 Identification..................................................................................................................................215
9.1.2 Application..................................................................................................................................... 215
9.1.3 Setting guidelines......................................................................................................................... 216
9.1.3.1
9.1.3.2
9.1.3.3
9.1.3.4
9.1.3.5
9.1.3.6
9.2 Two step overvoltage protection OV2PTOV (59)......................................................................218
9.2.1 Identification................................................................................................................................. 218
9.2.2 Application..................................................................................................................................... 218
9.2.3 Setting guidelines......................................................................................................................... 219
9.2.3.1
9.2.3.2
9.2.3.3
9.2.3.4
9.2.3.5
9.3 Two step residual overvoltage protection ROV2PTOV (59N)................................................. 221
9.3.1 Identification..................................................................................................................................221
Bay control REC670
Application manual
SCB protection........................................................................................................................ 206
Restrike detection................................................................................................................... 210
Base quantities.........................................................................................................................211
Application possibilities......................................................................................................... 211
Undervoltage seal-in............................................................................................................... 211
Explanation of the setting parameters............................................................................... 212
Voltage-restrained overcurrent protection for generator and step-up
transformer...............................................................................................................................213
Overcurrent protection with undervoltage seal-in...........................................................214
Equipment protection, such as for motors and generators...........................................216
Disconnected equipment detection.................................................................................... 216
Power supply quality ..............................................................................................................216
Voltage instability mitigation............................................................................................... 216
Backup protection for power system faults...................................................................... 216
Settings for two step undervoltage protection................................................................216
Equipment protection, such as for motors, generators, reactors and
transformers.............................................................................................................................219
Equipment protection, capacitors.......................................................................................219
Power supply quality...............................................................................................................219
High impedance grounded systems....................................................................................219
The following settings can be done for the two step overvoltage protection.......... 220
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