ABB REC670 Applications Manual page 11

Bay control REC670 2.2 IEC
Application manual
Broken conductor check BRCPTOC ............................................. 214
Identification.............................................................................. 214
Application................................................................................. 214
Setting guidelines...................................................................... 214
Capacitor bank protection CBPGAPC............................................ 215
Identification.............................................................................. 215
Application................................................................................. 215
SCB protection..................................................................... 217
Setting guidelines...................................................................... 219
Restrike detection.................................................................221
Voltage-restrained time overcurrent protection VRPVOC.............. 221
Identification.............................................................................. 221
Application................................................................................. 222
Base quantities.....................................................................222
Application possibilities........................................................ 223
Undervoltage seal-in............................................................ 223
Setting guidelines...................................................................... 224
Explanation of the setting parameters..................................224
Voltage-restrained overcurrent protection for generator
and step-up transformer....................................................... 225
Overcurrent protection with undervoltage seal-in.................225
Section 9 Voltage protection........................................................ 227
Two step undervoltage protection UV2PTUV ................................227
Identification.............................................................................. 227
Application................................................................................. 227
Setting guidelines...................................................................... 228
Equipment protection, such as for motors and generators...228
Disconnected equipment detection...................................... 228
Power supply quality ........................................................... 228
Voltage instability mitigation................................................. 228
Backup protection for power system faults...........................228
Settings for two step undervoltage protection...................... 229
Two step overvoltage protection OV2PTOV ..................................230
Identification.............................................................................. 230
Application................................................................................. 231
Setting guidelines...................................................................... 231
Equipment protection, such as for motors, generators,
reactors and transformers.................................................... 232
Equipment protection, capacitors......................................... 232
Power supply quality............................................................ 232
High impedance earthed systems........................................ 232
The following settings can be done for the two step
overvoltage protection.......................................................... 232
Table of contents
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