ABB REL650 Technical Manual page 12

Table of contents
6
Functionality.............................................................................. 231
Function block........................................................................... 231
Signals.......................................................................................231
Settings......................................................................................233
Monitored data...........................................................................234
Operation principle.................................................................... 235
Technical data........................................................................... 238
Breaker failure protection CCRBRF............................................... 238
Identification.............................................................................. 238
Functionality.............................................................................. 238
Function block........................................................................... 239
Signals.......................................................................................239
Settings......................................................................................240
Monitored data...........................................................................241
Operation principle.................................................................... 241
Technical data........................................................................... 244
Pole discordance protection CCPDSC........................................... 245
Identification.............................................................................. 245
Functionality.............................................................................. 245
Function block........................................................................... 246
Signals.......................................................................................246
Settings......................................................................................247
Monitored data...........................................................................247
Operation principle.................................................................... 247
Pole discordance signaling from circuit breaker...................250
Unsymmetrical current detection..........................................250
Technical data........................................................................... 251
Voltage-restrained time overcurrent protection VRPVOC.............. 251
Identification.............................................................................. 251
Functionality.............................................................................. 251
Function block........................................................................... 251
Signals.......................................................................................252
Settings......................................................................................252
Monitored data...........................................................................253
Operation principle.................................................................... 254
Measured quantities............................................................. 254
Base quantities.....................................................................254
Overcurrent protection..........................................................254
Logic diagram.......................................................................256
Undervoltage protection....................................................... 256
Technical data........................................................................... 257
Section 8 Voltage protection........................................................ 259
Two step undervoltage protection UV2PTUV ................................259
Line distance protection REL650 2.2 IEC
Technical manual