ABB RELION 620 Series Technical Manual page 18

Table of contents
12
Signals..................................................................................396
Settings................................................................................ 397
Monitored data..................................................................... 400
Technical data...................................................................... 402
Technical revision history..................................................... 403
Transient/intermittent earth-fault protection INTRPTEF............ 403
Identification......................................................................... 403
Function block...................................................................... 404
Functionality......................................................................... 404
Operation principle............................................................... 404
Application............................................................................409
Signals..................................................................................410
Settings................................................................................ 411
Monitored data..................................................................... 411
Technical data...................................................................... 412
Technical revision history..................................................... 412
Admittance-based earth-fault protection EFPADM....................412
Identification......................................................................... 412
Function block...................................................................... 413
Functionality......................................................................... 413
Operation principle............................................................... 414
Neutral admittance characteristics....................................... 427
Application............................................................................433
Signals..................................................................................438
Settings................................................................................ 439
Monitored data..................................................................... 440
Technical data...................................................................... 440
Rotor earth-fault protection MREFPTOC...................................441
Identification......................................................................... 441
Function block...................................................................... 441
Functionality......................................................................... 441
Operation principle............................................................... 441
Application............................................................................443
Signals..................................................................................446
Settings................................................................................ 446
Monitored data..................................................................... 447
Technical data...................................................................... 447
Harmonics-based earth-fault protection HAEFPTOC................447
Identification......................................................................... 447
Function block...................................................................... 448
Functionality......................................................................... 448
Operation principle............................................................... 448
Application............................................................................452
620 series
Technical Manual