ABB RELION REX640 Technical Manual page 20

Table of contents
14
Three-phase directional overcurrent protection DPHxPDOC.... 325
Identification......................................................................... 325
Function block...................................................................... 326
Functionality......................................................................... 326
Analog channel configuration............................................... 326
Operation principle .............................................................. 327
Measurement modes............................................................332
Directional overcurrent characteristics ................................ 332
Application............................................................................340
Signals..................................................................................342
Settings................................................................................ 343
Monitored data..................................................................... 347
Technical data...................................................................... 348
Three-phase voltage-dependent overcurrent protection
PHPVOC................................................................................... 349
Identification......................................................................... 349
Function block...................................................................... 349
Functionality......................................................................... 349
Analog channel configuration............................................... 349
Operation principle............................................................... 350
Application............................................................................355
Signals..................................................................................356
Settings................................................................................ 357
Monitored data..................................................................... 358
Technical data...................................................................... 359
Three-phase thermal protection for feeders, cables and
distribution transformers T1PTTR............................................. 359
Identification......................................................................... 359
Function block...................................................................... 359
Functionality......................................................................... 360
Analog channel configuration............................................... 360
Operation principle............................................................... 360
Application............................................................................363
Signals..................................................................................364
Settings................................................................................ 365
Monitored data..................................................................... 365
Technical data...................................................................... 366
Three-phase thermal overload protection, two time constants
T2PTTR..................................................................................... 366
Identification......................................................................... 366
Function block...................................................................... 366
Functionality......................................................................... 367
Analog channel configuration............................................... 367
Operation principle............................................................... 367
REX640
Technical Manual