ABB REG670 - Page 11

Filtering.................................................................................237
Distance measuring zones................................................... 238
Phase-selection element...................................................... 239
Directional element...............................................................240
Fuse failure...........................................................................241
Power swings....................................................................... 241
Measuring principles............................................................ 241
Simplified logic schemes...................................................... 244
Technical data........................................................................... 251
Pole slip protection PSPPPAM ......................................................251
Identification.............................................................................. 251
Functionality.............................................................................. 251
Function block........................................................................... 253
Signals.......................................................................................253
Settings......................................................................................254
Monitored data...........................................................................255
Operation principle.................................................................... 255
Technical data........................................................................... 259
Out-of-step protection OOSPPAM..................................................259
Identification.............................................................................. 259
Functionality.............................................................................. 259
Function block........................................................................... 260
Signals.......................................................................................260
Settings......................................................................................261
Monitored data...........................................................................262
Operation principle.................................................................... 262
Lens characteristic............................................................... 265
Detecting an out-of-step condition........................................267
Maximum slip frequency.......................................................268
Taking care of the circuit breaker ........................................ 269
Design.................................................................................. 271
Technical data........................................................................... 272
Loss of excitation LEXPDIS............................................................272
Identification.............................................................................. 272
Functionality.............................................................................. 272
Function block........................................................................... 273
Signals.......................................................................................273
Settings......................................................................................274
Monitored data...........................................................................275
Operation principle.................................................................... 275
Technical data........................................................................... 279
Sensitive rotor earth fault protection, injection based ROTIPHIZ .. 279
Identification.............................................................................. 279
Table of contents
5
Technical manual