ABB REL650 - Page 13

Identification.............................................................................. 259
Functionality.............................................................................. 259
Function block........................................................................... 260
Signals.......................................................................................260
Settings......................................................................................261
Monitored data...........................................................................263
Operation principle.................................................................... 263
Measurement principle......................................................... 264
Time delay............................................................................264
Blocking................................................................................270
Design.................................................................................. 271
Technical data........................................................................... 272
Two step overvoltage protection OV2PTOV ..................................273
Identification.............................................................................. 273
Functionality OV2PTOV............................................................ 273
Function block........................................................................... 274
Signals.......................................................................................274
Settings......................................................................................275
Monitored data...........................................................................277
Operation principle.................................................................... 277
Measurement principle......................................................... 278
Time delay............................................................................278
Blocking................................................................................284
Design.................................................................................. 284
Technical data........................................................................... 285
Two step residual overvoltage protection ROV2PTOV ................. 286
Identification.............................................................................. 286
Functionality.............................................................................. 286
Function block........................................................................... 287
Signals.......................................................................................287
Settings......................................................................................288
Monitored data...........................................................................289
Operation principle.................................................................... 290
Measurement principle......................................................... 290
Time delay............................................................................290
Blocking................................................................................295
Design.................................................................................. 295
Technical data........................................................................... 296
Section 9 Frequency protection....................................................299
Underfrequency protection SAPTUF ............................................. 299
Identification.............................................................................. 299
Functionality.............................................................................. 299
Function block........................................................................... 299
Table of contents
Line distance protection REL650 2.2 IEC 7
Technical manual