ABB RED650 - Page 13

Voltage dependent time delay..............................................270
Blocking................................................................................271
Design.................................................................................. 271
Technical data........................................................................... 272
Overfrequency protection SAPTOF ...............................................273
Identification.............................................................................. 273
Functionality.............................................................................. 273
Function block........................................................................... 274
Signals.......................................................................................274
Settings......................................................................................274
Operation principle.................................................................... 275
Measurement principle......................................................... 275
Time delay............................................................................275
Blocking................................................................................276
Design.................................................................................. 276
Technical data........................................................................... 277
Rate-of-change of frequency protection SAPFRC .........................277
Identification.............................................................................. 277
Functionality.............................................................................. 277
Function block........................................................................... 278
Signals.......................................................................................278
Settings......................................................................................278
Operation principle.................................................................... 279
Measurement principle......................................................... 279
Time delay............................................................................279
Blocking................................................................................280
Design.................................................................................. 280
Technical data........................................................................... 281
Section 11 Secondary system supervision.....................................283
Current circuit supervision CCSSPVC............................................283
Identification.............................................................................. 283
Functionality.............................................................................. 283
Function block........................................................................... 283
Signals.......................................................................................284
Settings......................................................................................284
Operation principle.................................................................... 284
Technical data........................................................................... 286
Fuse failure supervision FUFSPVC................................................286
Identification.............................................................................. 286
Functionality.............................................................................. 287
Function block........................................................................... 287
Signals.......................................................................................288
Settings......................................................................................289
Table of contents
Line differential protection RED650 2.2 IEC 7
Technical manual