ABB REB670 Applications Manual page 13

Application manual
Negative sequence overcurrent protection.................................263
Generator stator overload protection in accordance with IEC
or ANSI standards...................................................................... 266
Open phase protection for transformer, lines or generators
and circuit breaker head flashover protection for generators..... 268
Voltage restrained overcurrent protection for generator and
step-up transformer.................................................................... 269
Loss of excitation protection for a generator.............................. 269
Section 11 Secondary system supervision..........................................273
Fuse failure supervision FUFSPVC...................................................... 273
Identification.................................................................................... 273
Application....................................................................................... 273
Setting guidelines............................................................................ 274
General.......................................................................................274
Setting of common parameters.................................................. 274
Negative sequence based.......................................................... 275
Zero sequence based.................................................................276
Delta V and delta I ..................................................................... 277
Dead line detection.....................................................................277
Fuse failure supervision VDSPVC (60).................................................277
Identification.................................................................................... 278
Application....................................................................................... 278
Setting guidelines............................................................................ 279
Section 12 Control...............................................................................281
Synchronism check, energizing check, and synchronizing
SESRSYN (25)..................................................................................... 281
Identification.................................................................................... 281
Application....................................................................................... 281
Synchronizing............................................................................. 281
Synchronism check.................................................................... 282
Energizing check........................................................................ 284
Voltage selection........................................................................ 285
External fuse failure....................................................................286
Application examples.......................................................................287
Single circuit breaker with single busbar.................................... 288
Single circuit breaker with double busbar, external voltage
selection..................................................................................... 289
Single circuit breaker with double busbar, internal voltage
selection..................................................................................... 290
Table of contents
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