Negative sequence overcurrent protection.................................263Generator stator overload protection in accordance with IECor ANSI standards...................................................................... 266Open phase protection for transformer, lines or generatorsand circuit breaker head flashover protection for generators..... 268Voltage restrained overcurrent protection for generator andstep-up transformer.................................................................... 269Loss of excitation protection for a generator.............................. 269Section 11 Secondary system supervision..........................................273Fuse failure supervision FUFSPVC...................................................... 273Identification.................................................................................... 273Application....................................................................................... 273Setting guidelines............................................................................ 274General.......................................................................................274Setting of common parameters.................................................. 274Negative sequence based.......................................................... 275Zero sequence based.................................................................276Delta V and delta I ..................................................................... 277Dead line detection.....................................................................277Fuse failure supervision VDSPVC (60).................................................277Identification.................................................................................... 278Application....................................................................................... 278Setting guidelines............................................................................ 279Section 12 Control...............................................................................281Synchronism check, energizing check, and synchronizingSESRSYN (25)..................................................................................... 281Identification.................................................................................... 281Application....................................................................................... 281Synchronizing............................................................................. 281Synchronism check.................................................................... 282Energizing check........................................................................ 284Voltage selection........................................................................ 285External fuse failure....................................................................286Application examples.......................................................................287Single circuit breaker with single busbar.................................... 288Single circuit breaker with double busbar, external voltageselection..................................................................................... 289Single circuit breaker with double busbar, internal voltageselection..................................................................................... 290Table of contents7Application manual
