
Identification.................................................................................... 332
Functionality.................................................................................... 333
Function block................................................................................. 333
Signals.............................................................................................334
Settings............................................................................................334
Monitored data.................................................................................335
Operation principle.......................................................................... 336
Zero and negative sequence detection...................................... 336
Delta current and delta voltage detection................................... 337
Dead line detection.....................................................................340
Main logic................................................................................... 340
Technical data................................................................................. 344
Breaker close/trip circuit monitoring TCSSCBR................................... 344
Identification.................................................................................... 344
Functionality.................................................................................... 344
Function block................................................................................. 345
Signals.............................................................................................345
Settings............................................................................................345
Operation principle.......................................................................... 345
Technical data................................................................................. 346
Section 11 Control...............................................................................347
Synchronism check, energizing check, and synchronizing
SESRSYN (25)..................................................................................... 347
Identification.................................................................................... 347
Functionality.................................................................................... 347
Function block................................................................................. 348
Signals.............................................................................................348
Settings............................................................................................350
Monitored data.................................................................................352
Operation principle.......................................................................... 353
Basic functionality.......................................................................353
Synchronism check.................................................................... 353
Synchronizing............................................................................. 355
Energizing check........................................................................ 357
Fuse failure supervision..............................................................357
Voltage selection........................................................................ 358
Voltage selection for a single circuit breaker with double
busbars.......................................................................................358
Voltage selection for a breaker-and-a-half circuit breaker
arrangement............................................................................... 359
Table of contents
12
Technical manual