Identification.................................................................................... 218
Functionality.................................................................................... 218
Function block................................................................................. 219
Signals.............................................................................................219
Settings............................................................................................219
Operation principle.......................................................................... 219
Technical data................................................................................. 220
Section 10 Control...............................................................................221
Synchronism check, energizing check, and synchronizing
SESRSYN (25)..................................................................................... 221
Identification.................................................................................... 221
Functionality.................................................................................... 221
Function block................................................................................. 222
Signals.............................................................................................222
Settings............................................................................................224
Monitored data.................................................................................226
Operation principle.......................................................................... 227
Basic functionality.......................................................................227
Synchronism check.................................................................... 227
Synchronizing............................................................................. 229
Energizing check........................................................................ 231
Fuse failure supervision..............................................................231
Voltage selection........................................................................ 232
Voltage selection for a single circuit breaker with double
busbars.......................................................................................232
Voltage selection for a breaker-and-a-half circuit breaker
arrangement............................................................................... 233
Technical data................................................................................. 237
Autorecloser for 3-phase operation SMBRREC (79)............................ 237
Identification.................................................................................... 238
Functionality.................................................................................... 238
Function block................................................................................. 238
Signals.............................................................................................239
Settings............................................................................................240
Operation principle.......................................................................... 241
Initiate auto-reclosing and conditions for initiation of a
reclosing cycle............................................................................ 241
Control of the auto-reclosing open time......................................243
Long trip signal........................................................................... 243
Technical data................................................................................. 248
Table of contents
9
Technical manual
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