Identification.................................................................................... 218Functionality.................................................................................... 218Function block................................................................................. 219Signals.............................................................................................219Settings............................................................................................219Operation principle.......................................................................... 219Technical data................................................................................. 220Section 10 Control...............................................................................221Synchronism check, energizing check, and synchronizingSESRSYN (25)..................................................................................... 221Identification.................................................................................... 221Functionality.................................................................................... 221Function block................................................................................. 222Signals.............................................................................................222Settings............................................................................................224Monitored data.................................................................................226Operation principle.......................................................................... 227Basic functionality.......................................................................227Synchronism check.................................................................... 227Synchronizing............................................................................. 229Energizing check........................................................................ 231Fuse failure supervision..............................................................231Voltage selection........................................................................ 232Voltage selection for a single circuit breaker with doublebusbars.......................................................................................232Voltage selection for a breaker-and-a-half circuit breakerarrangement............................................................................... 233Technical data................................................................................. 237Autorecloser for 3-phase operation SMBRREC (79)............................ 237Identification.................................................................................... 238Functionality.................................................................................... 238Function block................................................................................. 238Signals.............................................................................................239Settings............................................................................................240Operation principle.......................................................................... 241Initiate auto-reclosing and conditions for initiation of areclosing cycle............................................................................ 241Control of the auto-reclosing open time......................................243Long trip signal........................................................................... 243Technical data................................................................................. 248Table of contents9Technical manual