Multipurpose protection...............................................................63
General current and voltage protection (PGPF).....................63
Secondary circuit supervision......................................................64
Current circuit supervision (RDIF)..........................................64
Fuse failure supervision (RFUF)............................................64
Control.........................................................................................64
Synchrocheck and energizing check (RSYN, 25)........................64
Apparatus control (APC)..............................................................65
Interlocking.............................................................................65
Interlock busbar earth switch..................................................65
Interlock bus section breaker.................................................65
Interlock bus section disconnect............................................65
Interlock bus coupler bay.......................................................65
Interlock, one and a half circuit breaker connection...............65
Interlock, one and a half circuit breaker line A.......................66
Interlock one and a half circuit breaker line B........................66
Interlock, double circuit breaker bus A...................................66
Interlock, double circuit breaker bus B...................................66
Interlock, double circuit breaker line.......................................66
Interlock line bay....................................................................66
Interlock, transformer bay.......................................................67
Switch controller.....................................................................67
Circuit breaker........................................................................67
Circuit switch (SXSWI)...........................................................67
Bay reserve............................................................................67
Reservation input (RESIN).....................................................68
Bay control (QCBAY).............................................................68
Commands..................................................................................68
Single command.....................................................................68
IEC60870–5–103....................................................................68
Logic............................................................................................69
Tripping logic (PTRC, 94).......................................................69
Event counter.........................................................................69
Trip matrix logic (GGIO, 94X).................................................69
Logic gate...............................................................................69
Logic pulse timer....................................................................69
Logic SR memory...................................................................69
Logic timer set........................................................................70
Monitoring....................................................................................70
Disturbance report (RDRE)....................................................70
Generic measured value (GGIO)...........................................70
Measured value expander block............................................70
LEDs.......................................................................................71
Table of contents
RET 670
Operator's manual
1MRK504049-UEN rev. D
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