In figure 141 and figure 142 the logic shows how a closing Lock-out logic can be designed
with the Lock-out relay as an external relay alternatively with the Lock-out created
internally with the Manual closing going through the Synchro-check function. Lock-out
arranged with an external Lock-out relay.
Lock-out
RXMD1
11
12
21
MAIN ZAK CLOSE
CLOSE COMMAND
SMBO
OR
STBRREC (79)
OR
CCRBRF (50BF)
BJ-TRIP
ZCVPSOF-TRIP
INHIBIT
UNSUCCL
TRBU
ANSI10000264-1-en.vsd
SET
RESET
ELECTRICAL RESET
RELAY
ANSI10000264 V1 EN
Figure 141: Lock-out arranged with an external Lock-out relay
CLOSE COMMAND
OR
STBRREC (79)
OR
CSPBRF (50BF)
BJ-TRIP
ZCVPSOF-TRIP
INHIBIT
UNSUCCL
BJTRIP
ANSI10000265-1-en.vsd
STPPTRC (94)
SMBO
AND
RESET LOCK-OUT
OR
OR
SESRSYN (25)
SOFTWARE
OR IO RESET
AUTO STOP
MAN ENOK
MAN CLOSE
STBRREC (79) CLOSE
SETLKOUT
CLLOUT
RSTLOUT
ANSI10000265 V1 EN
Figure 142: Lock-out arranged with internal logic with manual closing going through
in IED
11.3.2.18 Automatic continuation of the reclosing sequence
The auto-reclosing function can be programmed to proceed to the following reclosing
shots (if selected) even if the start signals are not received from the protection functions,
1MRK 506 334-UUS A Section 11
Control
327
Application manual