1MRS751802-MUM
REX 521
197
Protection Relay
Technical Reference Manual, Standard Configurations
Fig. 10.3.6.3.-1 Connection diagram for the standard configuration M02 with breaker status indication, control
and alarm signals.
CB
REX 521
DC
ES
0
1
CBstatusL
Circuit-breaker failure
protection
Blocking signal to the incoming feeder
(START 3I>>)
TRIP circuit breaker
CLOSE circuit breaker
External reclosure
initialization signal
Definite trip alarm
Control signal for selecting
the basic angle of Io>-->
(BACTRL)
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