ABB REX 521 - Page 165

1MRS751802-MUM
REX 521
165
Protection Relay
Technical Reference Manual, Standard Configurations
Fig. 9.4.1.-2 Connection overview diagram of the outgoing feeder
REX 521
CB
DC ES
0 1
Circuit-breaker failure
protection
Blocking signal to incoming
feeder (START 3I>>)
TRIP circuit breaker
CLOSE circuit breaker
Blocking signal from
the residual voltage relay
to the Io>
Internal relay fault
External reclosure
initialization signal
Definite trip alarm
OverviewOutgB02