Synchronism and energizing
check for double circuit breakers
and voltage selection
ABB Network Partner AB
1MRK 580 167-XEN
Page 5 - 37
Version 1.0-00
Output signals Description
SYNX-AUTOOK Synchro-check/energizing OK. The output sig-
nal is high when the synchro-check conditions
set on the MMI are fulfilled. It can also include
the energizing condition, if selected. The signal
can be used to release the auto-recloser before
closing attempt of the circuit breaker. It can also
be used as a free signal.
SYNX-MANOK Same as above but with alternative settings of
the direction for energizing to be used during
manual closing of the circuit breaker.
Fig. 6 Block diagram - Synchro-check
t
&
1
V
UDiff
OPERATION
OFF
RELEASE
ON
SYN1-BLOCK
UBusHigh
ULineHigh
FreqDiff
PhaseDiff
AUTOENERG1
MANENERG1
50ms
&
&
&
1
V
SYN1
From energizing
check (fig.9)
SYN1-AUTOOK
SYN1-MANOK
(X80167-6)