Synchronism and energizing
check for single circuit breaker
with voltage selection
ABB Network Partner AB
1MRK 580 152-XEN
Page 5 - 19
Version 1.0-00
SYNX-VTSU Internal fuse failure detection or configured to a
binary input indicating external fuse failure of
the UL1, UL2, UL3 line-side voltage. Blocks
the energizing function.
Output signals Description
SYNX-VSUB1 Signal for indication of voltage selection from
Bus 1 voltage.
SYNX-VSUB2 Signal for indication of voltage selection from
Bus 1 voltage.
Fig. 8 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
(X80152-8)
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