Voltage Selection - ABB REC 561 User Manual

1MRK 580 167-XEN
Page 5 - 34
REC561
SYNCH.CHECK VOLT SELECTION
SYN1
U-Bus
U-Line
SYN2
U-Bus
U-Line
SYN3
U-Bus
U-Line
SYN4
U-Bus
U-Line

1.3 Voltage selection

Synchronism and energizing
check for double circuit breakers
and voltage selection
U5
ULX(1)
SYN1_UB1OK/FF
SYN1_VTSU
U4
ULX(1)
SYN2_UB1OK/FF
SYN2_VTSU
U5
UL2
SYN3_UB1OK/FF
SYN3_VTSU
U4
UL2
SYN4_UB1OK/FF
SYN4_VTSU
Fig. 4
The principle for the connection arrangement is shown in Fig. 4. One con-
trol terminal unit is used for the two circuit breakers in one or two bays
dependent of selected option. There is one voltage transformer at each
side of the circuit breaker, and the voltage transformer circuit connections
are straightforward, without any special voltage selection.
I/O BI AI
FUSEUB1
FUSEF1
ULX(1)
FUSEUB2
FUSEF1
FUSEUB1
FUSEF2
FUSEUB2
FUSEF2
Voltage connection in a double busbar double breaker
arrangement. Alternatively, it can be extended up to two bays
in one control terminal
ABB Network Partner AB
Bus 1
Bus 2
U-Bus 1
U5
U-Bus 2
U4
FUSEUB1
FUSEUB2
U-Line 1
FUSEF1
U-Line 2
UL2
From Bay 2
FUSEF2
Version 1.0-00
Bay 1
F1
(X80167-4)