Voltage Selection For A Single Busbar - ABB REC 561 User Manual

ABB Network Partner AB
Version 1.0-00
REC561
SYNCH.CHECK VOLT SELECTION
SYN1
U-Bus
U-Line
SYN2
U-Bus
U-Line
SYN3
U-Bus
U-Line
1.3.1 Voltage selection for
a single busbar
Synchronism and energizing
check for single circuit breaker
with voltage selection
U5
ULX(1)
SYN1_UB1OK/FF
SYN1_VTSU
U5
UL2
SYN2_UB1OK/FF
SYN2_VTSU
U5
UL3
SYN3_UB1OK/FF
SYN3_VTSU
Fig. 4
Single bus is selected on the MMI. Fig. 4 shows the principle for the con-
nection arrangement.
can alternatively be common for three bays. For the synchronism check
(SYNX) and energizing check function , there is one voltage transformer
at each side of the circuit breaker. The voltage transformer circuit connec-
tions are straightforward, no special voltage selection is needed.
For the synchronism-check and energizing check, the voltage from Bus 1
(SYNX-U-Bus) is connected to the single phase analogue input (U5) on
the control terminal unit.
I/O BI AI
ULX(1)
FUSEUB1
FUSEF1
FUSEUB1
FUSEF2
FUSEUB1
FUSEF3
Voltage connection in a single busbar arrangement. Alterna-
tively, it can be extended up to three bays in one control termi-
nal
One control terminal unit is used for each bay, or it
1MRK 580 152-XEN
Bus 1
U-Bus 1
U5
U-Line 1
FUSEUB1
FUSEF1
U-Line 2
UL2
From Bay 2
FUSEF2
U-Line 3
UL3
From Bay 3
FUSEF3
Page 5 - 13
Bay 1
F1
(X80152-4)