ABB REC 561 User Manual page 427

1MRK 580 151-XEN
Page 6 - 142
4.2.8.3 Signals in breaker
and a half arrange-
ment
Interlocking
These signals from each double-breaker bay (DB_BUS) are needed:
Q1OPTR
Signal if Q1 is open.
Q2OPTR
Signal if Q2 is open.
VPQ1TR
The switch status of Q1 is valid.
VPQ2TR
The switch status of Q2 is valid.
EXDUP_DB
Signal if there is no transmission error from the bay that contains the
above information. This signal is taken from the data valid output on the
command function block.
These signals from each bus-section disconnector bay (A1A2_DC) are
also needed. For B1B2_DC, corresponding signals from busbar B are
used. The same type of module (A1A2_DC) is used for different busbars,
that is, for both bus-section disconnectors A1A2_DC and B1B2_DC.
DCOPTR
Signal if the bus-section disconnector is open.
VPDCTR
The switch status of A1A2_DC is valid.
EXDUP_DC
Signal if there is no transmission error from the bay that contains the
above information. This signal is taken from the data valid output on the
command function block.
The logic is identical to the double busbar configuration described in
"Signals in single breaker arrangement" on page 36.
The busbar earthing switch is only allowed to operate if all disconnectors
of the bus section are open.
Section 1
A1
B1
BB_ES
Fig. 41 Busbars divided by bus-section disconnectors (circuit break-
ers)
ABB Network Partner AB
A1A2_DC(BS)
B1B2_DC(BS)
BH_LINE
BH_LINE
Version 1.0-00
Section 2
A2
B2
BB_ES
(X80151-41)