The logic is identical to the double busbar configuration described in section “Signals in
single breaker arrangement”.
10.4.4.4
Signals in breaker and a half arrangement
The busbar grounding switch is only allowed to operate if all disconnectors of the bus-
section are open.
en04000512_ansi.vsd
Section 1
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
BB_ES
BB_ES
BH_LINE
(WA1)A1
(WA2)B1
B2
A2
BH_LINE
ANSI04000512 V1 EN
Figure 95:
Busbars divided by bus-section disconnectors (circuit breakers)
The project-specific logic are the same as for the logic for the double busbar configuration
described in section “Signals in single breaker arrangement”.
Signal
BB_DC_OP
All disconnectors on this part of the busbar are open.
VP_BB_DC
The switch status of all disconnectors on this part of the busbar is valid.
EXDU_BB
No transmission error from any bay that contains the above information.
10.4.5
Interlocking for bus-section breaker A1A2_BS (3)
10.4.5.1
Application
The interlocking for bus-section breaker (A1A2_BS ,3) function is used for one bus-
section circuit breaker between section 1 and 2 according to figure
be used for different busbars, which includes a bus-section circuit breaker.
1MRK 511 286-UUS A
Section 10
Control
233
Application manual
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