Signals In Breaker And A Half Arrangement; Interlocking For Double Cb Bay Db (3); Application - ABB REB670 Applications Manual

1MRK 505 337-UUS -
12.4.7.4
12.4.8
12.4.8.1
Application manual
The logic is identical to the double busbar configuration described in section "Signals in
single breaker arrangement".

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.
Section 1
(WA1)A1
(WA2)B1
A1A2_DC(BS)
B1B2_DC(BS)
BB_ES
BH_LINE
ANSI04000512 V1 EN
Figure 164: 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.

Interlocking for double CB bay DB (3)

Application

The interlocking for a double busbar double circuit breaker bay including DB_BUS_A
(3), DB_BUS_B (3) and DB_LINE (3) functions are used for a line connected to a double
busbar arrangement according to figure 165.
Section 2
A2
B2
BB_ES
BH_LINE
en04000512_ansi.vsd
Section 12
Control
371