ABB REG670 - Interlocking for Double CB Bay DB

Section 1 Section 2
A1A2_DC(BS)
B1B2_DC(BS)
BB_ESBB_ES
BH_LINE
(WA1)A1
(WA2)B1 B2
A2
en04000512.vsd
BH_LINE
IEC04000512 V1 EN
Figure 278: 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.
15.3.8 Interlocking for double CB bay DB
15.3.8.1 Application
The interlocking for a double busbar double circuit breaker bay including
DB_BUS_A, DB_BUS_B and DB_LINE functions are used for a line connected to a
double busbar arrangement according to figure 279.
1MRK 502 071-UEN - Section 15
Control
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 545
Application manual