Interlocking For Bus-Section Breaker A1A2_Bs (3); Application; Signals From All Feeders - ABB Relion 670 Series Applications Manual

1MRK 511 358-UUS A
13.4.5

Interlocking for bus-section breaker A1A2_BS (3)

13.4.5.1

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 136. The function can be used for different
busbars, which includes a bus-section circuit breaker.
ANSI04000516 V1 EN-US
Figure 136: Switchyard layout A1A2_BS (3)
The signals from other bays connected to the module A1A2_BS are described below.
13.4.5.2

Signals from all feeders

If the busbar is divided by bus-section circuit breakers into bus-sections and both circuit breakers
are closed, the opening of the circuit breaker must be blocked if a bus-coupler connection exists
between busbars on one bus-section side and if on the other bus-section side a busbar transfer is
in progress:
(WA1)A1
(WA2)B1
(WA7)C
ABC_LINE
ANSI04000489 V1 EN-US
Figure 137: Busbars divided by bus-section circuit breakers
To derive the signals:
Application manual
WA1 (A1)
189
189G
152
389G
A1A2_BS
Section 1
A1A2_BS
B1B2_BS
ABC_BC
AB_TRAFO
WA2 (A2)
289 289G
489G
en04000516_ansi.vsd
Section 2
ABC_BC
ABC_LINE AB_TRAFO
en04000489_ansi.vsd
A2
B2
C
Section 13
Control
IP14154-1 v2
M15110-3 v7
M15111-4 v3
M15111-6 v4
315