ABB Relion 650 Series Applications Manual page 171

1MRK 505 287-UUS B
If there is no voltage supervision, then set the corresponding inputs as follows:
• VOLT_OFF = 1
• VOLT_ON = 0
10.3.9 Interlocking for double CB bay DB (3)
10.3.9.1 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 87.
DB_BUS_A
ANSI04000518 V1 EN-US
Figure 87: Switchyard layout double circuit breaker
Three types of interlocking modules per double circuit breaker bay are defined. DB_BUS_A (3)
handles the circuit breaker QA1 that is connected to busbar WA1 and the disconnectors and
earthing switches of this section. DB_BUS_B (3) handles the circuit breaker QA2 that is connected
to busbar WA2 and the disconnectors and earthing switches of this section.
For a double circuit-breaker bay, the modules DB_BUS_A, DB_LINE and DB_BUS_B must be used.
10.3.9.2 Configuration setting
For application without 989 and 989G, just set the appropriate inputs to open state and disregard
the outputs. In the functional block diagram, 0 and 1 are designated 0=FALSE and 1=TRUE:
• 989_OP = 1
• 989_CL = 0
Busbar protection REB650
Application manual
189
189G
152
289G
6189
989
989G
© Copyright 2013 ABB. All rights reserved
WA1 (A)
WA2 (B)
289
489G
DB_BUS_B
252
589G
6289
389G
DB_LINE
en04000518_ansi.vsd
Section 10
Control
IP14167-1 v2
M13585-3 v8
M13584-4 v3
M13584-6 v4
165