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11.5.8.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Interlocking for double CB bay
DB_BUS_A
-
3
Interlocking for double CB bay
DB_BUS_B
-
3
Interlocking for double CB bay
DB_LINE
-
3
11.5.8.2
Functionality
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
.
WA1 (A)
WA2 (B)
189
189G
289G
989G
6189
989
289
489G
589G
389G
6289
DB_BUS_B
DB_LINE
DB_BUS_A
en04000518_ansi.vsd
252
152
ANSI04000518 V1 EN
Figure 209:
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.
1MRK 506 335-UUS A
Section 11
Control
443
Technical manual
Summary of Contents for REL650 series
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