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Section 12
Control
DB_BUS_A
IEC04000518 V1 EN-US
Figure 184: Switchyard layout double circuit breaker
For a double circuit-breaker bay, the modules DB_BUS_A, DB_LINE and DB_BUS_B must be
used.
12.4.8.2
Configuration setting
For application without QB9 and QC9, 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:
•
QB9_OP = 1
•
QB9_CL = 0
•
QC9_OP = 1
•
QC9_CL = 0
If, in this case, line voltage supervision is added, then rather than setting QB9 to open state,
specify the state of the voltage supervision:
•
QB9_OP = VOLT_OFF
•
QB9_CL = VOLT_ON
If there is no voltage supervision, then set the corresponding inputs as follows:
•
VOLT_OFF = 1
•
VOLT_ON = 0
12.4.9
Interlocking for 1 1/2 CB BH
328
QB1
QC1
QA1
QC2
QB61
QB9
QC9
WA1 (A)
WA2 (B)
QB2
QC4
QA2
DB_BUS_B
QC5
QB62
QC3
DB_LINE
en04000518.vsd
1MRK 505 370-UEN D
M13584-4 v4
M13584-6 v5
IP14173-1 v3
Busbar protection REB670
Application manual
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