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14.4.4.3
Configuration setting
M13566-22 v5
If there are no second busbar B and therefore no QB2 disconnector, then the interlocking for
QB2 is not used. The state for QB2, QC21, BC_12 are set to open by setting the appropriate
module inputs as follows. In the functional block diagram, 0 and 1 are designated 0=FALSE and
1=TRUE:
•
QB2_OP = 1
•
QB2QB2_CL = 0
•
QC21_OP = 1
•
QC21_CL = 0
•
BC_12_CL = 0
•
VP_BC_12 = 1
If there is no second busbar B at the other side of the transformer and therefore no QB4
disconnector, then the state for QB4 is set to open by setting the appropriate module inputs
as follows:
•
QB4_OP = 1
•
QB4_CL = 0
14.4.5
Interlocking for bus-section breaker A1A2_BS
IP14154-1 v2
14.4.5.1
Application
M15110-3 v7
The interlocking for bus-section breaker (A1A2_BS) function is used for one bus-section circuit
breaker between section 1 and 2 according to figure
. The function can be used for
different busbars, which includes a bus-section circuit breaker.
QA1
WA1 (A1)
QB2
QC4
QB1
QC3
WA2 (A2)
en04000516.vsd
QC2
QC1
A1A2_BS
IEC04000516 V1 EN-US
Figure 343: Switchyard layout A1A2_BS
M15111-4 v3
The signals from other bays connected to the module A1A2_BS are described below.
14.4.5.2
Signals from all feeders
M15111-6 v4
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
1MRK 505 343-UEN B
Section 14
Control
573
Application manual
Summary of Contents for Relion 670 series
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