13.4.9.1 Application
M13570-3 v6
The interlocking for 1 1/2 breaker diameter (BH_CONN, BH_LINE_A, BH_LINE_B) functions are
used for lines connected to a 1 1/2 breaker diameter according to figure
149.
WA1 (A)
WA2 (B)
QB1
QC1
QA1
QC2
QC9
QB6
QB9
QB2
QC1
QA1
QC2
QC3
QB6
QC3
QB62
QB61
QA1
QC1
QC2
QC9
QB9
BH_LINE_A
BH_LINE_B
BH_CONN
en04000513.vsd
IEC04000513 V1 EN-US
Figure 149: Switchyard layout 1 1/2 breaker
M13570-7 v4
Three types of interlocking modules per diameter are defined. BH_LINE_A and BH_LINE_B are
the connections from a line to a busbar. BH_CONN is the connection between the two lines of
the diameter in the 1 1/2 breaker switchyard layout.
M13569-4 v4
For a 1 1/2 breaker arrangement, the modules BH_LINE_A, BH_CONN and BH_LINE_B must be
used.
13.4.9.2 Configuration setting
M13569-6 v5
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
Section 13 1MRK 511 358-UEN A
Control
296
Application manual
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