Hitachi Relion 670 Series Applications Manual page 269

1MRK506375-UEN Rev. N
DB_BUS_A
IEC04000518 V1 EN-US
Figure 129:
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
12.4.9.1 Application
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 130.
Railway application RER670
Application manual
QB1
QC1
QA1
QC2
QB61
QB9
QC9
Switchyard layout double circuit breaker
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WA1 (A)
WA2 (B)
QB2
QC4
QA2
DB_BUS_B
QC5
QB62
QC3
DB_LINE
en04000518.vsd
Section 12
Control
M13584-4 v4
M13584-6 v5
IP14173-1 v3
M13570-3 v6
263