12.2.2.2 Functionality
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 129. 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
QC2QC1
A1A2_BS
IEC04000516 V1 EN
Figure 129: Switchyard layout A1A2_BS
12.2.2.3 Function block
A1A2_BS
QA1_OP
QA1_CL
QB1_OP
QB1_CL
QB2_OP
QB2_CL
QC3_OP
QC3_CL
QC4_OP
QC4_CL
S1QC1_OP
S1QC1_CL
S2QC2_OP
S2QC2_CL
BBTR_OP
VP_BBTR
EXDU_12
EXDU_ES
QA1O_EX1
QA1O_EX2
QA1O_EX3
QB1_EX1
QB1_EX2
QB2_EX1
QB2_EX2
QA1OPREL
QA1OPITL
QA1CLREL
QA1CLITL
QB1REL
QB1ITL
QB2REL
QB2ITL
QC3REL
QC3ITL
QC4REL
QC4ITL
S1S2OPTR
S1S2CLTR
QB1OPTR
QB1CLTR
QB2OPTR
QB2CLTR
VPS1S2TR
VPQB1TR
VPQB2TR
IEC09000066_1_en.vsd
IEC09000066 V1 EN
Figure 130: A1A2_BS function block
Section 12 1MRK 504 135-UEN A
Control
276
Technical manual
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