QB1 QB2
QC1
QA1
QC2
WA1 (A)
WA2 (B)
QA2
QC3
T
QC4
QB4QB3
QA2 and QC4 are not
used in this interlocking
AB_TRAFO
en04000515.vsd
IEC04000515 V1 EN-US
Figure 121: Switchyard layout AB_TRAFO
M13566-4 v4
The signals from other bays connected to the module AB_TRAFO are described below.
13.4.4.2 Signals from bus-coupler
M13566-6 v4
If the busbar is divided by bus-section disconnectors into bus-sections, the busbar-busbar
connection could exist via the bus-section disconnector and bus-coupler within the other bus-
section.
Section 1 Section 2
A1A2_DC(BS)
B1B2_DC(BS)
AB_TRAFO ABC_BCAB_TRAFO ABC_BC
(WA1)A1
(WA2)B1
(WA7)C C
B2
A2
en04000487.vsd
IEC04000487 V1 EN-US
Figure 122: Busbars divided by bus-section disconnectors (circuit breakers)
The project-specific logic for input signals concerning bus-coupler are the same as the specific
logic for the line bay (ABC_LINE):
Signal
BC_12_CL A bus-coupler connection exists between busbar WA1 and WA2.
VP_BC_12 The switch status of BC_12 is valid.
EXDU_BC No transmission error from bus-coupler bay (BC).
The logic is identical to the double busbar configuration “Signals from bus-coupler“.
Section 13 1MRK 511 358-UEN A
Control
278
Application manual
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