10.4.10.3 Signals from bus-coupler
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)
ABC_LINE ABC_BCABC_LINE ABC_BC
(WA1)A1
(WA2)B1
(WA7)C
C
B2
A2
en04000479_ansi.vsd
ANSI04000479 V1 EN
Figure 122: Busbars divided by bus-section disconnectors (circuit breakers)
The interlocking functionality in 650 series can not handle the transfer bus
(WA7)C.
To derive the signals:
Signal
BC_12_CL A bus-coupler connection exists between busbar WA1 and WA2.
BC_17_OP No bus-coupler connection between busbar WA1 and WA7.
BC_17_CL A bus-coupler connection exists between busbar WA1and WA7.
BC_27_OP No bus-coupler connection between busbar WA2 and WA7.
BC_27_CL A bus-coupler connection exists between busbar WA2 and WA7.
VP_BC_12 The switch status of BC_12 is valid.
VP_BC_17 The switch status of BC_17 is valid.
VP_BC_27 The switch status of BC_27 is valid.
EXDU_BC No transmission error from any bus-coupler bay (BC).
These signals from each bus-coupler bay (ABC_BC) are needed:
1MRK 511 286-UUS A Section 10
Control
257
Application manual
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