15.3.3.1 Application
The interlocking for bus-coupler bay (ABC_BC) function is used for a bus-coupler
bay connected to a double busbar arrangement according to figure 246. The function
can also be used for a single busbar arrangement with transfer busbar or double busbar
arrangement without transfer busbar.
QB1 QB2
QC1
QA1
WA1 (A)
WA2 (B)
WA7 (C)
QB7QB20
QC2
en04000514.vsd
IEC04000514 V1 EN
Figure 246: Switchyard layout ABC_BC
15.3.3.2 Configuration
The signals from the other bays connected to the bus-coupler module ABC_BC are
described below.
15.3.3.3 Signals from all feeders
To derive the signals:
Signal
BBTR_OP No busbar transfer is in progress concerning this bus-coupler.
VP_BBTR The switch status is valid for all apparatuses involved in the busbar transfer.
EXDU_12 No transmission error from any bay connected to the WA1/WA2 busbars.
These signals from each line bay (ABC_LINE), each transformer bay (AB_TRAFO),
and bus-coupler bay (ABC_BC), except the own bus-coupler bay are needed:
Signal
QQB12OPTR QB1 or QB2 or both are open.
VPQB12TR The switch status of QB1 and QB2 are valid.
EXDU_12 No transmission error from the bay that contains the above information.
1MRK 502 071-UEN - Section 15
Control
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 521
Application manual
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