ABB REG670 - Functionality

14.2.7.2 Functionality
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 315. 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 315: Switchyard layout ABC_BC
1MRK502052-UEN B Section 14
Control
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Technical manual