ABB RELION 670 Series Technical Manual page 785

1MRK 502 066-UUS B
14.2.7.2 Functionality
The interlocking for bus-coupler bay (ABC_BC, 3) function is used for a bus-coupler bay connected
to a double busbar arrangement according to figure 417. The function can also be used for a single
busbar arrangement with transfer busbar or double busbar arrangement without transfer busbar.
189
152
ANSI04000514 V1 EN-US
Figure 417: Switchyard layout ABC_BC (3)
Technical manual
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789
289
189G
289G
en04000514_ansi.vsd
WA1 (A)
WA2 (B)
WA7 (C)
Section 14
Control
M13555-3 v8
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