ABB Relion 670 Series Applications Manual page 330

Section 12
Control
189
152
ANSI04000514 V1 EN-US
Figure 154: Switchyard layout ABC_BC (3)
12.4.3.2 Configuration
The signals from the other bays connected to the bus-coupler module ABC_BC are described below.
12.4.3.3 Signals from all feeders
To derive the signals:
Signal
BBTR_OP
VP_BBTR
EXDU_12
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
Q1289OPTR
VP1289TR
EXDU_12
For bus-coupler bay n, these conditions are valid:
324
2089
789
289
189G
289G
en04000514_ansi.vsd
No busbar transfer is in progress concerning this bus-coupler.
The switch status is valid for all apparatuses involved in the busbar transfer.
No transmission error from any bay connected to the WA1/WA2 busbars.
189 or 289 or both are open.
The switch status of 189 and 289 are valid.
No transmission error from the bay that contains the above information.
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WA1 (A)
WA2 (B)
WA7 (C)
1MRK 505 370-UUS Rev. K
M13553-138 v4
M13553-6 v4
Busbar protection REB670
Application manual