ABB REB670 Series Applications Manual page 312

Section 12
Control
QB1
QA1
IEC04000514 V1 EN-US
Figure 151: Switchyard layout ABC_BC
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
QQB12OPTR
VPQB12TR
EXDU_12
For bus-coupler bay n, these conditions are valid:
306
QB2 QB20 QB7
QC1
QC2
en04000514.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.
QB1 or QB2 or both are open.
The switch status of QB1 and QB2 are valid.
No transmission error from the bay that contains the above information.
WA1 (A)
WA2 (B)
WA7 (C)
1MRK 505 370-UEN D
M13553-138 v4
M13553-6 v4
Busbar protection REB670
Application manual