ABB Relion 670 Series Applications Manual page 310

Section 13
Control
(WA1)A1
(WA2)B1
(WA7)C
ANSI04000479 V1 EN-US
Figure 126: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
BC_12_CL
BC_17_OP
BC_17_CL
BC_27_OP
BC_27_CL
VP_BC_12
VP_BC_17
VP_BC_27
EXDU_BC
These signals from each bus-coupler bay (ABC_BC) are needed:
Signal
BC12CLTR
BC17OPTR
BC17CLTR
BC27OPTR
BC27CLTR
VPBC12TR
VPBC17TR
VPBC27TR
EXDU_BC
304
Section 1
ABC_LINE ABC_BC
A bus-coupler connection exists between busbar WA1 and WA2.
No bus-coupler connection between busbar WA1 and WA7.
A bus-coupler connection exists between busbar WA1and WA7.
No bus-coupler connection between busbar WA2 and WA7.
A bus-coupler connection exists between busbar WA2 and WA7.
The switch status of BC_12 is valid.
The switch status of BC_17 is valid.
The switch status of BC_27 is valid.
No transmission error from any bus-coupler bay (BC).
A bus-coupler connection through the own bus-coupler exists between busbar
WA1 and WA2.
No bus-coupler connection through the own bus-coupler between busbar WA1
and WA7.
A bus-coupler connection through the own bus-coupler exists between busbar
WA1 and WA7.
No bus-coupler connection through the own bus-coupler between busbar WA2
and WA7.
A bus-coupler connection through the own bus-coupler exists between busbar
WA2 and WA7.
The switch status of BC_12 is valid.
The switch status of BC_17 is valid.
The switch status of BC_27 is valid.
No transmission error from the bay that contains the above information.
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
ABC_LINE
1MRK 511 358-UUS A
A2
B2
C
ABC_BC
en04000479_ansi.vsd
Application manual