QB7OPTR (bay 1)
QB7OPTR (bay 2)
. . .
. . .
QB7OPTR (bay n-1)
&
BB7_D_OP
VPQB7TR (bay 1)
VPQB7TR (bay 2)
. . .
. . .
VPQB7TR (bay n-1)
&
VP_BB7_D
EXDU_BPB (bay 1)
EXDU_BPB (bay 2)
. . .
. . .
EXDU_BPB (bay n-1)
&
EXDU_BPB
en04000477.vsd
IEC04000477 V1 EN-US
Figure 332: Signals from bypass busbar in line bay n
14.4.2.3
Signals from bus-coupler
M13560-31 v4
If the busbar is divided by bus-section disconnectors into bus sections, the busbar-busbar
connection could exist via the bus-section disconnector and bus-coupler within the other bus
section.
Section 1
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
ABC_LINE
ABC_BC
ABC_LINE
ABC_BC
(WA1)A1
(WA2)B1
(WA7)C
C
B2
A2
en04000479.vsd
IEC04000479 V1 EN-US
Figure 333: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
BC_12_CL
A bus-coupler connection exists between busbar WA1 and WA2.
BC_17_OP
No bus-coupler connection between busbar WA1 and WA7.
BC_17_CL
A bus-coupler connection exists between busbar WA1and WA7.
BC_27_OP
No bus-coupler connection between busbar WA2 and WA7.
BC_27_CL
A bus-coupler connection exists between busbar WA2 and WA7.
VP_BC_12
The switch status of BC_12 is valid.
VP_BC_17
The switch status of BC_17 is valid.
VP_BC_27
The switch status of BC_27 is valid.
EXDU_BC
No transmission error from any bus-coupler bay (BC).
These signals from each bus-coupler bay (ABC_BC) are needed:
1MRK 505 343-UEN B
Section 14
Control
563
Application manual
Summary of Contents for Relion 670 series
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