ABB RELION 670 SERIES REG670 - Signals from Bus-Coupler

These signals from each line bay (ABC_LINE, 3) except that of the own bay are
needed:
Signal
789OPTR 789 is open
VP789TR The switch status for 789 is valid.
EXDU_BPB No transmission error from the bay that contains the above information.
For bay n, these conditions are valid:
AND
BB7_D_OP
VP_BB7_D
EXDU_BPB
en04000477_ansi.vsd
AND
AND
789OPTR (bay 1)
789OPTR (bay 2)
. . .
. . .
789OPTR (bay n-1)
VP789TR (bay 1)
VP789TR (bay 2)
. . .
. . .
VP789TR (bay n-1)
EXDU_BPB (bay 1)
EXDU_BPB (bay 2)
. . .
. . .
EXDU_BPB (bay n-1)
ANSI04000477 V1 EN-US
Figure 243: Signals from bypass busbar in line bay n
15.3.2.3 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 15 1MRK 502 071-UUS A
Control
562 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Application manual