ABB Relion 650 Series Applications Manual page 161

1MRK 505 287-UUS B
(WA1)A1
(WA2)B1
ANSI04000498 V1 EN-US
Figure 74: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
S1DC_OP
S2DC_OP
VPS1_DC
VPS2_DC
EXDU_BB
These signals from each double-breaker bay (DB_BUS) are needed:
Signal
189OPTR
289OPTR
VP189TR
VP289TR
EXDU_DB
The logic is identical to the double busbar configuration "Signals in single breaker arrangement".
For a bus-section disconnector, these conditions from the A1 busbar section are valid:
Busbar protection REB650
Application manual
Section 1
A1A2_DC(BS)
B1B2_DC(BS)
DB_BUS DB_BUS
All disconnectors on bus-section 1 are open.
All disconnectors on bus-section 2 are open.
The switch status of all disconnectors on bus-section 1 is valid.
The switch status of all disconnectors on bus-section 2 is valid.
No transmission error from double-breaker bay (DB) that contains the above
information.
189 is open.
289 is open.
The switch status of 189 is valid.
The switch status of 289 is valid.
No transmission error from the bay that contains the above information.
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Section 2
A2
B2
DB_BUS DB_BUS
en04000498_ansi.vsd
Section 10
Control
155