ABB Relion 670 Series Applications Manual page 342

Section 12
Control
Signal
189OPTR
289OPTR
22089OTR
VP189TR
VP289TR
V22089TR
EXDU_BB
If there is an additional bus-section disconnector, the signal from the bus-section disconnector bay
(A1A2_DC) must be used:
Signal
DCOPTR
VPDCTR
EXDU_DC
If there is an additional bus-section circuit breaker rather than an additional bus-section disconnector the
signals from the bus-section, circuit-breaker bay (A1A2_BS) rather than the bus-section disconnector bay
(A1A2_DC) must be used:
Signal
189OPTR
289OPTR
VP189TR
VP289TR
EXDU_BS
For a bus-section disconnector, these conditions from the A1 busbar section are valid:
189OPTR (bay 1/sect.A1)
189OPTR (bay n/sect.A1)
VP189TR (bay 1/sect.A1)
VP189TR (bay n/sect.A1)
EXDU_BB (bay 1/sect.A1)
EXDU_BB (bay n/sect.A1)
ANSI04000494 V1 EN-US
Figure 168: Signals from any bays in section A1 to a bus-section disconnector
For a bus-section disconnector, these conditions from the A2 busbar section are valid:
336
189 is open.
289 is open (AB_TRAFO, ABC_LINE).
289 and 2089 are open (ABC_BC).
The switch status of 189 is valid.
The switch status of 289 is valid.
The switch status of 289 and 2089 are valid.
No transmission error from the bay that contains the above information.
The bus-section disconnector is open.
The switch status of bus-section disconnector DC is valid.
No transmission error from the bay 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 BS (bus-section coupler bay) that contains the
above information.
. . .
AND
. . .
. . .
. . .
AND
. . .
. . .
. . .
AND
. . .
. . .
© 2017 - 2021 Hitachi Power Grids. All rights reserved
S1DC_OP
VPS1_DC
EXDU_BB
en04000494_ansi.vsd
1MRK 505 370-UUS Rev. K
Busbar protection REB670
Application manual