ABB Relion 650 Series Applications Manual page 165

1MRK 505 287-UUS B
10.3.7.3 Signals from all feeders
To derive the signals:
Signal
BBTR_OP
VP_BBTR
EXDU_12
These signals from each line bay (ABC_LINE), each transformer bay (AB_TRAFO), and bus-coupler
bay (ABC_BC), except the own bus-coupler bay are needed:
Signal
Q1289OPTR
VP1289TR
EXDU_12
For bus-coupler bay n, these conditions are valid:
1289OPTR (bay 1)
1289OPTR (bay 2)
1289OPTR (bay n-1)
VP1289TR (bay 1)
VP1289TR (bay 2)
VP1289TR (bay n-1)
EXDU_12 (bay 1)
EXDU_12 (bay 2)
EXDU_12 (bay n-1)
ANSI04000481 V1 EN-US
Figure 81: Signals from any bays in bus-coupler bay n
If the busbar is divided by bus-section disconnectors into bus-sections, the signals BBTR are
connected in parallel - if both bus-section disconnectors are closed. So for the basic project-
specific logic for BBTR above, add this logic:
Busbar protection REB650
Application manual
No busbar transfer is in progress concerning this bus-coupler.
The switch status is valid for all apparatuses involved in the busbar transfer.
No transmission error from any bay connected to the WA1/WA2 busbars.
189 or 289 or both are open.
The switch status of 189 and 289 are valid.
No transmission error from the bay that contains the above information.
AND
. . .
. . .
AND
. . .
. . .
AND
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. . .
© Copyright 2013 ABB. All rights reserved
BBTR_OP
VP_BBTR
EXDU_12
en04000481_ansi.vsd
Section 10
Control
M13553-6 v3
159