For a bus-section circuit breaker between B1 and B2 section busbars, these conditions
are valid:
en04000491_ansi.vsd
S1S2OPTR (A1A2)
BC12OPTR (sect.1)
1289OPTR (bay 1/sect.2)
1289OPTR (bay n/sect.2)
S1S2OPTR (A1A2)
BC12OPTR (sect.2)
1289OPTR (bay 1/sect.1)
1289OPTR (bay n /sect.1)
BBTR_OP
VP_BBTR
EXDU_12
OR
AND
OR
AND
. . .
. . .
. . .
. . .
AND
AND
VPS1S2TR (A1A2)
VPBC12TR (sect.1)
VP1289TR (bay 1/sect.2)
VP1289TR (bay n/sect.1)
. . .
. . .
VPBC12TR (sect.2)
VP1289TR (bay 1/sect.1)
VP1289TR (bay n/sect.1)
. . .
. . .
AND
EXDU_12(bay 1/sect.2)
EXDU_12 (bay n /sect.2)
EXDU_12 (bay 1/sect.1)
EXDU_12 (bay n /sect.1)
EXDU_BS (A1A2)
EXDU_BC (sect.1)
EXDU_BC (sect.2)
. . .
. . .
. . .
. . .
ANSI04000491 V1 EN-US
Figure 145: Signals from any bays for a bus-section circuit breaker between
sections B1 and B2
14.4.5.3 Configuration setting
M15111-57 v3
If there is no other busbar via the busbar loops that are possible, then either the
interlocking for the 152 open circuit breaker is not used or the state for BBTR is set to
open. That is, no busbar transfer is in progress in this bus-section:
• BBTR_OP = 1
• VP_BBTR = 1
1MRK 511 401-UUS A Section 14
Control
Bay control REC670 2.2 ANSI 389
Application manual
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