ABB Relion 670 Series Applications Manual page 125
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- Technical manual (1432 pages) ,
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- Applications manual (944 pages)
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1MRK 505 370-UUS Rev. K
152
152
BI1
BI1
252
Double
breaker
ANSI06000148 V1 EN-US
Figure 59:
6.1.4.7
Breaker-and-a-half busbar arrangements
A fewer number of circuit breakers are needed for the same flexibility as for double circuit breaker busbar
arrangement, as shown in Figure 60.
Busbar protection REB670
Application manual
REB 670
Zone A
152 Internal BFP
Backup Trip Command
TRM
CT Input
A/D
Other
Equipment
CT Input
A/D
Other
Equipment
252 Internal BFP
Backup Trip Command
Zone B
Feeder bay in double bus – double breaker station
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Bxxx
BLKTR
TRIP
CTRLZA
CONNZA
CTRLZB
CONNZB
TRZONE
Parameter ZoneSel must
TRBAY
be set to "FixedToZA"
I3PB1
BOM
Bxxx
BLKTR
TRIP
CTRLZA
CONNZA
CTRLZB
CONNZB
TRZONE
Parameter ZoneSel must
TRBAY
be set to "FixedToZB"
I3PB1
OR
en06000148_ansi.vsd
Section 6
Differential protection
BBP &
BFP
TRIP
152
BBP &
BFP
TRIP
252
BFP
Remote
Feeder
End
Inter-
Trip
M6646-3 v5
119
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