ABB RELION 670 Series Applications Manual page 129

1MRK 505 337-UUS A
152
BI1
252
BI2
BI3
352
1½ breaker
Diameter
ANSI06000149 V1 EN-US
Figure 60: Diameter in breaker-and-a-half station with breaker failure protection for all three
6.1.4.8 Double busbar single breaker arrangement
This type of arrangement is shown in figure 61.
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
CT Input
A/D
Other
Equipment
352 Internal BFP
Backup Trip Command
Zone B
breakers inside REB670
OR
Bxxx
BLKTR
TRIP
CTRLZA
CONNZA
CTRLZB
CONNZB
TRZONE
TRBAY
Parameter ZoneSel must
be set to "FixedToZA"
I3PB1
Bxxx
BLKTR
TRIP
ZERO-
CTRLZA
CONNZA
ZERO-
CTRLZB
CONNZB
TRZONE
Parameter ZoneSel must
OR
TRBAY
be set to "CtrlIncludes"
I3PB1
and CTConnection="Off"
Bxxx
BLKTR
TRIP
CTRLZA
CONNZA
CTRLZB
CONNZB
TRZONE
Parameter ZoneSel must
TRBAY
be set to "FixedToZB"
I3PB1
OR
BOM
en06000149_ansi.vsd
Differential protection
BFP
Remote
End
Inter-
Trip
Feeder 1
BBP &
BFP
TRIP
152
BFP
TRIP
252
BBP &
BFP
TRIP
352
BFP
Remote
End
Inter-
Trip
Feeder 2
Section 6
M6647-3 v4
123