Double Busbar Single Breaker Arrangement - ABB REB670 Applications Manual

Section 6
Differential protection
6.1.4.8
138
A principle overall drawing of how to use REB670 for breaker-and-a-half station
including internal CBF protection for middle breaker is given in figure 60.
REB 670
Zone A
152 Internal BFP
Backup Trip Command
152
CT Input
BI1
Other
Equipment
252
CT Input
BI2
Other
Equipment
252 Internal BFP
Backup Trip Command
CT Input
BI3
Other
Equipment
352
352 Internal BFP
Backup Trip Command
Zone B
1½ breaker
Diameter
ANSI06000149 V1 EN
Figure 60: Diameter in breaker-and-a-half station with breaker failure protection for
all three breakers inside REB670

Double busbar single breaker arrangement

This type of arrangement is shown in figure 61.
OR
Bxxx
BLKTR
CTRLZA
CTRLZB
TRM
TRZONE
TRBAY
A/D
I3PB1
Bxxx
BLKTR
ZERO-
CTRLZA
ZERO- CTRLZB
A/D
TRZONE
OR
TRBAY
I3PB1
Bxxx
A/D
BLKTR
CTRLZA
CTRLZB
TRZONE
TRBAY
I3PB1
OR
1MRK 505 337-UUS -
BFP
Remote
End
Inter-
Trip
Feeder 1
TRIP
CONNZA
BBP &
CONNZB
BFP
TRIP
152
Parameter ZoneSel must
be set to "FixedToZA"
BFP
TRIP
TRIP
252
CONNZA
CONNZB
Parameter ZoneSel must
be set to "CtrlIncludes"
and CTConnection="Off"
BBP &
BFP
TRIP
TRIP
CONNZA
352
CONNZB
Parameter ZoneSel must
be set to "FixedToZB"
BFP
Remote
End
Inter-
BOM
Trip
Feeder 2
en06000149_ansi.vsd
Application manual