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ABB REB670 Series - Page 129

ABB REB670 Series
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en06000153.vsd
BOM
QB1
Zone A
Zone B
Bus-Coupler
Bay
REB 670
CTRLZA
CTRLZB
TRIP
CONNZA
CONNZB
Bxxx
I3PB1
BLKTR
TRZONE
TRBAY
BBP & BFP trip command to Bus-Coupler breaker
BI1
2400/1
BI2
2400/1
CT Input
A/D
A/D
CTRLZA
CTRLZB
TRIP
CONNZA
CONNZB
Bxxx
I3PB1
BLKTR
TRZONE
TRBAY
Parameter ZoneSel must
be set to "FixedToZA"
OR
Other
Equipment
Other
Equipment
CT Input
TRM
Bus-Coupler Backup
OC Trip
QB2
QA1
External or Internal
Bus-Coupler BFP
Backup Trip Command
Parameter ZoneSel must
be set to "FixedToZB"
IEC06000153 V1 EN-US
Figure 64: Bus coupler bay with two sets of CTs
1MRK 505 370-UEN D Section 6
Differential protection
Busbar protection REB670 123
Application manual

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