ABB REB670 Applications Manual page 148
Busbar protection 2.1 ansi, relion 670 series
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Also See for REB670:
- Applications manual (554 pages) ,
- Commissioning manual (196 pages) ,
- Operator's manual (116 pages)
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Section 6
Differential protection
142
Zone A
Zone B
189
289
Other
Equipment
BI1
152
BI2
Bus-Coupler
Bay
Other
Equipment
ANSI06000153 V1 EN
Figure 64:
Bus coupler bay with two sets of CTs
REB 670
Bxxx
BLKTR
CTRLZA
CTRLZB
TRM
TRZONE
CT Input
TRBAY
A/D
I3PB1
External or Internal
Bus-Coupler BFP
Backup Trip Command
Bxxx
Bus-Coupler Backup
BLKTR
OC Trip
CTRLZA
CTRLZB
TRZONE
CT Input
TRBAY
A/D
I3PB1
BBP & BFP trip command to Bus-Coupler breaker
1MRK 505 337-UUS -
Parameter ZoneSel must
be set to "FixedToZA"
TRIP
CONNZA
CONNZB
OR
TRIP
BOM
CONNZA
CONNZB
Parameter ZoneSel must
be set to "FixedToZB"
en06000153_ansi.vsd
Application manual
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