ABB Relion 670 Series Applications Manual page 132

Section 6
Differential protection
189
289
BI1
Bus-Coupler
Bay
ANSI06000154 V1 EN-US
Figure 66:
189
289
BI1
Bus-Coupler
Bay
ANSI06000155 V1 EN-US
Figure 67:
126
Zone A
Zone B
REB 670
CB Closing
Signal
b a
152
SSxx
DISABLE
NO
NC
BIM
External or Internal
Bus-Coupler BFP
Backup Trip Command
Bus-Coupler Backup
OC Trip
CT Input
A/D
Other
Equipment
Bus coupler bay with one CT and a&b aux. contact from CB
Zone A
Zone B
REB 670
b
152
BIM
CB Closing
Signal
External or Internal
Bus-Coupler BFP
Backup Trip Command
Bus-Coupler Backup
OC Trip
TRM
CT Input
A/D
Other
Equipment
Bus coupler bay with one CT and b aux. contact only from CB
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t=1s
t
OR
CLOSED
OPEN
Bxxx
ALARM
BLKTR
TRIP
FORCED
CTRLZA
CONNZA
CTRLZB
CONNZB
ZEROCUR
TRZONE
TRBAY
I3PB1
TRM
Parameter ZoneSel must be
set to "FixedToZA&-ZB"
tZeroCurrent=150ms
BBP & BFP trip command to Bus-Coupler breaker
en06000154_ansi.vsd
t=1s
t
OR
AND
Bxxx
BLKTR
TRIP
CTRLZA
CONNZA
CTRLZB
CONNZB
ZEROCUR
TRZONE
TRBAY
I3PB1
Parameter ZoneSel must
be set to "FixedToZA&-ZB"
tZeroCurrent=150ms
BBP & BFP trip command to Bus-Coupler breaker
en06000155_ansi.vsd
1MRK 505 370-UUS Rev. K
BOM
BOM
Busbar protection REB670
Application manual