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1MRK 505 370-UEN D
Please note that Table
contain any VT inputs.
A principle overall drawing of how to use REB670 for this type of station is given in Figure 58.
QA1
BI1
1500/1
BI2
1500/1
QA2
Double
breaker
IEC06000148 V1 EN-US
Figure 58: Feeder bay in double bus – double breaker station
6.1.4.7
One-and-half circuit breaker
A fewer number of circuit breakers are needed for the same flexibility as for double circuit
breaker busbar arrangement, as shown in Figure 59.
Busbar protection REB670
Application manual
18
is given for the preconfigured versions of REB670 which do not
REB 670
Zone A
QA1 Internal BFP
Backup Trip Command
TRM
CT Input
A/D
Other
Equipment
CT Input
A/D
Other
Equipment
QA2 Internal BFP
Backup Trip Command
Zone B
Bxxx
BLKTR
TRIP
CTRLZA
CONNZA
CTRLZB
CONNZB
TRZONE
Parameter ZoneSel must
TRBAY
be set to "FixedToZA"
I3PB1
Bxxx
BLKTR
TRIP
CTRLZA
CONNZA
CTRLZB
CONNZB
TRZONE
Parameter ZoneSel must
TRBAY
be set to "FixedToZB"
I3PB1
OR
en06000148.vsd
Section 6
Differential protection
BBP &
BFP
TRIP
QA1
BOM
BBP &
BFP
TRIP
QA2
BFP
Remote
Feeder
End
Inter-
Trip
M6646-3 v5
117
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