ABB REB670 - Double Busbar Arrangements with Two Bus-Section Breakers and Two Bus-Coupler Breakers

en06000155_ansi.vsd
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
BOM
A/D
Parameter ZoneSel must
be set to "FixedToZA&-ZB"
tZeroCurrent=150ms
Other
Equipment
CT Input
TRM
External or Internal
Bus-Coupler BFP
Backup Trip Command
Bus-Coupler Backup
OC Trip
189
289
BI1
ZEROCUR
BIM
CB Closing
Signal
t
t=1s
b
152
AND
OR
ANSI06000155 V1 EN-US
Figure 67: Bus coupler bay with one CT and b aux. contact only from CB
6.1.4.9 Double busbar arrangements with two bus-section breakers and two
bus-coupler breakers
M6649-3 v5
This type of station is commonly used for GIS installations. It offers high operational
flexibility. For this type of stations, two schemes similar to the double busbar station
scheme can be used.
189
289
189
289
189
289
189
289
189
289
189
289
189
289
189
289
189
289
ZA1
ZB1
ZA2
ZB2
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152
152
152
152
152
152 152
152
152
152
152
152
152
ANSI06000016 V1 EN-US
Figure 68: Example of typical GIS station layout
1MRK 505 370-UUS A Section 6
Differential protection
Busbar protection REB670 2.2 ANSI 151
Application manual