ABB RELION 670 Series Applications Manual page 139

1MRK 505 337-UUS A
Accordingly the following solutions are possible:
Table 22:
Version of REB670 IED
3PH; 2-zones, 4-bays BBP (A20)
3PH; 2-zones, 8-bays BBP (A31)
1Ph; 2-zones, 12-bays BBP (B20)
1Ph; 2-zones, 12-bays BBP (B21)
1Ph; 2-zones, 24-bays BBP (B31)
Please note that table
any VT inputs.
152
252
352
ANSI06000125 V1 EN-US
Figure 71:
For this type of busbar arrangement the double busbar bay is usually connected to the reactive
power compensation equipment (that is, shunt reactor or shunt capacitor). The diameters in the
one-and-half breaker part of the station have at the same time the role of the bus-coupler bay.
Therefore, zone interconnection, zone selection and disconnector replica facilities have to be
provided for all double busbar bays.
Application manual
Typical solutions for combination between double breaker and double busbar station layouts
22 is given for the preconfigured versions of REB670 which do not contain
152 152
152
252 252 252
352
352
352
Combination between one-and-half breaker and double busbar station layouts
Number of double Number of REB670 IEDs required for the
breaker feeders / scheme
Number of double
busbar feeders in the
station
NA NA
2/4 1
NA NA
3/6 3
3/18 3
152
252
352
189 289
152
Differential protection
ZA
ZB
189 289
152
xx06000125_ansi.vsd
Section 6
133