ABB Relion 670 Series Applications Manual page 135

1MRK 505 370-UUS Rev. K
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
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.
Busbar protection REB670
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 any VT
152 152
152
252 252 252
352
352
352
Combination between one-and-half breaker and double busbar station layouts
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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
129