ABB REB670 - Example Engineering Procedure

Z1
Z2
Z4
Z5
QB1
QA1
B11
B11
QA1
B12
B11
QA1
Feeder 01
Bus-Interconnector 1 with two CTs Feeder 07-12
QB11
QB21
QB2 QB1 QB2
QB10 QB20
QB1 QB2
QB9
QB7 QB7
QB9
QB1
QA1
B11
Feeder 02-06
QB2
QB9
QB7
B11
Bus-Interconnector 2 with one CT
QB2
QB7
QB1
Z3 Z3
IEC16000144-1-en.vsdx
Sectionalizing disconnectors
IEC16000144 V1 EN-US
Figure 74: Double busbar station with transfer bus and five protection zones
Z1
Z2
Z4
Z5
QB1
QA
CT1
Feeder 01-08
QB11
QB2
bus-interconnector 1
Z3 Z6
QB21
QB31
...
QB3
QB1 QB2 QB3
QB1 QB2 QB3
CT1
CT2
...
QA
bus-interconnector 2
QB2 QB3
QB1 QB2 QB3
CT4
CT5
...
QA
QB2 QB3
QB1 QB2 QB3
CT6
CT7
...
QA
QA
CT8
QB2 QB3
Section 1
Section 2
Sectionalizing disconnectors
bus-interconnector 3 Feeder 09-17
IEC16000145-1.en.v sdx
QB1 QB1
QB1
IEC16000145 V1 EN-US
Figure 75: Triple busbar station with two sections and six protection zones
Z1
Z2
QB1
QA1
CT1
QB2
Z3
QB3
Z4
QB7
BU1
QB1
QA1
CT1
QB2 QB3
QB7
QB20 QB30
QB10
QA1
CT1
QB1 QB2
QB30
QB20
QB1
QA1
CT1
QB2 QB3
QB7
BU1
Z1
Z2
Z3
Z4
Feeder 01-07 Feeder 08-20
IEC16000146-1.en.vsdx
IEC16000146 V1 EN-US
Figure 76: Triple busbar station with transfer bus and four protection zones
6.1.5.3 Example engineering procedure
GUID-8E5A800E-F88D-4C93-B837-78D257774D3B v1
The procedure for how to engineer the triple busbar station with two sections and six
protection zones (see Figure
75) will be presented here.
Step 1: Allocation of protection zones
1MRK 505 370-UUS A Section 6
Differential protection
Busbar protection REB670 2.2 ANSI 157
Application manual