ABB REG670 Applications Manual

15.3.9 Interlocking for 1 1/2 CB BH
15.3.9.1 Application
The interlocking for 1 1/2 breaker diameter (BH_CONN, BH_LINE_A,
BH_LINE_B) functions are used for lines connected to a 1 1/2 breaker diameter
according to figure
280.
WA1 (A)
WA2 (B)
QB1
QC1
QA1
QC2
QC9
QB6
QB9
QB2
QC1
QA1
QC2
QC3
QB6
QC3
QB62
QB61
QA1
QC1
QC2
QC9
QB9
BH_LINE_A
BH_LINE_B
BH_CONN
en04000513.vsd
IEC04000513 V1 EN
Figure 280: Switchyard layout 1 1/2 breaker
Three types of interlocking modules per diameter are defined. BH_LINE_A and
BH_LINE_B are the connections from a line to a busbar. BH_CONN is the
connection between the two lines of the diameter in the 1 1/2 breaker switchyard
layout.
For a 1 1/2 breaker arrangement, the modules BH_LINE_A, BH_CONN and
BH_LINE_B must be used.
15.3.9.2 Configuration setting
For application without QB9 and QC9, just set the appropriate inputs to open state and
disregard the outputs. In the functional block diagram, 0 and 1 are designated
0=FALSE and 1=TRUE:
1MRK 502 071-UEN - Section 15
Control
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 547
Application manual

ABB REG670 Specifications

General

Brand	ABB
Model	REG670
Category	Protection Device
Language	English