WA1 (A)
WA2 (B)
189
189G
289G
989G
689
989
289
189G
289G
389G
689
389G
6289
6189
189G
289G
989G
989
BH_LINE_A
BH_LINE_B
BH_CONN
en04000513_ansi.vsd
152
152
152
ANSI04000513 V1 EN
Figure 182: Switchyard layout breaker-and-a-half
Three types of interlocking modules per diameter are defined. BH_LINE_A (3) and
BH_LINE_B (3) are the connections from a line to a busbar. BH_CONN (3) is the
connection between the two lines of the diameter in the breaker-and-a-half switchyard
layout.
For a breaker-and-a-half arrangement, the modules BH_LINE_A, BH_CONN and
BH_LINE_B must be used.
11.5.8.2 Configuration setting
For application without 989 and 989G, 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:
• 989_OP = 1
• 989_CL = 0
Section 11 1MRK 506 334-UUS A
Control
374
Application manual
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