If, in this case, line voltage supervision is added, then rather than setting 989 to open state,
specify the state of the voltage supervision:
• 989_OP = VOLT_OFF
• 989_CL = VOLT_ON
If there is no voltage supervision, then set the corresponding inputs as follows:
• VOLT_OFF = 1
• VOLT_ON = 0
10.4.10 Interlocking for line bay ABC_LINE (3)
10.4.10.1 Application
The interlocking for line bay (ABC_LINE, 3) function is used for a line connected to a
double busbar arrangement with a transfer busbar according to figure
120. The function
can also be used for a double busbar arrangement without transfer busbar or a single
busbar arrangement with/without transfer busbar.
189
289
189G
289G
989
989G
WA1 (A)
WA2 (B)
WA7 (C)
789
en04000478_ansi.vsd
152
ANSI04000478 V1 EN
Figure 120: Switchyard layout ABC_LINE (3)
The interlocking functionality in 650 series can not handle the transfer bus
WA7(C).
1MRK 511 286-UUS A Section 10
Control
255
Application manual
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