15.4.2.1 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 324. 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 324: Switchyard layout ABC_LINE (3)
The signals from other bays connected to the module ABC_LINE (3) are described below.
15.4.2.2 Signals from bypass busbar
To derive the signals:
Signal
BB7_D_OP All line disconnectors on bypass WA7 except in the own bay are open.
VP_BB7_D The switch status of disconnectors on bypass busbar WA7 are valid.
EXDU_BPB No transmission error from any bay containing disconnectors on bypass busbar WA7
These signals from each line bay (ABC_LINE, 3) except that of the own bay are needed:
Signal
789OPTR 789 is open
VP789TR The switch status for 789 is valid.
EXDU_BPB No transmission error from the bay that contains the above information.
1MRK 506 369-UUS - Section 15
Control
Line distance protection REL670 2.2 ANSI 701
Application manual
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