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278
Interlocking
These signals from each bus-section disconnector bay (A1A2_DC) are also needed. For
B1B2_DC, corresponding signals from busbar B are used. The same type of module
(A1A2_DC) is used for different busbars, that is, for both bus-section disconnectors
A1A2_DC and B1B2_DC.
6LJQDO
DCOPTR
Signal if the bus-section disconnector is open.
VPDCTR
The switch status of A1A2_DC is valid.
EXDUP_DC
Signal if there is no transmission error from the bay that contains the above
information. This signal is taken from the data valid output on the command
function block.
The logic is identical to the double busbar configuration described in "Signals in single
breaker arrangement".
6LJQDOV LQ EUHDNHU DQG D KDOI DUUDQJHPHQW
The busbar earthing switch is only allowed to operate if all disconnectors of the bus sec-
tion are open.
Section 1
A1
B1
BB_ES
BH_LINE
)LJXUH %XVEDUV GLYLGHG E\ EXVVHFWLRQ GLVFRQQHFWRUV FLUFXLW EUHDNHUV
The project-specific logic are the same as for the logic for the double busbar configura-
tion described in "Signals in single breaker arrangement".
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
BH_LINE
A2
B2
BB_ES
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&RQWURO
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