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242
Interlocking
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The following sections describe how the interlocking for a certain switchgear configu-
ration can be realised by using standard interlocking modules and their interconnec-
tions. They also describe the parameter settings. The EXVVA_xx input signals, which
are normally not used, are always set to 1=FIXD-ON. The inputs for delivery specific
conditions (QxEXy) are set to 1=FIXD-ON, if they are not used except:
•
Q9EX2 and Q9EX4 in modules BH_LINE_A and BH_LINE_B
•
Q0EX3 in module AB_TRAFO
which are set to 0=FIXD-OFF.
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The interlocking module ABC_LINE is used for a line connected to a double busbar ar-
rangement with a transfer busbar according to figure 121. The module can also be used
for a double busbar arrangement without transfer busbar or a single busbar arrangement
with/without transfer busbar.
Q1
Q2
Q51
Q0
Q52
Q9
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The signals from other bays connected to the module ABC_LINE are described below.
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To derive the signals:
A (BB1)
B (BB2)
C (TB)
Q7
Q8
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