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248
Interlocking
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If there is no bypass busbar and therefore no Q7 disconnector, then the interlocking for
Q7 is not used. The states for Q7, Q75, C_DC, BC_AC, BC_BC are set to open by set-
ting the appropriate module inputs as follows. In the functional block diagram, 0 and 1
are designated 0=FIXD-OFF and 1=FIXD-ON:
•
Q7_OP = 1
•
Q7_CL = 0
•
Q75_OP = 1
•
Q75_CL = 0
•
C_DC_OP = 1
•
BC_AC_OP = 1
•
BC_AC_CL = 0
•
BC_BC_OP = 1
•
BC_BC_CL = 0
•
EXDU_BPB = 1
•
VP_C_DC = 1
•
VP_BC_AC = 1
•
VP_BC_BC = 1
If there is no second busbar B and therefore no Q2 disconnector, then the interlocking
for Q2 is not used. The state for Q2, Q25, BC_AB, BC_BC are set to open by setting
the appropriate module inputs as follows. In the functional block diagram, 0 and 1 are
designated 0=FIXD-OFF and 1=FIXD-ON:
•
Q2_OP = 1
•
Q2_CL = 0
•
Q25_OP = 1
•
Q25_CL = 0
•
BC_AB_CL = 0
•
BC_BC_OP = 1
•
BC_BC_CL = 0
•
VP_BC_AB = 1
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