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Interlocking
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The interlocking module A1A2_DC is used for one bus-section disconnector between
section A1 and A2 according to figure 137. The module can be used for different bus-
bars, which includes a bus-section disconnector, that is, not only busbar A.
Q11
A1 (BB1A)
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The signals from other bays connected to the module A1A2_DC are described below.
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If the busbar is divided by bus-section disconnectors, the condition QR RWKHU GLVFRQQHF
WRU FRQQHFWHG WR WKH EXV VHFWLRQ must be made by a project-specific logic.
The same type of module (A1A2_DC) is used for different busbars, that is, for both bus-
section disconnector A1A2_DC and B1B2_DC. But for B1B2_DC, corresponding sig-
nals from busbar B are used.
Section 1
A1
B1
C
AB_TRAFO
ABC_LINE
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To derive the signals:
A2 (BB1B)
99000357.vsd
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
ABC_LINE
A2
B2
ABC_BC
AB_TRAFO
99000373.vsd
&KDSWHU
&RQWURO
A3
B3
C
263
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