The bus bar zone faults are generally
Phase to phase faults
Single line to ground faults
Double line to ground faults
3 Phase short circuits
Single line to ground faults
Most of faults occurred on
buses are one phase to ground (L-G), but faults may be caused from different
sources. In fact, a large proportion of busbar faults result from human error
rather than the failure of switchgear components.
Hence, the correct option is
(B).
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