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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