April 20, 2012

What are the various faults that would affect an alternator?


(a) Stator faults
1, Phase to phase faults
2, Phase to earth faults
3, Inter turn faults


(b) 1, Earth faults
2, Fault between turns
3, Loss of excitation due to fuel failure


(c) 1, Over speed
2, Loss of drive
3, Vacuum failure resulting in condenser pressure rise, resulting in shattering of the turbine low pressure casing


(d) 1, Fault on lines
2, Fault on busbars

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