June 8, 2013

Write down some major Faults of Alternator and Transformer.

Major faults in Alternator

  • ü  Failure of prime-mover
  • ü  Failure of field
  • ü  Over Current
  • ü  Over Voltage
  • ü  Over Speed
  • ü  Stator Winding faults
  • ü  Unbalanced loading

Major faults in Transformer

ü  Open circuits
ü  Over heating
ü  Earth Fault
ü  Phase-to-Phase fault
ü  Over Load
ü  Phase to ground fault
ü  Incipient fault
ü  High voltage surge fault


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