Physics · Electrical Machines
Which of the following statements correctly identifies and explains a major fault that may occur in an alternator during operation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Earth fault in stator winding reducing output without circulating current.
- 2Rotor open-circuit fault causing equal current sharing among all phases.
- 3Stator inter-turn fault caused by insulation failure between turns, leading to excessive local heating.✓
- 4Field winding short-circuit increasing terminal voltage due to weak excitation.
Correct answer
Stator inter-turn fault caused by insulation failure between turns, leading to excessive local heating.
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