Physics · Electrical Machines
How does the armature reaction affect the main field flux in an alternator when operating at a purely leading power factor (zero power factor leading)?
- 1It is demagnetizing, which reduces the net field flux and generated voltage.
- 2It is purely magnetizing, thereby strengthening the main field flux without distortion.✓
- 3It cross-magnetizes and severely weakens the main field flux.
- 4It purely distorts the main field flux without changing its magnitude.
Correct answer
It is purely magnetizing, thereby strengthening the main field flux without distortion.
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