The length cf air gap to be provided in __________ is primarily determined by power factor consideration?
Correct answer: C. induction motor
- A. d.c. series motor .
- B. d.c. shunt motor
- C. induction motor
- D. synchronous motor
Explanation
The induction motor air gap is kept carefully controlled because it strongly affects magnetizing current and hence the power factor. A larger gap requires more reactive magnetizing current, lowering the power factor.
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