The power developed by a synchronous motor will be maximum when the load angle is____________?
Correct answer: C. 90°
- A. zero
- B. 45°
- C. 90°
- D. 120°Physics
Explanation
For a synchronous motor, the power-angle relation is approximately proportional to sin δ. This reaches its maximum at a load angle of 90°, beyond which stable operation is not maintained.
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