Which of the following losses, in a synchronous motor, does not vary with load?
Correct answer: A. Windage loss
- A. Windage loss
- B. Copper losses
- C. Any of the above
- D. None of the above
Explanation
Windage loss is approximately constant when the motor runs at constant synchronous speed, so it does not significantly change with load. Copper loss varies with the square of armature or field current.
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