The maximum speed variation in a 3-phase synchronous motor is____________?
Correct answer: E. zero
- A. 10 per cent
- B. 6 per cent
- C. 4 per cent
- D. 2. per cent
- E. zero
Explanation
In steady operation, a synchronous motor remains locked to the rotating field and runs at synchronous speed. Hence its ideal speed variation with load is zero, although transient hunting can occur.
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