If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then_____________?
Correct answer: A. the stator current will be zero
- A. the stator current will be zero
- B. the stator current will be very small
- C. the stator current will be very high
- D. the back e.m.f. will be more than the supply voltage
- E. none of the aboveElectromechanical Devices
Explanation
At no load with negligible losses, the motor needs no real power, so its ideal stator current is zero. In a practical motor it is only small, because magnetizing current and losses still require current, but the stated ideal condition selects zero.
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