Electrical Engineering · Synchronous Motors
What is the primary reason why a standard 3-phase synchronous motor is NOT inherently self-starting under normal supply conditions?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The stator produces a stationary non-rotating magnetic field
- 2The static magnetic field of the stator opposes rotor motion
- 3The rapidly alternating stator field causes the net starting torque to average to zero over a cycle✓
- 4The rotor fails to produce a magnetic field when stationary
Correct answer
The rapidly alternating stator field causes the net starting torque to average to zero over a cycle
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