Electrical Engineering · Synchronous Motors
A synchronous motor is not inherently self-starting primarily because:
- 1The stator winding is unable to create a rotating magnetic field without rotor excitation
- 2The rotor winding resistance is extremely high
- 3The supply frequency is too low for the rotor to accelerate
- 4The rotor magnetic field cannot instantly follow the rapidly rotating stator field at standstill due to rotor inertia✓
Correct answer
The rotor magnetic field cannot instantly follow the rapidly rotating stator field at standstill due to rotor inertia
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