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Why a synchronous motor does not have a starting torque?

Caleb Wright | 2023-05-05 06:24:05 | page views：1410
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Jackson Hayes

Works at Facebook, Lives in Menlo Park. Graduated from Stanford University with a degree in Computer Science.
This cannot start the motor, so the rotor poles usually have squirrel-cage windings embedded in them, to provide torque below synchronous speed. The machine starts as an induction motor until it approaches synchronous speed, when the rotor "pulls in" and locks to the rotating stator field.
2023-05-11 06:24:05
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Gabriel Wright

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This cannot start the motor, so the rotor poles usually have squirrel-cage windings embedded in them, to provide torque below synchronous speed. The machine starts as an induction motor until it approaches synchronous speed, when the rotor "pulls in" and locks to the rotating stator field.
Synchronous motor - Wikipedia
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