The synchronous motor has zero starting torque and must be run up to operating speed by an external drive (inherently not self starting). When the rotor poles are almost in synchronism with the rotating field produced by the stator, they pull into step and then the rotor runs at synchronous speed.
The synchronous motor has zero starting torque and must be run up to operating speed by an external drive (inherently not self starting). When the rotor poles are almost in synchronism with the rotating field produced by the stator, they pull into step and then the rotor runs at synchronous speed.
Chapter37: Automatic Speed Control For Wound Rotor Motors
Section: Chapter Questions
Problem 1SQ
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The synchronous motor has zero starting torque and must be run up to operating speed by an external drive (inherently not self starting). When the rotor poles are almost in synchronism with the rotating field produced by the stator, they pull into step and then the rotor runs at synchronous speed.
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