Question

synchrounous motor is three phase motor,but its not self starting .why?

Answer 1

Hence synchronous motor is not self starting. For any motor to run ,stator magnetic field and rotor magnetic field should be in same phase. Insynchronous motor ,we are supplying3-phase ac supply to the stator and DC supply to rotor field windings. ... It'sbecause of rotor inertia.

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