Synchrounous motor is three phase motor,but its not self
starting .why?
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Answer Posted / m. ramakrishna
synchoronus motor not self strting at starting because
supply is given to the stator winding it produces
synchoronous speed .rotor does not catch the stator speed
because inertia of rotor .in order avoid this problem we r
u giving external dc supply .hence it is called
synchoronous motor doubly exited machine
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