Synchrounous motor is three phase motor,but its not self
starting .why?
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Answer Posted / ashli
synchronous motor stator has 3 ph winding n rotor s suplied
by a dc suply to form a north n south pole..supose two
magnets are aligned axialy. now rotate one of them slowly.
the other one also starts rotating with dat. thatz how the
working of syn motor can be xplained in a very simple way.
if we rotate the magnet fastly the other one cant move with
that much speed becoz of its inertia. when 3 phase suply s
given to the stator winding, a rotating magnetic field is
created with syn speed. but the rotor cant rotate. so at
first the rotor s rotated by some external means to the syn
speed n then give suply to the stator.so that the rotor
continues to rotate with syn speed
| Is This Answer Correct ? | 79 Yes | 12 No |
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