Induction Motor :-
>>In induction type motor, the stator is made of high silicon steel stamping camped together. Slots are cut in the stator in which windings are placed.In this stator alaminated cored rotor is placed.The rotor slots hold suitable windings which are so connected that it makes closed circuits.
When a 3-phase supply is given to the stator,a rotating magnetic field is produced in the stator.This rotating field produces induced e.m.f.s. in rotor windings which cause induced current to circulate.By Lenz's law these induced currents tend to oppose the action,producing then and therefore they circulate in such a manner that a torque isProduced in the rotor tending to cause it to follow the rotating field and thus reduce the relative marion which is producing the induced current.
There is no electrical corulection to the rotor from the 3-phase supply and no other supply is needed.
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