How does a 3 phase induction motor is started?
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Answer Posted / rsr
3 phase supply fed to 3 phase stator winding produces rotating magnetic field rotating at synchronous speed. This field cuts the rotor conductors(bars) and according to faraday's law of electromagnetic induction, an emf is induced in the conductors. since the conductors are short circuited by end rings(squirrel cage), thus current stsrts flowing & it produces its own field. now, we have two fields - one produced by stator and other by rotor , the interaction of these two field led to the development of torque in the direction of rotating magnetic field as per the lenz law
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