Explain how in a 3 phase induction motor to a rotating magnetic field is developed.

Explain how in a 3 phase induction motor to a rotating magnetic field is developed. 
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Answer :

Production of Rotating Magnetic Field in Three-phase Induction Motor: In three-phase induction motor, the three-phase stator windings are displaced in space by 120° and their three-phase currents are displaced in time by 120°. So they produce the three-phase fluxes which are displaced in space by 120° and also in time by 120°. Such fluxes give rise to the resultant rotating magnetic field.

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