Answer / soumen koley

to rotate an induction motor a rotating magnetic field is
needed, which is developed by 3-phase ac supply. but the dc
supply develop a stationary magnetic field in the air gap
which can't able to induce emf in the rotor conductor at
stand still so there will be no torque. so an induction
motor can only start by ac supply.

Answer / kamlesh kothari

no, induction motor is not started with dc power supply.

Answer / muthuvel

I accept soumen point second thing is If u are giving DC
current to induction motor the cable winded for induction
will burn.For inductance Alternate current only acceptable
..

Answer / hardik tatamiya

Yes

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