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Induction motor is nothing but rotating transformer it works on principle of mutual induction , mainly induction motor consists of rotor and stator,stator is excited by three phase supply and rotor is shorted through resistances and slip rings. When ever stator is excited by three phase supply a rotating magnetic field running at synchronous speed is produced which in turn cuts the rotor winding causes flowing of current results in production of magnetic fields in rotor which having less than synchronous speed (slip speed), then the interaction of these stator and rotor magnetic fields produces a twisting moment in the rotor called synchronous speed

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Related Questions

Theory for brake test on three phase induction motor?

why three phase induction motor is delta connected


Is 3 phase induction motor is self starting?

Yes, that is one of the major advantages of a three-phase induction motor.


Do you need starter for 0.5HP three phase induction motor?

You never need a starter for a three-phase motor.


How do you start three phase induction motor?

Three Phase Induction Motor is self starting motor so you can start it by conneting to power lines directly if the power line capacity is sufficient.


Is a three phase induction motor self starting?

A three-phase motor has a steady rotating magnetic field generated by the stator coil, and the rotor just follows the field.


Is three phase induction motor used for hoisting device?

ya three phase squirrel cage induction motor used to hoist travel application in industrial cranes


Is three phase induction motor continue running when any of the two phase is disconnected?

This question doesn't really make any sense - any of the two phase? A three phase induction motor requires 3 phases to start - if a single phase is lost while the motor is already running then yes the motor will continue to run. A three phase motor will not start if it is missing a phase.


Full form of scim and srim in three phase induction motor?

Slip Ring Induction Motor and Squirrel Cage Indution Motor


Applications of induction motor?

A single phase induction motor is mainly used in fans.It is capacitor start capacitor run induction motor.In three phase induction motor squirrel cage induction motor is mainly used in elevators,lifts,cranes.slip ring induction motor is mainly used in electrically driven ships.


How is slip in three phase induction motor different from slip in single phase induction motor?

They are the same thing: (Nsync - N)/Nsync, or 1 - N/Nsync


How do you wire a three phase motor with capacitor start?

I have never come across a three phase capacitor start motor. Any three phase motors I have worked on are induction start.


Disadvantages of 3 phase induction motor?

One of the disadvantages of the 3 phase induction motor is that it requires a three wire supply. The other disadvantage is that the 3 phase induction motors have poor starting torque and high have in the rush currents.