An induction engine or 3 phase induction motor can be an AC electric electric motor in which the electric energy in the rotor had a need to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding
An induction electric motor which connects with a 3-phase supply called 3-stage induction motor. Example supporters,blowers, cranes,traction .It really is a ac motor. The primary drawback of DC motors may be the existence of commutator and brushes, which require frequent maintenance and we can not use DC electric motor in explosive and filthy environment. But induction motors are cheaper,rugged,lighter,smaller,require much less maintenance and can use in filthy and explosive environment. Slide s is the imp aspect in this type of motor.
There are 2 types of IM.
Squirrel cage IM
Slip ring IM
There are numerous starting and Three Phase Motor braking condition.
Important starting methods are
Star-delta starter
Auto transformer starter
Ac voltage controller 
starter
Rotor resistance starter
Important braking methods are
Regenerative braking
Plugging or reverse voltage braking
Dynamic braking
But one thing quickness control technique of induction electric motor is important
Pole changing
Stator voltage control
V/f control
Slip power recovery
Rotor resistance control