09-09-2017, 11:56 AM
An induction motor, 3-phase induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor necessary to produce the torque is obtained by electromagnetic induction of the magnetic field of the stator winding. Therefore, an induction motor can be made without electrical connections to the rotor. The rotor of an induction motor can be of the wound type or squirrel cage.
Three-phase induction motors with squirrel cage are widely used in industrial drives because they are robust, reliable and economical. Single-phase induction motors are widely used for smaller loads, such as appliances such as fans. Although traditionally used in fixed speed service, induction motors are increasingly being used with variable speed drives (VFDs). VFDs offer particularly important energy saving opportunities for existing and potential induction motors in variable torque, fan, compressor, and centrifugal fan load applications. Squirrel cage induction motors are widely used in both fixed speed and variable frequency (VFD) applications.
Three-phase induction motors with squirrel cage are widely used in industrial drives because they are robust, reliable and economical. Single-phase induction motors are widely used for smaller loads, such as appliances such as fans. Although traditionally used in fixed speed service, induction motors are increasingly being used with variable speed drives (VFDs). VFDs offer particularly important energy saving opportunities for existing and potential induction motors in variable torque, fan, compressor, and centrifugal fan load applications. Squirrel cage induction motors are widely used in both fixed speed and variable frequency (VFD) applications.