Three-Phase Squirrel Cage Induction Motor

A three-phase squirrel cage induction motor is an electric motor that uses a rotating magnetic field to induce current in the rotor, causing it to rotate.

• It consists of a stator with windings that create a rotating magnetic field.
• The rotor has bars of conductive material (usually aluminum or copper) embedded in a laminated iron core, resembling a squirrel cage.
• When the three-phase power supply is connected to the stator windings, it creates a rotating magnetic field that interacts with the rotor bars.
• This interaction induces a current in the rotor bars, creating its own magnetic field.
• The interaction between the stator and rotor magnetic fields causes torque, which rotates the shaft.