Squirrel Cage Rotor Electrical4U. This can be done by simply adjusting the shape of the bars in the rotor. The rotor is having cage kind of structure so that it is called squirrel cage rotor.
There is no electrical connection between these bars and the motor terminal box.
Squirrel cage type rotor consists of bars of copper that we call conductors. In a squirrel cage induction motor, the rotor has conductive bars embedded in slots in the laminations, running the length of the rotor. Squirrel cage induction motor classification: These extended conductors are short circuited with each other by means of copper rings on each sides.