Squirrel Cage Rotor Design for Safety and Reliability Improvement of a Three Phase Induction Machine

This paper presents design of a squirrel cage rotor for safety and reliability improvement a three phase induction machine. Induction motor with designed rotor is capable for use in overloading conditions. Presented rotor design reduces problems related to temperature rise, tooth pulsation loss, cooling, vibration, crawling, cogging and voltage ripples in three phase induction machine. This design reduces pulsation loss, unbalanced magnetic pull and noise in the machine with increase in the air gap length. Overload capacity and reliability improves with increase the air gap length of the machine.