Comparing with general squirrel-cage rotor induction motor, the ratio of start torque to start current ideal is also improved remarkably.

A new method to detect rotor cage fault of induction motor is presented, which monitors if the output power signal comprises a direct component and an alternating component or only a direct component.

This paper introduces a method for calculating the temperature rise of rotor bars and end rings of squirrel cage induction motor during starting.