Investigation of the broken bar effect on the squirrel cage induction motor by FEM

Induction motor is the main electrical machine for many applications because it has advantage sides. However, it may be affected by many problems. This paper aims to study the broken rotor bar problem by using extensive methodologies, such as current signature analysis, magnetic vector potential, magnetic flux density and joule loss density, to investigate the broken rotor bar. Finally, the motor performances, relating to the broken rotor bar effect, are illustrated.