Detection and analysis of eccentricity in three phase squirrel cage induction motor using FEM

Nowadays three phase induction motor is more and more common in used for high power applications due to its rugged nature and flexible operating characteristics. Eccentricity is one of the most important and severe fault that occurs frequently in induction motor. It is due to misalignment of shaft or due to friction between shaft and rotor. So detection and analysis of eccentricity is crucial in industrial application to avoid production loss. This paper investigate how induction motor is modelled using MagNet for the analysis with eccentricity fault. Static 2D and transient 2D analysis were done for healthy and faulty conditions. Comparison are made between faulty and healthy conditions for the parameters like flux linkage, flux density, stator current, torque and energy.