Rotor fault analysis of an induction motor using FEM

Squirrel cage induction motors are commonly used in industrial and domestic applications, because of their advantages. Now a day´s on line parameter monitoring of induction motors with the help of fault detection algorithms are very useful to the early detection of the fault and protect the motor from catastrophic damages. Rotor fault analysis of three phase induction motors is very helpful for the design of the fault detection algorithm. The rotor of the induction motor is subjected to very low voltages and much higher temperature, compared to the stator winding. Therefore most common failure mode in the rotor is open or broken bar of the rotor. Main aim of this paper is to conduct the study of rotor fault analysis of a three phase squirrel cage induction motor using Finite Element method (FEM) and its result processing is done using MATLAB SIMULINK. This paper presents a systematic approach to analyze the rotor faults of an induction motor.