FAULT LEVEL DETECTION OF A THREE PHASE INDUCTION MOTOR USING MATLAB SIMULINK

This paper present a MATLAB based fault level detection of a three phase induction motor. Because of their simple and durable structure, as well as low production costs, three phase induction motors are employed in a wide range of applications. When it is in use, it is vulnerable to damage due to the defects that may occur. Overcurrent, unbalanced, overvoltage, undervoltage, single phasing, are examples of faults. Induction motors are employed in a wide range of industrial applications. THD (Total harmonic distortion) is also a problem for electrical engineers as it leads to heavy power loss in AC induction motors. These losses in AC induction motors leads to excessive heating, which happens because of additional copper losses and iron losses (eddy current and hysteresis losses) in the stator winding, rotor circuit, and rotor laminations. This causes lots of electrical equipment failure in the plants. The proposed scheme is simulated using MATLAB Simulink. MATLAB simulation results show that the well trained protest scheme is able to detect all types of internal faults and THD at different location.