A Novel Fuzzyexpert Diagnosis System of Inner-Faults for Three-Phase Squirrel Cage Induction Motors

Three phase induction motors are widely used in industrial production all over the world. Due to high utilization rate, frequent starting and changing load condition, the appearance of failures in induction motors is relatively high. A sudden fault will cause large economic losses. Therefore, the early fault detection becomes very important. During practical operation of three-phase induction motors in industry, the inner faults may occur-in their rotor and stator windings. These kinds of faults will make serious influence on the operation of the motor.