Detection of Turn to Turn Faults in Stator Winding with Axial Magnetic Flux in Induction Motors

Abstract

Induction motors play a very important part in the safe and efficient running of any industrial plant. Early detection of abnormalities in the motor helps to avoid costly breakdown. Accordingly, this work presents a technique for the diagnosis of turn to turn faults in stator winding in induction motors, with use of axial magnetic flux. Axial leakage flux generates voltages in flux coil sensor and their time based waveforms and frequency presentations are subsequently analyzed. Turn to turn failures in stator windings are studied with load and unload effects. Experimental results prove the efficiency of employed method.