Inter-turn stator winding fault diagnosis in three-phase induction motors, by Park´s Vector approach

The subject of online detection and location of inter-turn short circuits in the stator windings of three-phase induction motors is discussed, and a noninvasive approach, based on the computer-aided monitoring of the stator current Park´s vector, is introduced. Experimental results, obtained by using a special fault producing test rig, demonstrate the effectiveness of the proposed technique for detecting inter-turn stator winding faults in operating three-phase induction machines