Inter-turn stator winding fault diagnosis in three-phase induction motors, by P...

• Author(s): Cardoso, A. J. Marques ; Cruz, S. M. A. ; Fonseca, D. S. B.
• Date: 1999
• Persistent ID: http://hdl.handle.net/10316/12916
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Induction motors; Fault diagnosis; Stator winding faults; Insulation failure
• Document Type: Article
• Language: English

Description

The subject of on-line 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. On-site tests conducted in a power generation plant, using the diagnostic instrumentation system developed, are also reported