Techniques for On-Line Diagnosis of Stator Shorted Turns in Induction Motors
Albizu Flórez, Igor
Zamora Belver, Inmaculada
Mazón Sainz-Maza, Angel Javier
Tapia Otaegui, María Aranzazu
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Electric Power Components and Systems 34(1) : 97-114 (2006)
In low voltage induction motors, the first indication of a stator fault is the appearance of an inter-turn short circuit. For this reason, several attempts to diagnose reliably these short circuits have been made. Although considerable research has been carried out, the diagnosis of inter-turn short circuits is not a mature technique yet. This paper presents and analyzes the on-line inter-turn short circuit diagnostic techniques developed so far for line-connected induction motors. By means of a comparative study, their advantages and drawbacks are highlighted.