Interturn Insulation Quality Assessment, Considering the Standards State

Usage of drive fed induction motors due to numerous and considerable industrial benefits of this kind of electrical machines are obviously increasing. On the other hand, voltage distribution in stator winding of drive fed induction motors is not completely predictable. Non uniform voltage distribution results from the short rise time surges which arise from electrical drives. According to the published reports and papers, interturn insulation deterioration due to non-uniform voltage distribution constitutes one of the main parts of the stator insulation failures. This issue could be potentially considered as a source of unscheduled shutdowns in the industries and consequently big financial losses. In order to assess the suitability and condition of interturn insulation, test methods have…