Investigation of Stator Windings Looseness of Polyphase Induction Machine after Rewinded in Workshop: Numerical and Experimental Analysis

  • V Sri Ram Prasad Prasad Kapu National Institute of Technology Raipur
  • Varsha Singh, Dr. National Institute of Technology Raipur
Keywords: Induction Machine, Stator End Windings, Experimental Modal Analysis, Finite Element Analysis, Operational Deflection Shape.

Abstract

Electrical machines, especially induction motors, are broadly employed in industry as they need low maintenance. In this article, the Experimental Modal Analysis (EMA) test plays a significant role in evaluating electrical machine vibrations. The hammer test is a popular EMA approach for locating the exact location of winding looseness. To acquire the modal parameters for validation with a theoretical and numerical model, the EMA is performed on the stator end winding structure. The EMA's Operational Deflection Shape (ODS) confirms the windings' precise deformation. The induction machine's driving end (DE) and non-driving end (NDE) windings are tested to EMA to evaluate the stator slot structure's looseness. The proposed technique was compared to the Finite Element Method (FEM) and theoretical calculations for verification.

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Published
2022-08-24
How to Cite
Kapu, V. S. R. P., & Singh, V. (2022). Investigation of Stator Windings Looseness of Polyphase Induction Machine after Rewinded in Workshop: Numerical and Experimental Analysis. Majlesi Journal of Electrical Engineering. Retrieved from http://mjee.iaumajlesi.ac.ir/index/index.php/ee/article/view/4680
Section
Articles