The impact of thermal degradation on electrical machine winding insulation

M. Sumislawska, Kostas Gyftakis, D.F. Kavanagh, M. McCulloch, K.J. Burnham, D.A. Howey

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)
302 Downloads (Pure)

Abstract

Inter-turn stator short circuits can develop quickly leading to serious damage of an electric machine. However, degradation mechanisms of winding insulation are not yet fully understood. The main contribution of this article is analysis of the impact of thermal ageing on the electrical properties of winding insulation. The insulation samples have been aged thermally at 200-275 °C and for 100-1600 hours. After aging, impedance spectroscopy measurements were undertaken on the samples and equivalent circuit model (ECM) parameters fitted for each measurement. This allows the impact of thermal ageing on ECM parameters to be analysed, giving insight into the changes of the electrical properties of the insulation. Ultimately this will lead to development of new methods for remaining life prediction of electrical machine windings.
Original languageEnglish
Title of host publicationIEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives
PublisherIEEE
Pages232-238
DOIs
Publication statusPublished - 2015

Fingerprint

Machine windings
Insulation
Pyrolysis
Thermal aging
Equivalent circuits
Electric properties
Electric machinery
Short circuit currents
Stators
Aging of materials
Spectroscopy
Degradation

Bibliographical note

This paper was given at the IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 1-4 Sept. 2015, Guarda
© © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

  • electric machine
  • equivalent circuit model
  • impedance spectroscopy
  • polyamide-imide
  • stator winding
  • thermal degradation

Cite this

Sumislawska, M., Gyftakis, K., Kavanagh, D. F., McCulloch, M., Burnham, K. J., & Howey, D. A. (2015). The impact of thermal degradation on electrical machine winding insulation. In IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (pp. 232-238). IEEE. https://doi.org/10.1109/DEMPED.2015.7303695

The impact of thermal degradation on electrical machine winding insulation. / Sumislawska, M.; Gyftakis, Kostas; Kavanagh, D.F.; McCulloch, M.; Burnham, K.J.; Howey, D.A.

IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives. IEEE, 2015. p. 232-238.

Research output: Chapter in Book/Report/Conference proceedingChapter

Sumislawska, M, Gyftakis, K, Kavanagh, DF, McCulloch, M, Burnham, KJ & Howey, DA 2015, The impact of thermal degradation on electrical machine winding insulation. in IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives. IEEE, pp. 232-238. https://doi.org/10.1109/DEMPED.2015.7303695
Sumislawska M, Gyftakis K, Kavanagh DF, McCulloch M, Burnham KJ, Howey DA. The impact of thermal degradation on electrical machine winding insulation. In IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives. IEEE. 2015. p. 232-238 https://doi.org/10.1109/DEMPED.2015.7303695
Sumislawska, M. ; Gyftakis, Kostas ; Kavanagh, D.F. ; McCulloch, M. ; Burnham, K.J. ; Howey, D.A. / The impact of thermal degradation on electrical machine winding insulation. IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives. IEEE, 2015. pp. 232-238
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