Breakdown resistance analysis of traction motor winding insulation under thermal ageing

K. N. Gyftakis, P. A. Panagiotou, N. Lophitis, D. A. Howey, M. D. McCulloch

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

2 Citations (Scopus)
20 Downloads (Pure)

Abstract

Stator inter-Turn faults are among the most important electric motor failures as they progress fast and lead to catastrophic motor breakdowns. Inter-Turn faults are caused due to the windings' insulation degradation. The main stress which deteriorates the insulation is the thermal one. Proper understanding of how this stress influences the electrical properties of insulation over time may lead to reliable prognosis and estimation of the motor's remaining useful life. In transport applications where reliability and safety come first it is a critical issue. In this paper, extensive experimental testing and statistical analysis of thin film insulation for traction motor windings has been performed under fixed thermal stress. The results indicate that for high thermal stress the electrical properties of the insulation material present a non-monotonic behavior thus proving the well-known and established Arrhenius law inadequate for modelling this type of problems and estimating the remaining useful life of thin film insulation materials.

Original languageEnglish
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5819-5825
Number of pages7
Volume2017-January
ISBN (Electronic)978-1-5090-2998-3, 978-1-5090-2997-6
ISBN (Print)978-1-5090-2999-0
DOIs
Publication statusPublished - 3 Nov 2017
Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
Duration: 1 Oct 20175 Oct 2017

Conference

Conference9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
CountryUnited States
CityCincinnati
Period1/10/175/10/17

Bibliographical note

© 2018 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

  • Breakdown Voltage
  • Degradation
  • Electric Motor
  • Insulation
  • Prognosis

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization

Fingerprint Dive into the research topics of 'Breakdown resistance analysis of traction motor winding insulation under thermal ageing'. Together they form a unique fingerprint.

Cite this