Determination of electrical aging test voltage level under a low-pressure environment for accurate lifetime prediction

Yatai Ji, Paolo Giangrande, Weiduo Zhao, Vincenzo Madonna, He Zhang, Michael Galea

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Rapid growth of electric stress boosts the partial discharge (PD) risk of insulation and leads to electrical aging. For transportation applications (i.e., safety-critical), reliability is top-priority which means the lifetime of electrical machines (EMs) should be accurately estimated. Electrical aging of Type II insulated EMs caused by PD activity is greatly affected by ambient pressure. During accelerated aging tests, an improper test voltage selection might result in misleading lifetime estimation. In this paper, the allowable voltage levels are accurately determined by relying on aging tests under six different voltage levels at 600mbar, which gives a useful guideline for insulation design and the reliability of EMs could be accurately assessed.

Original languageEnglish
Title of host publication2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages550-554
Number of pages5
ISBN (Electronic)9798350317589
DOIs
Publication statusPublished - 2023
Event26th International Conference on Electrical Machines and Systems, ICEMS 2023 - Zhuhai, China
Duration: 5 Nov 20238 Nov 2023

Publication series

Name2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023

Conference

Conference26th International Conference on Electrical Machines and Systems, ICEMS 2023
Country/TerritoryChina
CityZhuhai
Period5/11/238/11/23

Keywords

  • electrical aging
  • electrical machines
  • partial discharge
  • pressure
  • reliability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Automotive Engineering

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