Influence of Flashover Initiation Process on Surface Insulation Performance for Insulators under Impulse Voltage in Vacuum

  • Guo Qiang Su
  • , Di Fan
  • , He Jin Liu
  • , Feng Wang
  • , Yang Liu
  • , Yan Bo Wang
  • , Jun Bo Deng
  • , Guan Jun Zhang

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

1 Scopus citations

Abstract

This study experimentally presents how the flashover evolves from cathode-initiated to anode-initiated. An intensified CCD camera was employed to capture the surface flashover development process across 95% alumina ceramics in vacuum under seven kinds of electrode-sample structures with different electric field distributions. Experiments results suggested that flashover could initiate at either cathode or anode, which strongly depended on the competition between the localized field stress and electrical strength of the material. A basic relationship between surface flashover development process and its insulation performance was established. This study may contribute to guide the design of facilities used for pulsed power and electro-vacuum fields to achieve higher insulation capability.

Original languageEnglish
Title of host publication2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages230-233
Number of pages4
ISBN (Electronic)9781728131214
DOIs
StatePublished - Oct 2019
Event2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019 - Richland, United States
Duration: 20 Oct 201923 Oct 2019

Publication series

NameAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Volume2019-October
ISSN (Print)0084-9162

Conference

Conference2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019
Country/TerritoryUnited States
CityRichland
Period20/10/1923/10/19

Fingerprint

Dive into the research topics of 'Influence of Flashover Initiation Process on Surface Insulation Performance for Insulators under Impulse Voltage in Vacuum'. Together they form a unique fingerprint.

Cite this