Investigation on Metal Oxide Varistors in DC Circuit Breakers

Reza Kheirollahi, Charlie Dang, Shuyan Zhao, Hua Zhang, Fei Lu

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

1 Scopus citations

Abstract

This paper deals with metal oxide varistors (MOVs) in direct current (dc) circuit breakers (DCCBs). Two significant features of the MOVs are studied. First, the manufacturing parameters of MOVs are reviewed, and impacts of various main and dopant materials on the electrical parameters of MOVs are explored. Breakdown voltage and leakage current are primarily considered under different ceramic semiconductor materials. Second, MOVs' practical issues in DCCBs are discussed. Results show that MOVs bring reliability issues in DCCBs and significantly reduce the voltage utilization rate of the main switch. Experiments of 375 V/100 A are conducted to reveal thermal runaway failure in MOVs and highlight the corresponding reliability issue.

Original languageEnglish (US)
Title of host publicationIECON 2022 - 48th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
ISBN (Electronic)9781665480253
DOIs
StatePublished - 2022
Externally publishedYes
Event48th Annual Conference of the IEEE Industrial Electronics Society, IECON 2022 - Brussels, Belgium
Duration: Oct 17 2022Oct 20 2022

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2022-October

Conference

Conference48th Annual Conference of the IEEE Industrial Electronics Society, IECON 2022
Country/TerritoryBelgium
CityBrussels
Period10/17/2210/20/22

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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