An experimental and analytical study of plasma closing switches filled with environmentally friendly gases

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

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In recent years there has been a desire within the pulsed power community to find potential alternative gases to sulphur hexafluoride (SF6) for use within pulsed power systems. Within plasma closing switches (PCSs), the desire to use environmentally friendly gases has come as a result of environmental concerns over the emissions of currently used gases into the atmosphere and contributing to the global warming problem. One of the main issues in finding a suitable replacement gas or gases for use in PCSs is that the performance characteristics of a switch filled with an alternative gas or gas mixture should be comparable to the performance characteristics of conventional SF6-filled switches. The research presented in this paper is an expansion of previous work conducted and forms an experimental and analytical evaluation of breakdown characteristics in two commonly used PCS topologies (a two-electrode self-breakdown switch and a field distortion switch) when filled with different gases (air, oxygen-nitrogen mixtures, argon oxygen mixture, nitrogen and carbon dioxide) over a range of pressures from 0.1 MPa to 0.45 MPa and for a range of inter-electrode distances.
Original languageEnglish
Title of host publication2015 IEEE Pulsed Power Conference (PCC)
Place of PublicationPiscataway, NJ.
Number of pages6
ISBN (Print)9781479984039
Publication statusPublished - 12 Oct 2015
EventIEEE International Pulsed Power Conference 2015 - TX, USA, Austin, United States
Duration: 31 May 20154 Jun 2015


ConferenceIEEE International Pulsed Power Conference 2015
Country/TerritoryUnited States


  • electrodes
  • plasma switches
  • pulsed power switches
  • sulphur compounds
  • argon
  • breakdown voltage
  • electric breakdown
  • nitrogen
  • optical switches
  • plasmas


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