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Fundamental processes of SF/sub 6/ decomposition and oxidation in glow and corona discharges | IEEE Journals & Magazine | IEEE Xplore

Fundamental processes of SF/sub 6/ decomposition and oxidation in glow and corona discharges


Abstract:

It is known that sulfurhexafluoride (SF/sub 6/), used as an insulating gas in HV apparatus, will oxide in electrical discharges in the presence of oxygen or water vapor t...Show More

Abstract:

It is known that sulfurhexafluoride (SF/sub 6/), used as an insulating gas in HV apparatus, will oxide in electrical discharges in the presence of oxygen or water vapor to form various reactive and stable by-products. In order to interpret experimental data on rates of oxidation and by product formation in discharges, meaningfully, it is necessary to apply theoretical chemical kinetics models that utilize rates for numerous gas-phase processes as functions of gas temperature and/or electric-field-to-gas-density ratio. Current knowledge about the fundamental collision processes involving electrons, ions, free radicals, and molecules needed to understand the gas-phase discharge chemistry in SF/sub 6/ is reviewed. Implications of the fundamental rate data reviewed here for recently proposed chemical-kinetics models of corona and glow-type discharges in SF/sub 6/ are discussed.<>
Published in: IEEE Transactions on Electrical Insulation ( Volume: 25, Issue: 1, February 1990)
Page(s): 75 - 94
Date of Publication: 28 February 1990

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