The Electronegativity Analysis of c-C4F8 as a Potential Insulation Substitute of SF6

The density distributions related to gas electronegativity for c-C4Fs gas, including negative ion, electron number and electron energy densities in the discharge process, are derived theoretically in both plane-to-plane and point-to-plane electrode geometries. These calculations have been performed...

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Bibliographic Details
Published in等离子体科学与技术：英文版 no. 3; pp. 292 - 298
Main Author 赵小令 焦俊韬 李冰 肖登明
Format Journal Article
LanguageEnglish
Published 01.03.2016
Subjects
SF6气体
SF6绝缘
放电过程
电子亲和势
电子数
电性分析
电负性
非均匀电场
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ISSN1009-0630
DOI10.1088/1009-0630/18/3/13

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Summary:The density distributions related to gas electronegativity for c-C4Fs gas, including negative ion, electron number and electron energy densities in the discharge process, are derived theoretically in both plane-to-plane and point-to-plane electrode geometries. These calculations have been performed through the Boltzmann equation in the condition of a steady-state Townsend （SST） experiment and a fluid model in the condition of both uniform and non-uniform electric fields. The electronegativity coefficients a = n-/ne of c-C4Fs and SF6 are compared to further describe the electron affinity of c-C4Fs. The result shows that c-C4Fs represents an obvious electron-attachment performance in the discharge process. However, c-C4Fs still has much weaker gas electronegativity than SF6, whose electronegativity coefficient is lower than that of SF6 by at least three orders of magnitude.
Bibliography:ZHAO Xiaoling , JIAO Juntao , LI Bing , XIAO Dengming Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
electronegativity, c-C4Fs, electron attachment, density distribution
The density distributions related to gas electronegativity for c-C4Fs gas, including negative ion, electron number and electron energy densities in the discharge process, are derived theoretically in both plane-to-plane and point-to-plane electrode geometries. These calculations have been performed through the Boltzmann equation in the condition of a steady-state Townsend （SST） experiment and a fluid model in the condition of both uniform and non-uniform electric fields. The electronegativity coefficients a = n-/ne of c-C4Fs and SF6 are compared to further describe the electron affinity of c-C4Fs. The result shows that c-C4Fs represents an obvious electron-attachment performance in the discharge process. However, c-C4Fs still has much weaker gas electronegativity than SF6, whose electronegativity coefficient is lower than that of SF6 by at least three orders of magnitude.
34-1187/TL
ISSN:1009-0630
DOI:10.1088/1009-0630/18/3/13