Chemical and Electron Interaction Properties of Potential Gaseous Insulation and Arc-quenching Media

Authors

  • L. Zhu Department of Electrical Engineering, Shanghai Jiao Tong University, No.1954 Huashan Rd., 200030,Shanghai
  • D. Tanand Department of Electrical Engineering, Shanghai Jiao Tong University, No.1954 Huashan Rd., 200030,Shanghai
  • S. Zhao Department of Electrical Engineering, Shanghai Jiao Tong University, No.1954 Huashan Rd., 200030,Shanghai
  • D. Xiao Department of Electrical Engineering, Shanghai Jiao Tong University, No.1954 Huashan Rd., 200030,Shanghai

DOI:

https://doi.org/10.14311/ppt.2017.1.74

Keywords:

chemical property, electron interaction, insulation, arc interruption

Abstract

The global warming effects of sulphur hexafluoride (SF6) lead researchers to look for new environmentally-friendly gas media in high-voltage electrical apparatus. The present paper discusses basic chemical and electron interaction properties that brings high insulation strength and good arc interruption capability for a gas. The conclusion shows that gaseous compounds composed of elements in the upright area of periodic table of elements generally have stronger electronegative ability and good electrical properties. And double bond or triple bond in gas molecule can effectively improve the dielectric strength. For gas mixtures, good cooperation of gases will generate synergetic effect, which makes its dielectric strength higher than the weighted average value of each gas. Some aspects in searching for new arc interruption media are also discussed.

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Published

2017-10-15

Issue

Vol. 4 No. 1 (2017)

Section

Articles

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