Study on Metallic Particle Motion and Partial Discharge Characteristics in a GIS Tank Filled with CO2 and SF6

Michio Onomoto, Toshihiro Nishimura, Takashi Teshima, Shinya Ohtsuka, Satoshi Matsumoto, Masayuki Hikita, Shin ichiro Tsuru, Arata Tanimura

Research output: Contribution to journalArticle

Abstract

We investigate the insulation properties of CO2 gas in the presence of a metallic particle. CO2 gas attracts attention as an alternative gas to SF6 gas because of its relatively very small global warming coefficient gas and relatively good dielectric strength. To design CO2 gas-insulated apparatus, the influence of a metallic particle on insulation properties has to be clarified. In this paper, we investigate the motion of a metallic particle and partial discharges in CO2 and SF6 gases by measuring acoustic and electromagnetic signals. As a result, it was found that a free metallic particle motion differs in CO2 gas and SF6 gas because of differences in partial discharge characteristics.

Original languageEnglish
Pages (from-to)71-76
Number of pages6
JournalThe transactions of the Institute of Electrical Engineers of Japan.A
Volume125
Issue number1
DOIs
Publication statusPublished - 2005
Externally publishedYes

Keywords

  • CO gas
  • GIS
  • metallic particle motion
  • partial discharge

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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