대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

Dust Figure를 이용한 스페이서상의 대전전하 분포해석

An Analysis on the Charge Distribution on the Spacer Using Dust Figure

  • Choi, Jae-Gu (Korea Electrotechnology Research Institute, KERI) ;
  • Seo, Kil-Soo (Korea Electrotechnology Research Institute, KERI) ;
  • Kim, Young-Bae (Korea Electrotechnology Research Institute, KERI) ;
  • Kim, Ik-Soo (Korea Electrotechnology Research Institute, KERI)
  • 발행 : 1998.07.20
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초록

Unlike AC, DC dielectric characteristics of the spacer are very influenced by the quantity and the distribution of surface charges. A general impression of the distribution of surface charges is obtained if electrostatic powders are sprinkled over the surface. The distribution of surface charge was investigated with dust figures. Mechanism of charge accumulation on the spacer of $SF_6$ GIS has been studied using various types of model spacers which have different depths. As a result, it was found that charge accumulation was dominantly influenced by the normal component of the electric field and the usage of embedded electrodes was an adequate method to lessen field concentration around the triple junction. The guide of the optimum depth of the spacer was proposed.

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