Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Influence of Surface Shape on Particle-initiated Breakdown in $SF_6$ Gas

$SF_6$ 가스중의 연면형상이 입자오손 파괴 전압에 미치는 영향

  • Lee, Hyeong-Ho (High Voltage Lab., Korea Electrotechnology Research Institute) ;
  • Kim, Min-Kyu (High Voltage Lab., Korea Electrotechnology Research Institute)
  • 이형호 (한국전기연구소 고전압연구실) ;
  • 김민규 (한국전기연구소 고전압연구실)
  • Published : 1993.07.18
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Abstract

Surface breakdown characteristics are investigated under metallic-particle contaminated conditions in $SF_6$ gas. The main results show that a rib increases breakdown voltage by a corona stabilization effect and the elongation of discharge path. The breakdown voltage at higher pressures than 4 atm may be estimated on the basis of mean breakdown field strength($E_{BD}$) and discharge length(L) which depend on gas pressure and surface shape.

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