Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Predischarge Phenomena of SF$_6$ Gas in Non-uniform Fields

불평등 전계중에서 SF$_6$ 가스의 전구방전현상

  • 이복희 (인하대학교 공과대학 전기공학과) ;
  • 전덕규 (서울산업대학교 자동차공학과) ;
  • 이창준 (L.G 산전)
  • Published : 1997.11.01
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Abstract

This paper describes dielectric characteristics and discharge development mechanisms of SF$_{6}$ gas stressed by very fast transient overvoltages in inhomogeneous electric field. Predischarge phenomena of SF$_{6}$ gas in non-uniform fields are statistically investigated with positive and negative very fast trannsient overvoltages. It was confirmed that all of the predischarges of the positive and negative polarities develop in a regime of stepwise leader extension. i.e, the predischarge developments leading to breakdown against very fast transient overvoltages are similar to the non-oscillating impulse voltages.ges.

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