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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Dielectric Characteristics of SF$_6$ Gas in Non-uniform Fields

불평등전계중에서 SF$_6$ 가스의 절연특성

  • 이복희 (인하대학교 공대 전기공학과) ;
  • 전덕규 (서울산업대학교 자동차공학과) ;
  • 이경옥 (인하대학교 공대 전기공학과) ;
  • 안창환 (인하대학교 공대 전기공학과) ;
  • 이창준 (인하대학교 공대 전기공학과)
  • Published : 1997.04.01
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Abstract

This paper describes dielectric characteristics of SF$_{6}$ gas stressed by the non-oscillating and oscillating impulse voltages in inhomogeneous fields disturbed by metallic protrusion. The breakdown voltage-time (V-t) characteristics and breakdown voltage-gas pressure (V-p) characteristics and their characteristics are statistically investigated with positive and negative very fast transient overvoltages. The experiments were carried out using a needle-to-plane gap geometry in the gas pressure ranges from 0.1 to 0.5 MPa. The gap separation gas 22 mm, and the needle-shaped protrusions were made of stainless steel 10 mm in length and 1.0 mm in diameter.r.

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