한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2007년도 하계학술대회 논문집 Vol.8
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- Pages.462-463
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- 2007
불평등 전계 시 에폭시와 N2, dry-air 혼합절연체의 절연파괴특성
Electrical Breakdown Characteristics of Composite Insulation Composed of Epoxy Resins with N2, Dry-air in Non-uniform Field
- Jung, Hae-Eun (ChungBuk Univ) ;
- Park, Seong-Hee (ChungBuk Univ) ;
- Kang, Seong-Hwa (ChungCheong Univ) ;
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Lim, Kee-Jo
(ChungBuk Univ)
- 발행 : 2007.06.21
초록
SF6 widely used as insulating gas is rising as the environment problem. For decreasing this greenhouse gas, electrical breakdown characteristics of composite insulation composed of epoxy resins with N2, air are studied in non-uniform field. The gap of needle to plane was 3mm, 5mm. The pressure of air, nitrogen was varied within the range of 0.1~0.6MPa. The thickness of a needle is 1mm and the curvature radius of the end of needle is 100um. The diameter of a plane made of the stainless steel is 50mm. As a result of the experiment, the breakdown voltage is increased about 3 times when epoxy resins is composited. The thickness of epoxy resins filled opposite to electrode concentrated electric field weakly influences on breakdown voltage.