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불평등 전계에서 표준 뇌 임펄스 전압의 SF. /CF₄ 혼합 가스의 절연 내력
허창수(Chang-Su Huh),성허경(Heo-Gyung Sung),박신우(Shin-Woo Park),황청호(Cheong-Ho Hwang),김남렬(Nam-Ryul Kim) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.11
In these days SF. mixtures and alternative gas have been studied because of global warming and liquefying at low temperature and high pressure. At present work the breakdown characteristics of SF. /CF₄ mixture in non-uniform field was performed. The experiments were carried out under positive and negative standard lightning impulse (SLI) voltages. The point-plane electrode was used with 3 ㎜ gap distance in the test chamber. The SF. /CF₄ mixture which contain 20% of SF. was compared with pure SF. and CF₄ gas. Experimental gas pressure ranged from 0.1 to 0.4 ㎫. The breakdown voltage under negative SLI is higher than the breakdown voltage under positive voltage. And the breakdown voltage of SF. 20%, CF₄ 80% mixture is similar to that of pure SF. .