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A Study on Characteristics of Insulation Breakdown and Surface Discharge by the Mixing Ratio of Dry Air/O2 gas mixtures
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 Title & Authors
A Study on Characteristics of Insulation Breakdown and Surface Discharge by the Mixing Ratio of Dry Air/O2 gas mixtures
Seok, Jeong-Hoo; Beak, Jong-Hyun; Lim, Dong-Young; Bae, Sungwoo; Kim, Ki-Chai; Park, Won-Zoo;
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This paper presents the discharge characteristics and economic feasibility of a Dry and a mixture gas in order to review alternative. From AC discharge experiment in an quasi-uniform field, it was found that the optimal mixing ratio which breakdown voltage and surface flashover voltage were the highest was 70/30 and that the pressure dependence on the breakdown voltage was higher than that of the surface flashover voltage in the Dry and the mixture gas. The mixing ratio (70/30) and the tendency of the pressure dependence were described in detail based on physical factors (impact ionization coefficient, electron attachment coefficient, secondary electron emission coefficient) involved in discharge mechanism and a electron source, respectively. In addition, the performance insulation and the economic feasibility of the Dry and the mixture gas were discussed so that Dry mixture gaswas more suitable than mixture gas to the alternative.
Breakdown Voltage;Dry Mixture Gas;;Surface Flashover Voltage;
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Dry-Air 중의 동일 연면거리를 가진 고체절연물의 형상 변화에 따른 수직연면방전 특성 연구,전종철;최병주;배성우;이광식;박원주;

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개선된 Dry Air와 SF6의 혼합비에 따른 절연파괴 특성 연구,석정후;백종현;임동영;배성우;김기채;박원주;

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