A study of the insulation property for development of eco-friendly GIS under SF6/N2 mixtures
Gas Insulated systems are widely used in the electric power industry for transmission and distribution of electrical energy. When SF6 was first discovered, the potential application was only considered for insulation because of good dielectric properties. But the widespread use of SF6 gas by electric power and other industries has led to increased concentrations of SF6 gas in the atmosphere. This causes concern as to possible effects on global warming because SF6 is a potent greenhouse gas. This paper presents the dielectric strength and insulating property on SF6/N2 mixtures to make design criteria for developing the GIS. Two types of mixed gases (50%SF6_50%N2, 20%SF6_ 80%N2) were applied. We performed tests for electrode gap, contamination of particles, Triple junction for the spacer and earthing switch and disconnecting switch sections of GIS model. Test gas pressure is from 0.3 to 0.7 MPa. To find the 50% Breakdown voltage, the number of breakdown was performed IS times and all test results were applied to analyze the normal distribution. The study was conducted to develop environment-friendly GIS under SF6/N2.
D.H.Jeong S.Y.Woo K.B Seo J.H Kim
Power & industrial system R&D Center in Hyosung Corporation,454-2 Nae-Dong Sungsan-Gu Changwon-City Power & ndustrial system R&D Center in Hyosung Corporation,454-2 Nae-Dong Sungsan-Gu Changwon-City G
国际会议
西安
英文
168-171
2011-10-23（万方平台首次上网日期，不代表论文的发表时间）