摘要
SF6是目前电气设备中广泛使用的气体绝缘介质,但其产生的温室效应对环境影响极大,因此,研究能替代SF6的环保型气体绝缘介质具有重要的意义。CF4是一种具有低温室效应指数(global warming potential,GWP)和低液化温度的强电负性气体。通过工频击穿试验,研究了CF4/C02混合气体的工频击穿特性,并对其协同效应和GWP值进行分析。结果表明:CF4混合比为50%的CF4/C02混合气体的绝缘强度能达到纯CF4的90%左右,同时GWP值低,具有用于气体绝缘的潜力;CF4/C02混合气体的协同效应值在0.12~0.38,表现出明显的协同效应。
SF6 is a widely used as gas insulating medium in electrical equipment at present, but its greenhouse effect has a great impact on the environment. Therefore, it is of great significance to study the environmental friendly gas insulating medium which can replace SF6. CF4 is a strong electronegative gas with low global wanning potential (GWP) index and liquefaction temperature. In this paper, the power frequency breakdown characteristics of CF4/C 02 mixture were studied by power frequency breakdown test, and its synergistic effect, GWP value are also analyzed. The results show that the insulation strength of CF4/C 02 mixture with 50% CF4 mixing ratio can reach about 90% of pure CF4, and the GWP value is low, so it has potential for gas insulation. The synergistic effect of CF4/C02 mixture is between 0.12 and 0.38, showing obvious synergistic effect.
作者
王兴伟
彭彦卿
袁传镇
傅飞峰
张达敏
WANG Xingwei;PENG Yanqing;YUAN Chuanzhen;FU Feifeng;ZHANG Damin(School of Electrical Engineering and Automation,Xiamen University of Technology,Xiamen 361024,China;Xuji(Xiamen) Intelligent Power Equipment Co.,Ltd.,Xiamen 361024,China)
出处
《中国电力》
CSCD
北大核心
2019年第4期74-79,共6页
Electric Power
基金
国家自然科学基金资助项目(51407151)~~
