中国电机工程学报2011，Vol.31Issue(7)：119-124,6.
C4F8/N2混合气体局部放电特性实验研究
Experimental Study of Partial Discharge Characteristics of C4F8/N2 Mixtures
摘要
Abstract
Because of the greenhouse effect of SF6 gas, it became a common view that less or no SF6 gas would be used in future. The partial discharge (PD) characteristics of C4F8/N2 gas mixtures and the possibility of substituting SF6 gas used in gas insulated equipment were discussed. The partial discharge inception voltages of C4F8/N2 gas mixtures were measured in different gas pressures, mixing ratios and electrodes distances,and compared with that of pure SF6 gas. The influences of these factors were also analyzed. The results show that the partial discharge inception voltages of pure C4F8 gas are about 1.3 times of that of pure SF6 gas; the C4F8 gas has a synergism with N2 gas, and the synergism factor is about 0.45; and the partial discharge characteristics of C4F8/N2 mixtures are similar to that of SF6/N2 with the same mixing ratio. Therefore, after considering the liquefaction temperature, the effects on environmental and the characteristics of partial discharge, it has a possibility that C4F8/N2 gas mixtures can be used in gas insulated equipment for substituting SF6 gas.关键词
电力系统/C4F8/N2/混合气体/局部放电/协同效应分类
信息技术与安全科学引用本文复制引用
邢卫军,张国强,李康,牛文豪,王新,王迎迎..C4F8/N2混合气体局部放电特性实验研究[J].中国电机工程学报,2011,31(7):119-124,6.基金项目
国家自然科学基金项目(50877075). （50877075）
