中国电机工程学报2017，Vol.37Issue(12)：3636-3642,7.DOI:10.13334/j.0258-8013.pcsee.161028
冲击电压下CF3I/N2混合气体放电极性效应研究
Investigation on Discharge Polarity Effect of CF3I/N2 Gas Mixtures Under Lightning Impulse
摘要
Abstract
SF6 gas has a very strong greenhouse effect,the search for new alternative gas to SF6 has become an urgent case for researchers.This paper studies the discharge characteristics of CF31/N2 gas mixture with needle-plane and sphere-plane electrode under standard lightning impulse,which is important for CF3I and its mixtures applied in electrical equipment.The results show that the discharge characteristics of CF3I/N2 gas mixtures present an significantly polarity effect both in highly non-uniform electric field and slightly non-uniform electric field.When the electrode gap is 5ram,the polarity reversal phenomenon appeared with the increase of gas pressure.The analysis shows that CF3I/N2 gas mixture appears polarity effect and polarity reversal phenomenon in the short gap is due to the migration and interaction of space charge between electrode gaps.Electrical equipment using CF3I/N2 mixtures as insulation medium should seriously consider about polarity effect and polar reversal phenomenon.关键词
CF3I/N2混合气体/液化温度/雷电冲击/极性效应/空间电荷Key words
CF3I/N2 gas mixtures/liquefaction temperature/lightning impulse/polarity effect/space charge分类
信息技术与安全科学引用本文复制引用
赵谡,肖登明,张辉,邓云坤..冲击电压下CF3I/N2混合气体放电极性效应研究[J].中国电机工程学报,2017,37(12):3636-3642,7.基金项目
国家自然科学基金项目(51337006) （51337006）
中国博士后科学基金(2016M602728) （2016M602728）
南方电网公司科技项目(YNKJXM20160081).Project Supported by National Natural Science Foundation of China(51337006) （YNKJXM20160081）
China Postdoctoral Science Foundation (2016M602728) （2016M602728）
Science and Technology Project of China Southern Power Grid(YNKJXM20160081). （YNKJXM20160081）
