摘要
在人工气候室模拟试验了覆冰光滑支柱绝缘子的直流放电特性。结果表明,有、无冰带其闪络电压UF差异较大,覆冰水电导率Γ和气压亦有较大影响,Γ越高UF越低;随着气压的下降,UF和临界闪络电流明显下降。
Based on the DC discharge experiment in the artificial climate chamber, the paper presents the DC discharge performance of iced smooth cylindrical post insulators. The test results show that the presence or absence of free-ice-band has a remarkable influence on the flashover voltage of the test sample. Atmospheric pressure and freezing-water conductivity have effects on its flashover voltage, the higher the freezing-water conductivity is, the lower the flashover voltage will be. The flashover voltage and critical flashover current decreases with the decrease of air pressur~
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2006年第1期8-10,共3页
High Voltage Engineering
基金
国家自然科学基金重大研究计划项目资助(90210026)
