| 光滑支柱绝缘子覆冰直流放电特性试验研究 |
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| 引用本文： | 苑吉河,蒋兴良,张志劲,舒立春,孙才新. 光滑支柱绝缘子覆冰直流放电特性试验研究[J]. 高电压技术, 2006, 32(1): 8-10 |
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| 作者姓名： | 苑吉河 蒋兴良 张志劲 舒立春 孙才新 |
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| 作者单位： | 重庆大学高电压与电工新技术教育部重点实验室,重庆,400044 |
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| 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。
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| 关 键 词： | 支柱绝缘子 覆冰 直流 放电 |
| 文章编号： | 1003-6520（2006）01-0008-03 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004-12-20 |
DC Discharge Performance of Cylindrical Post Insulators Covered with Ice |
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| YUAN Jihe,JIANG Xingliang,ZHANG Zhijin,SHU Lichun,SUN Caixin. DC Discharge Performance of Cylindrical Post Insulators Covered with Ice[J]. High Voltage Engineering, 2006, 32(1): 8-10 |
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| Authors: | YUAN Jihe JIANG Xingliang ZHANG Zhijin SHU Lichun SUN Caixin |
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| Affiliation: | The Key I.aboratory of High Voltage Engineering and Electrical New Technology, Ministry of Education, Chongqing University, Chongqing 400044, China |
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| Abstract: | 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 pressure. |
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| Keywords: | post insulator icing DC discharge |
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