| 覆冰程度对瓷和玻璃绝缘子直流覆冰闪络特性的影响 |
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| 引用本文： | 文习山,蒋日坤,蒋兴良,毕茂强,申萌. 覆冰程度对瓷和玻璃绝缘子直流覆冰闪络特性的影响[J]. 高电压技术, 2010, 36(3): 565-571 |
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| 作者姓名： | 文习山 蒋日坤 蒋兴良 毕茂强 申萌 |
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| 作者单位： | 武汉大学电气工程学院,武汉,430072;重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆,400044;西安高压电器研究所,西安,710077 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(2009CB724500)~~ |
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| 摘 要： | 在人工气候室内模拟覆冰气象条件,对2种同吨位的瓷绝缘子XZP-210和玻璃绝缘子LXZP-210进行了覆冰直流闪络实验研究。分析实验结果得出2种绝缘子在不同覆冰程度和不同污秽下覆冰直流闪络特性,即最低冰闪电压值Ufmin随覆冰厚度的增加而呈幂函数下降关系,与覆冰质量m呈负指数函数关系,与电导率γ20呈负幂函数关系;导出旋转监测铜管覆冰厚度d和绝缘子串覆冰质量m两种表征覆冰程度参量的等价性关系式d=De-gW;最后提出了绝缘子串直流最低冰闪电压Ufmin的一般式Ufmin=Eγ2-0md-be-fW。
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| 关 键 词： | 绝缘子 直流闪络 电压 污秽 冰厚 覆冰质量 |
Influence of Iced Level of Porcelain and Glass Insulators on DC Flashover Performance |
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| WEN Xi-shan , JIANG Ri-kun , JIANG Xing-liang , BI Mao-qiang , SHEN Meng. Influence of Iced Level of Porcelain and Glass Insulators on DC Flashover Performance[J]. High Voltage Engineering, 2010, 36(3): 565-571 |
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| Authors: | WEN Xi-shan JIANG Ri-kun JIANG Xing-liang BI Mao-qiang SHEN Meng |
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| Affiliation: | 1.School of Electrical Engineering;Wuhan University;Wuhan 430072;China;2.State Key Laboratory of Power Transmission Equipment & System Security and New Technology;Chongqing University;Chongqing 400044;3.Xi'an High Voltage Apparatus Research Institute;Xi'an 710077;China |
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| Abstract: | The DC flashover performances under the different climate conditions simulated in the artificial climate chamber were experimentally investigated on two kinds of ice-coated insulators with the same tonnage,porcelain XZP-210 insulators and glass LXZP-210 insulators.Based on the DC flashover test results in the artificial climate chamber,the effect of ice's extent and pollution on the DC flashover performance of iced-insulators was analyzed.The results show that the minimum DC flashover voltages(U_fmin) will ... |
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| Keywords: | insulators DC flashover voltage pollution icing thickness icing weight |
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