| 均压环安装错误对电场分布的影响 |
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| 引用本文： | 卢明,阎东,杨庆.均压环安装错误对电场分布的影响[J].电瓷避雷器,2010(2). |
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| 作者姓名： | 卢明 阎东 杨庆 |
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| 作者单位： | 1. 河南电力试验研究院,郑州,450052
2. 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,400030 |
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| 基金项目： | 河南省电力公司科研项目 |
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| 摘 要： | 复合绝缘子的结构特点导致其电位分布不均匀,两端金具附近具有强电场区。某供电公司因为施工中的错误安装,导致110 kV的复合绝缘子均压环安装在端部护套上,运行中发生绝缘子均压环对端部金具的放电。笔者对这种错误安装均压环的110 kV复合绝缘子电场进行了计算,结果表明采用错误的安装方式时,电场畸变较为严重,其最大电场远远超过了硅橡胶表面能承受的最大场强,导致出现放电烧蚀现象,强电场加速了复合绝缘子有机硅橡胶的老化。
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| 关 键 词： | 复合绝缘子 均压环 安装错误 电场分布 |
The Effect of Error Installation of Grading Ring on Electric Field Distributions |
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| LU Ming,YAN Dong,YANG Qing.The Effect of Error Installation of Grading Ring on Electric Field Distributions[J].Insulators and Surge Arresters,2010(2). |
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| Authors: | LU Ming YAN Dong YANG Qing |
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| Affiliation: | LU Ming1,YAN Dong1,YANG Qing2(1.Henan Electric Power Research Institute,Zhengzhou 450052,China,2.The Key Laboratory of High Voltage Engineering and Electrical New Technology of the Ministry of Education,Chongqing University,Chongqing 400030,China) |
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| Abstract: | The structural characteristics of composite insulators lead to uneven distribution of its potential,there are strong electric field area near both ends of fittings.Because of the error installtion of a power supply company,leading to the grading ring of 110 kV composite insulators installed on its end housing,discharge took place from insulator grading rings to end fittings.Electric field of 110 kV composite insulator was calculated about the mistaken installed grading ring.The results show that by the wron... |
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| Keywords: | composite insulator grading ring error installation electric field distribution |
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