高海拔地区室外绝缘子的选择研究

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2003-10-19 DOI:10.1109/CEIDP.2003.1254875

W. Shi, Z. Guan, L.M. Wang, J. Zhou

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引用次数: 7

摘要

近年来，中国大力推进西部大开发。作为开发的一部分，中国西部高海拔地区已经或正在计划修建几条超高压输电线路。绝缘子的污闪不仅取决于污染的严重程度和类型，而且还取决于这些绝缘子所处的高度。在高海拔地区，压力或空气密度降低，再加上光污染，会降低闪络电压。本文从理论和实验两方面分析了低压对输电线路绝缘特性的影响，并对青藏铁路110kv交流输电线路室外绝缘子的选用提出了建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A study on the selection of outdoor insulators used in high altitude areas

In recent years, large-scale development of China's western region has been vigorously promoted. As part of the development, several very high voltage transmission lines have been or are planning to be built in China's western region with a high altitude. The contamination flashover of insulators depends not only on the severity and type of contamination, but also on the altitude at which these insulators are situated. Reduced pressure or air density combined with light contamination at high altitudes decrease the flashover voltage. This paper analyzes the affects of low air pressure on the insulation characters of the transmission lines theoretically and experimentally, and a suggestion is given for the selection of outdoor insulator that will be used in the 110 kV AC power transmission line along Qinghai-Tibet railway.

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2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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