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高压电器  2015 

高压绝缘套管电场分析及结构优化

, PP. 7-12

Keywords: 高压,绝缘,套管,电场分布,结构优化

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Abstract:

高压绝缘套管是气体绝缘金属封闭开关设备(GIS)高电压与地电位绝缘的重要元件,其均匀的电场分布与合理的结构是GIS安全运行的保证。笔者针对252kVGIS高压绝缘套管结构设计与电场分布问题,以电磁场理论为基础,通过建立高压绝缘套管电场分布计算的数学模型和基于ANSYS软件的套管电场分布的仿真分析,对套管接地内屏蔽附近电场分布对套管外表面局部区域电场强度的影响进行研究,并据此对套管内屏蔽进行结构设计。套管内屏蔽结构参数的优化结果表明,套管外表面的最大切向场强降低了约29%,使其绝缘性能有了明显的提高。

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