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电网技术  2010 

云雾气象条件下绝缘子污秽的微波辐射特性

, PP. 175-180

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Abstract:

染污绝缘子在雾、露、毛毛雨等不利气象条件下可能发生污秽闪络。为研究云雾气象条件对绝缘子污秽物微波辐射特性的影响,选择了XP-70瓷绝缘子为试品,在不同的气象条件下对污秽绝缘子进行试验。试验结果表明,云雾气象条件下,绝缘子辐射的天线温度与等值附盐密度为幂函数的关系,且等值盐密对天线温度影响的特征指数保持不变;在一定的等值盐密与等值附灰密度条件下,天线温度随着大气湿度的增加而减小,天线温度试验测量结果与理论计算结果具有较好的一致性。

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