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降雨对短空气间隙直流放电的影响分析

DOI: 10.13336/j.1003-6520.hve.2015.07.032, PP. 2350-2355

Keywords: 降雨强度,雨水电导率,环境湿度,环境温度,空气间隙,直流放电

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Abstract:

为研究降雨对短空气间隙直流放电的影响规律,对棒-板短空气间隙正极性直流放电特性进行了大量试验研究。在此基础上,深入分析及仿真研究了环境湿度、环境温度、雨水电导率及降雨强度等因素对短空气间隙直流放电电压的影响规律及其机理。结果表明随着降雨强度增大,棒-板间隙中雨滴半径和数量增加,间隙最大电场强度随之增加,从而导致间隙正极性直流放电电压降低;随着雨水电导率增加或环境温度降低,间隙正极性直流放电电压降低;降雨强度对棒-板间隙正极性直流放电电压的影响程度比雨水电导率和环境温度大。

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