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电网技术  2010 

在输电线路短路磁影响下钢轨入地电流产生的地电位计算方法

, PP. 31-33

Keywords: 泄漏电流,地电位,跨步电压

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Abstract:

以往计算跨步电压时没有考虑钢轨入地电流在钢轨附近产生的地电位升高,使跨步电压计算结果偏大10%。文章经过理论推导,给出了钢轨附近地电位升高的近似计算模型,从而得到钢轨与其附近任意点的电位差,以及从轨顶到0.8m处跨步电压的简化计算方法。

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