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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers & Short Notes >A Flashover Prediction Method for Contaminated Insulators using a Stochastic Analysis of Leakage Current
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A Flashover Prediction Method for Contaminated Insulators using a Stochastic Analysis of Leakage Current

机译:泄漏电流随机分析的绝缘子闪络预测方法

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摘要

In this paper, we present the results of a new stochastic analysis of the leakage current on contaminated insulators under salt fog conditions. The stochastic analysis of the leakage current was conducted using a Hilbert transform and the level crossing rate. The Hilbert transform is used for the leakage current envelope, while the level crossing rate is used to convert the upper envelope into a cdf. Using a new defined weighting factor, the resulting cdfs show a probability that the stages until flashover can be discriminated from each other. Therefore, the proposed method is effective for flashover prediction and for monitoring the contamination conditions of outdoor insulators.
机译:在本文中,我们给出了盐雾条件下被污染绝缘子泄漏电流的新随机分析结果。使用希尔伯特变换和电平交叉速率对泄漏电流进行了随机分析。希尔伯特变换用于漏电流包络,而电平交叉速率用于将上包络转换为cdf。使用新定义的加权因子,所得的cdfs显示出可以将闪络之前的各个阶段区分开的可能性。因此,所提出的方法对于闪络预测和监测室外绝缘子的污染状况是有效的。

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