变形电压作用下XLPE中树形现象的实验研究

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2003-10-19 DOI:10.1109/CEIDP.2003.1254926

F. Guastavino, L. Centurioni, G. Coletti, A. Dardano, E. Torello

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引用次数: 17

摘要

本文研究了电压波形谐波含量对交联聚乙烯(XLPE)电树生长的影响。特别地，测量了具有点平面电极结构的XLPE试样在含有3/sup /、5/sup /和7/sup /谐波的不同畸变电压下的寿命。提出了一种基于记录持续时间与外加电压最大幅值之间相关性的寿命预测模型。该模型的结果与所调查的案例非常吻合。数字图像采集允许监测树木生长，以便检查灌木或树枝类型的树木在测试期间是否生长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An experimental study about the treeing phenomena in XLPE subjected to distorted voltages

In this work the influence of harmonic content of the voltage waveform on electrical treeing growth in XLPE (cross-linked polyethylene) is investigated. In particular the lifetimes of XLPE specimens, having a point plane electrode configuration, subjected to different distorted voltages containing 3/sup rd/, 5/sup th/ and 7/sup th/ harmonics, are measured. A lifetime prediction model based upon the correlation between recorded durations and the maximum amplitude of the applied voltages is proposed. The model resulted well suited for the investigated cases. Digital images acquisition allowed to monitor treeing growth so to check wether bush or branch type of treeing had been growing during the tests.

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2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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