基于空间电荷测量的交流电缆绝缘老化诊断标志

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI:10.1109/ELINSL.2002.995975

G. Montanari, Davide Fabiani, M. Melloni, F. Palmieri

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引用次数: 6

摘要

本文讨论了高压交联聚乙烯电缆截割试样的空间电荷测量结果。在实验室中对试样进行不同时间的电、热、热电应力老化，目的是寻找由空间电荷数据得出的诊断指标。结果表明，从空间电荷测量中提取的空间电荷积累阈值和圈闭控制的表观迁移率与老化时间和应力具有良好的相关性，为老化诊断和寿命估计提供了有意义的指标。提出了将标记物与衰老时间相关联的衰老模型。

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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Diagnostic markers for AC power cable insulation aging based on space charge measurements

The results of space charge measurements carried out on specimens cut from high-voltage XLPE cables are discussed in this paper. The specimens were aged in the laboratory under electrical, thermal and thermoelectrical stresses, for various times, with the purpose of searching for diagnostic indicators derived from space charge data. It is shown that two quantities extracted from space charge measurements, that is, the threshold for space charge accumulation and the apparent, trap-controlled, mobility display a good correlation with aging time and stress, thus providing interesting markers for aging diagnosis and life estimation. Aging models are proposed correlating markers with aging time.

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Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)

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