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

机译：基于空间充电测量的交流电力电缆绝缘老化的诊断标记

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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 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.

机译：本文讨论了从高压XLPE电缆切割的样品上进行的空间电荷测量结果。该标本在实验室下在电气，热电和热电应力下老化，各种时间，目的是寻找从空间充电数据得出的诊断指标。结果表明，从空间电荷测量中提取的两种数量，即空间电荷累积的阈值和表观，陷阱控制的迁移率与老化时间和应力显示出良好的相关性，从而为老化诊断和寿命估算提供有趣的标志物。衰老模型是建议与老化时间的关联标记。

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《IEEE International Symposium on Electrical Insulation》|2002年||共4页
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G. C. Montanari; D. Fabiani; M. Melloni; F. Palmieri;
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Diagnostic markers for ac power cable insulation aging based on space charge measurements

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