对大型旋转机械高压绝缘电老化状况的整体和局部表征做出贡献

Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics Pub Date : 1989-07-03 DOI:10.1109/ICSD.1989.69267

J. Dacier, R. Goffaux

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引用次数: 4

摘要

作者提出了两种评估大型旋转机械高压绝缘电气状况的新方法。第一种方法是在导电指数的基础上考虑总体情况，它利用离子对高压绝缘电导率的贡献。第二种是用参数V/sub BF/定义的局部方面，它与云母/树脂或微孔/树脂界面上的快速离子浓度有关。两者都是基于对高压绝缘缓慢电极化的物理机制和导致介质击穿的过程的分析。

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Contribution to the overall and local characterization of the condition of electric ageing of HV insulation in large rotation machines

The authors presents two novel approaches to the assessment of the electrical condition of the HV (high-voltage) insulation in large rotating machines. The first considers the overall condition on the basis of the conduction index, which makes use of the ionic contribution to the electrical conductivity of the HV insulation. The second is concerned with the local aspect defined in terms of a parameter V/sub BF/, which is associated with the concentration of rapid ions at mica/resin or microvoid/resin interfaces. Both are based on an analysis of the physical mechanisms responsible for the slow electrical polarization of the HV insulation and the processes leading up to dielectric breakdown.<>

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Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics

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