Influence of internal discharges in a cavity within polymeric insulating material caused by partial discharge mechanisms

T. Tanmaneeprasert, P. Lewin, J. Hunter
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引用次数: 6

Abstract

This paper presents the time varying characteristics of partial discharge (PD) activity in a cylindrical cavity within polymeric insulation. The samples are produced using a multiple layer technique with polyethylene terephthalate (PET) selected as the solid dielectric. The results highlight the degradation process of the cavity surface through the exposure to a HV AC electric field and the impact of this on PD activity. The variation in sample conditions are linked to PD analysis in each case with one sample having exhibited electrical tree growth. The morphological surface and chemical composites of the test samples are analysed using Raman spectroscopy and an optical microscope.
局部放电机制对聚合物绝缘材料内腔内放电的影响
本文研究了聚合物绝缘体圆柱形腔内局部放电活度的时变特性。样品采用多层技术生产,选择聚对苯二甲酸乙二醇酯(PET)作为固体介电介质。结果强调了暴露在高压交流电场下腔表面的降解过程及其对PD活性的影响。样品条件的变化与PD分析有关,在每种情况下,一个样品都表现出电树生长。利用拉曼光谱和光学显微镜对样品的形貌和化学成分进行了分析。
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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