Research of Partial Discharges Intensity Voltage Dependence in XLPE-Insulated Cables

2020 International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE) Pub Date : 2020-03-01 DOI:10.1109/REEPE49198.2020.9059155

D. Polyakov, I. V. Komarov, N. Tereschenko, K. I. Nikitin, U. V. Polyakova

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引用次数: 1

Abstract

This paper describes a study of partial discharges as an insulation degradation mechanism. Some known insulation aging mathematical models are described. Since these models use partial discharges power dependence on voltage, it is studied. Experimental research of partial discharges characteristics dependence is performed. The 10 kV single core XLPE-insulated cable termination defect is used as a source of partial discharges. PD characteristics were measured in the range from 8 to 15 kV. The obtained results showed a presence of a harmful defect in the cable. PD at 8 kV were found insufficient. However, 10 kV voltage caused the occurrence of considerable partial discharges. PD at 15 kV had the most destructive effect on the insulating material. The obtained PD power voltage dependence curve correlates with the known research results. However, the obtained characteristic can change in time because of the defect growth, so this process has to be further studied.

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交联聚乙烯绝缘电缆局部放电强度电压依赖性研究

本文描述了局部放电作为绝缘退化机制的研究。介绍了一些已知的绝缘老化数学模型。由于这些模型采用了局部放电功率对电压的依赖关系，因此对其进行了研究。对局部放电特性的依赖性进行了实验研究。10kv单芯交联聚乙烯绝缘电缆终端缺陷被用作局部放电源。在8 ~ 15 kV范围内测量了PD特性。所得结果表明，电缆中存在有害缺陷。发现8kv的PD不足。然而，10kv电压引起了相当大的局部放电的发生。15kv的放电对绝缘材料的破坏作用最大。所得的局部放电功率电压依赖曲线与已知的研究结果相吻合。然而，由于缺陷的生长，所获得的特性会随时间发生变化，因此这一过程还需要进一步研究。

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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2020 International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)

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