交联聚乙烯电力电缆中电气树的局部放电特性

2011 Electrical Insulation Conference (EIC). Pub Date : 2011-06-05 DOI:10.1109/EIC.2011.5996123

Tianchun Zhou, Lijun Yang, R. Liao, Quan Zhou, Di Ye

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引用次数: 1

摘要

研究了电树的萌发过程和PD特性，提出了一种新的电树生长状态识别方法。实验结果表明，电树PD能量主要集中在5MHz ~ 7.5MHz的−40°~ 90°和120°~ 250°，7.5MHz ~ 10MHz的−20°~ 90°和150 ~ 250°。随着电子树的密集增加，在7.5MHz ~ 10MHz频率处PD能量会增加。在电树的第一个发展阶段，PD能量主要位于5MHz ~ 7.5MHz的频率，当电树发展到下一个阶段时，在7.5MHz ~ 10MHz的频率上发现更多的PD能量。

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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Partial discharge characteristics of electrical trees in XLPE power cables

This paper studies the initiation process and the PD characteristics of electrical trees, and proposes a new method to recognize the growth state of electrical trees. The experiment result show that the electrical trees PD energy mainly concentrated in the −40°∼90° and 120°∼250° of 5MHz∼7.5MHz, −20°∼90° and 150∼250° of 7.5MHz∼10MHz. With the dense increase of the electrical trees, the more PD energy will be found in the frequency 7.5MHz∼10MHz. At the first development stage of electrical trees, the PD energy mainly located at the frequency 5MHz∼7.5MHz, when electrical trees develop to the next stage, the more PD energy will be found at the frequency 7.5MHz∼10MHz.

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2011 Electrical Insulation Conference (EIC).

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