Property of current in outer semiconducting layer of cable winding transformer

被引：0

作者：

Lü, Liang ^{[1
]}

Lei, Lang ^{[2
]}

Zhang, Jin ^{[2
]}

Guo, Lei ^{[1
]}

Li, Yanming ^{[2
]}

机构：

[1] Shanxi Electric Power Research Institute, Xi'an 710054, China

[2] Xi'an Jiaotong University, Xi'an 710049, China

来源：

Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2009年 / 24卷 / 05期

关键词：

Cables - Power quality - Capacitance - Finite element method - Transients - Winding;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

When voltage with high frequency is applied to the core of winding, voltage and current with same frequency will occur in the outer semiconducting layer, as there is no copper outer shield in the XLPE cable of the winding. To study the relations between current in the outer semiconducting layer and voltage and current in the core, finite element method is used to calculate the eddy current in the outer semiconducting layer firstly, and then a circuit model of it is studied. By comparing with measurements, it is found that the current flowing in it is from coupling between core and semiconducting layer. And in this paper, the effect of resistivity of semiconducting layer on the amplitude of current in it is studied.

引用

页码：40 / 45

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