Application of extension method to fault diagnosis of transformer

被引：0

作者：

邓宏贵 ^{[1
]}

曹建 ^{[1
]}

罗安 ^{[2
]}

夏向阳 ^{[3
]}

机构：

[1] School of Physics Science and Technology,Central South University

[2] School of Electrical and Information Engineering,Hunan University

[3] School of Electrical and Information Engineering,University of Theory and Technology

来源：

Journal of Central South University | 2007年 / 01期

关键词：

power transformer; fault diagnosis; extension theory; matter-element model; dependent function;

D O I：

暂无

中图分类号：

TM46 [变流器];

学科分类号：

080801 ;

摘要：

A novel extension diagnosis method was proposed for enhancing the diagnosis ability of the conventional dissolved gas analysis. Based on the extension theory a matter-element model was established for qualitatively and quantitatively describing the fault diagnosis problem of power transformers. The degree of relation based on the dependent functions was employed to determine the nature and the grade of the faults in a transformer system. And the proposed method was verified with the experimental data. The results show that accuracy rate of the diagnosis method exceeds 90% and two kinds of faults can be detected at the same time.

引用

页码：88 / 93

页数：6

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