Online Detecting Method for Transformer Winding Deformation Based on Current Extraction

被引：0

作者：

Zhang Ning ^{[1
]}

Zhang Meng ^{[1
]}

Zhang Yuan-yuan ^{[1
]}

Zhu Yong-li ^{[1
]}

机构：

[1] North China Elect Power Univ, Sch Elect & Elect Engn, Beijing, Peoples R China

来源：

PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON AUTOMATION, MECHANICAL CONTROL AND COMPUTATIONAL ENGINEERING | 2015年 / 124卷

关键词：

Transformer winding deformation; Online detection; Higher harmonic; FRA;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Transformer winding deformation is common in transformer faults. Offline monitoring is mostly used in diagnosis of winding deformation, which has some limitations. So an online detecting method based on extraction of current is proposed. The method increases the higher harmonic of the current that flows into the input end of transformer appropriately. This higher harmonic is regarded as sweep frequency source. Current flowing into the input and outlet end of transformer is measured. And high frequency components are extracted to structure response curves. Transformer winding deformation is diagnosed through the analysis of response curves. The simulation results showed that winding deformation can be reflected effectively in this method.

引用

页码：1938 / 1943

页数：6

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