Identification of winding faults in power transformers by Low Voltage Impulse test and neutral current method using wavelet transform approach

被引：0

作者：

Kumar, NP ^{[1
]}

Amarnath, J ^{[1
]}

Shrivastava, KD ^{[1
]}

Singh, BP ^{[1
]}

机构：

[1] RVR & JC Coll Engn, Guntur, Andhra Pradesh, India

来源：

2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena | 2005年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents the application of wavelets for the detection of minor faults in the HV winding of a power transformer by analyzing the impulse voltage and neutral current during the Low Voltage Impulse test conducted on a HV winding of the power transformer. Effectiveness and efficiency of wavelet transforms in signal processing and differentiating incipient faults from electrical transients over other Frequency Response Analysis(FRA) methods like transfer function(TF) method and Fourier transforms(FT) approach are discussed. The experimental results on the HV winding of a 61MVA, 11kV/230kV power transformer are also presented.

引用

页码：140 / 143

页数：4

共 42 条

[1] Detection of Internal Winding Faults in Power Transformers Based on Graphical Characteristics of Voltage and Current
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