NDLI: Apparatus for on-line monitoring of transformer winding deformation using leakage inductance identification

Content Provider	IEEE Xplore Digital Library
Author	Yao Zhoufei Yin Yi Wang Zhihao Li Zhe Wang Qiaohua
Copyright Year	2012
Description	Author affiliation: Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai, China (Yao Zhoufei; Yin Yi; Wang Zhihao; Li Zhe; Wang Qiaohua)
Abstract	Windings of power transformer may suffer short circuit currents or mechanical forces, which lead to different winding displacements such as axial displacements and radial displacements. Measurement of leakage inductance is one of the most effective methods to identify these mechanical displacements. In this paper, an on-line detection system based on WinCE platform for transformer winding deformation is proposed. Based on the equivalent circuit of the transformer for low frequencies, the formula to calculate the leakage inductance on-line is derived. In practice, using the signals gained from the voltage transformers and current transformers, with the help of proper signal filtering method, leakage inductance is calculated in our program. Both the signal processing theory and the algorithm of online leakage inductance estimation are presented. To evaluate the feasibility of the detection system, experiments with and without winding displacements were made using a small transformer and the results of on-line detection were discussed.
Starting Page	613
Ending Page	616
File Size	453296
Page Count	4
File Format	PDF
ISBN	9781467310192
e-ISBN	9781467310208
DOI	10.1109/CMD.2012.6416219
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-23
Publisher Place	Indonesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decision support systems Condition monitoring Conferences WinCE leakage inductance winding deformation on-line monitoring
Content Type	Text
Resource Type	Article

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