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Radial Deformation Emplacement in Power Transformers Using Long Short-Term Memory Networks

2020-12-13 06:55:05
Arash Moradzadeh, Kazem Pourhossein, Behnam Mohammadi-Ivatloo, Tohid Khalili, Ali Bidram
arXiv_CV
             
Abstract

A power transformer winding is usually subject to mechanical stress and tension because of improper transportation or operation. Radial deformation (RD) is an example of mechanical stress that can impact power transformer operation through short circuit faults and insulation damages. Frequency response analysis (FRA) is a well-known method to diagnose mechanical defects in transformers. Despite the precision of FRA, the interpretation of the calculated frequency response curves is not straightforward and requires complex calculations. In this paper, a deep learning algorithm called long short-term memory (LSTM) is used as a feature extraction technique to locate RD faults in their early stages. The experimental results verify the effectiveness of the proposed method in the diagnosis and locating of RD defects.

Abstract (translated)

URL

https://arxiv.org/abs/2012.06982

PDF

https://arxiv.org/pdf/2012.06982.pdf

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