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Detection of minor winding deformation fault in high frequency range for power transformer

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3 Author(s)
Tang, W.H. ; Dept. of Electr. Eng. & Electron., Univ. of Liverpool, Liverpool, UK ; Shintemirov, A. ; Wu, Q.H.

This paper presents a simplified distributed parameter model for minor winding deformation fault analysis of power transformers on the basis of frequency response analysis (FRA). The FRA data of an experimental transformer is employed as a reference trace, which are compared with the simulations of the simplified distributed parameter model concerning minor winding deformation faults. In order to perform quantitative analysis when a deformation fault occurs, three statistical indicators are used to analyze the FRA simulation data. It is suggested in the results that minor winding deformation faults can be detected at the frequency range above 1 MHz.

Published in:

Power and Energy Society General Meeting, 2010 IEEE

Date of Conference:

25-29 July 2010

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