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Frequency response analysis of power transformer winding deformation based on a hybrid model

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

This paper uses a hybrid model of a disc-type transformer winding, which is based on traveling wave and multi-conductor transmission line (MTL) theories, for frequency response analysis (FRA) of winding deformation and measurement parameter influence. Two types of deformation have been simulated by changing the values of the corresponding parameters and the frequency range of FRA is extended to 10 MHz. Various scenarios have been included in the simulation studies, which show that winding deformation can be reflected in frequency response by changing certain parameters of the hybrid model. Simulation results also suggest that the two types of change can be more easily detected in different frequency ranges, respectively.

Published in:

Power Engineering and Automation Conference (PEAM), 2011 IEEE  (Volume:3 )

Date of Conference:

8-9 Sept. 2011

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