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A Free Vibration Analysis of Helical Windings of Power Transformer by Pseudospectral Method

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3 Author(s)
Pan Seok Shin ; Dept. of Electr. Eng., Hongik Univ., Chungnam ; Jinnee Lee ; Jung Woo Ha

This paper proposes a new use of the pseudospectral method to the eigenvalue analysis of the power transformer winding. The analysis method is based on the Chebyshev polynomials and collocated at the Gauss-Labatto collocation points. To verify the method, a helical-type winding of a power transformer is analyzed and numerical examples are provided for various boundary conditions. The computed results are in good agreement with finite-element method solutions. It shows that the method is straightforward and it has novel advantages in its conceptual simplicity

Published in:

Magnetics, IEEE Transactions on  (Volume:43 ,  Issue: 6 )

Date of Publication:

June 2007

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