Diagnostics of Transformer Windings Deformation Based on Transfer Function

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 288)


The deformation of transformer windings after a short circuit was analyzed by studying the criterion for the transfer function. First, the lumped parameter method was used to establish the equivalent circuit of transformer winding, the losses, and mutual inductance was added in it. Second, a single-layer continuous transformer winding was used as an example to calculate the changes in equivalent circuit parameters due to the changes of the structure and geometry size of the transformer winding, when the transformer windings occurred different forms and degrees deformation. Finally, the common axial and radial deformations of transformer winding was studied to calculate the transfer function of the deformed winding, with the degree of winding deformation judged by the mean square root of the spectrum difference, a diagnostic criterion was given to judge the deformation degree.


Transformer Winding deformation Transfer function Deformation diagnostic 



This work is supported by basic scientific research funded projects of Beijing Jiao Tong University (No.2012JBM100).


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Beijing Jiaotong UniversityBeijingChina

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