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Finite element modeling of power transformer for short-circuit electromagnetic force analysis

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5 Author(s)
Hyun-Mo Ahn ; Dept. of Electr. Eng., Dong-A Univ., Busan, South Korea ; Byuk-Jin Lee ; Cherl-Jin Kim ; Heung-Kyo Shin
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In this paper, we proposed the finite element modeling for short-circuit electromagnetic force analysis of a power transformer. In order to improve the accuracy of analysis, we modeled HV winding and LV winding as similar as those windings of a model transformer. Magnetic vector potential and leakage flux due to the short-circuit currents are solved from finite element method base on magnetic field. The shortcircuit electromagnetic forces comprised of radial and axial direction are calculated by interaction of the short-circuit currents and the leakage flux.

Published in:

Electrical Machines and Systems (ICEMS), 2012 15th International Conference on

Date of Conference:

21-24 Oct. 2012