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Characterization and Modeling of a Current Transformer Working Under Thermal Stress

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4 Author(s)
Bui, A.T. ; Lab. AMPERE, Univ. de Lyon, Villeurbanne, France ; Sixdenier, F. ; Morel, L. ; Burais, N.

This paper focuses on the thermal stress on magnetic materials under Curie temperature. The influence of the temperature on static and dynamic major B(H) loops is studied. Then, the Jiles-Atherton (JA) model and “flux tube” model are used, in order to reproduce the static and dynamic hysteresis loops for a NiFe (80/20) alloy. For each temperature, the six model parameters are optimized from measurements. Finally, these parameters are used in order to reproduce the behavior of a current transformer. The simulation results are compared with measurements and discussed.

Published in:

Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 10 )

Date of Publication:

Oct. 2012

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