3D Field Calculations of the Modular Transformer Heating under High Frequency Operation

Tomczuk B., Koteras D., Waindok A.

Eddy current losses in the transformer cores under high frequency operation have been computed, and 3D magnetic and temperature fields have been determined with FEM. The heating of the cores and rise in temperature of the windings (vs.time) have been calculated for the two different transformer constructions. Due to brevity of the short version, the results for one of them are presented in this paper. They have been compared with that ones from our prototype tests and a good agreement has been obtained.

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