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The separation of eddy current and hysteresis losses in transformer cores is obtained using the two-temperatures and the two-frequency methods. Loss calculations for six ratings using the voltage test waveform ratio are included to compare and analyze results. A brief description of the test methodologies, that are easy to apply, is given. An example of the application of the methodologies, the obtained...
This paper investigates the effect of dc bias conditions on ferrite core losses. A technique for measuring core losses under dc bias conditions and its circuitry are also described. Measured core losses of MMG F49 material under dc bias conditions are presented to show that the core losses increase significantly under dc bias conditions. Results are also presented showing the effect of temperature...
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