Enter the Wavelength, Frequency, Medium, and Angle of Incidence into the Wavelength & Frequency Calculator to get the Wave Speed, Period, Energy, Refraction Angle, and Wave Properties across the EM spectrum.
Total Core Loss
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Hysteresis Loss
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Eddy Current Loss
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Loss Density
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Core Volume
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Hysteresis losses occur due to the cyclic magnetization and demagnetization of the core material, proportional to frequency. Eddy current losses are caused by circulating currents induced in the conductive core material, proportional to the square of frequency.
Thinner laminations reduce eddy current losses by limiting the path for circulating currents. However, thinner laminations increase manufacturing costs and may require more insulation material.
For power transformers, Bmax typically ranges from 1.0 to 1.8 Tesla. Higher flux densities allow smaller cores but increase losses and may lead to saturation.
These coefficients are material-specific and usually provided by the core material manufacturer. They can also be determined experimentally through loss measurements at different frequencies and flux densities.
Lamination breaks up the eddy current paths, significantly reducing eddy current losses. Each thin lamination is insulated from adjacent ones to prevent current flow between layers.
Hysteresis losses increase linearly with frequency, while eddy current losses increase with the square of frequency. At higher frequencies, eddy current losses become dominant.
Effective core area is the cross-sectional area of the magnetic path, while effective path length is the average length of the magnetic flux path through the core. These depend on the core geometry and design.