The power losses in magnetic laminations—the influence of the frequency and DC-bias magnetisation

The usual separation of the loss components is based upon the assumption that the hysteresis losses persist as a constant contribution multiplied by the frequency value. The question arises if this assumption is correct. The author of this paper presents the cases in which this way of treating the problem proves to be wrong. Another area of investigations concerns the works under the DC-bias field conditions. The conclusions, coming directly from described cases, permit to formulate the calculation algorithm of the power losses, under deformed magnetic flux conditions.