Abstract
Non- and grain-oriented electrical steels were tested in an Epstein frame. The materials were magnetised under sinusoidal flux waveform at 20, 50 and 150 Hz. Loss was separated into hysteresis, eddy current and excess loss components. The relationship between the hysteresis angle, additional loss factor and the magnetocrystalline anisotropy was shown. It was found that both hysteresis and additional losses are strongly dependent on the texture showing opposite trends as the flux density increases. The aim of the present paper is to provide a contribution to the understanding of magnetic losses in soft metallic ferromagnetic materials.
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