Anisotropy of specific total loss components in Goss textured electrical steel

摘要

Electrical steel (ES) is the optimal material for magnetic cores of large electrical machines and transformers. This material is graded according to the value of its specific total loss (P_s)- Due to Goss texture the ES displays anisotropy of magnetic properties. The anisotropy is also crucial in the selection for applications of ES. This paper presents the anisotropy behaviour of P_s loss components in Goss oriented ES. The analysis shows that similarity between hysteresis P_h and excess P_(ex) loss components differs from grade to grade of grain oriented ES. The similarity is dependent on many factors such as on chemical composition or thickness. The presented paper can be helpful in better understanding of loss mechanism in ES and improvement of directional model of P_s loss.