Magnetic properties of grain-oriented and non-oriented silicon iron core arrangements

Abstract

Electrical steel is a key material for power apparatus in electric home appliances, industrial machinery and transport equipment. Specifically, they are used as cores in transformers, generators and motors, efficiently converting magnetic energy into electricity. The magnetic properties of steel laminations need to be precisely estimated in order to design an accurate electrical machine. In this study, two types of magnetic materials, grain-oriented and non-oriented electrical steel were used. Measurements were performed for vertical and horizontal arrangements of one-dimensional magnetizing system at the frequency of 50 Hz. The magnetic properties were principally investigated by developing the magnetizing system, constructed by two laminated C-cores with copper winding in excitation mode. The most important quantities in characterizing the magnetic materials are the magnetic field strength, H, and magnetic flux density, B. Results obtained indicate that different core arrangement influences the detected field strength. The results also show that the magnetic properties of grain-oriented are better compared to non-oriented steel.