Magnetic Properties of Electrical Steel Material for Electric Machines Core

전기기기 코아용 전기강판 소재의 자기적 특성

The high efficiency for motors has been continuously required for energy saving. The iron losses occurring in motor cores account for high percentage in the energy losses of motors, so that electrical steels with lower iron losses have been desired as core materials. It is necessary to understand the basic charecteristic of the electrical steel to design motors and establish manufacturing process for the loss reduction. Therefore, this paper deal with the basic characteristic related with the magnetic properties of electrical steels and descibes the cause of core loss in electrical machines.