Measurement of Iron Loss Using Rotational Magnetic Loss Measurement Apparatus

Several methods have been proposed for the measurement of the magnetic losses in electrical steel sheet in a rotating magnetic flux. The method considered here is based on determination of the field quantities and makes use of square specimens and an air gap between the pole faces and the specimen. We earlier reported the results of magnetic field analysis on this apparatus by the finite element method. In this paper we report a method for measuring rotational power losses together with measurement results.