Studies and comparisons of magnetic measurements on grain-oriented electrical steelsheet determined by the single sheet test method and Epstein test method
单板法和爱泼斯坦法测定取向电工钢片磁性测量的研究与比较
BS PD IEC/TR 62981:2017, which is a Technical Report, provides the results of international exercises
and comparisons focusing on achieving the knowledge of the statistical performance of single
sheet tester (SST) measurements made on grain-oriented electrical steel. These experiments
aim at specifying obligatory reference values, measured by the single sheet test method, for
the grading of high permeability (P grades) grain-oriented (g.-o.) materials, independently
from the Epstein classification as it is practiced today. Besides this, Epstein test
measurements have been made in order to gain more up-to-date statistical performance for
comparison with the SST statistical characteristics. A few experiments were carried out
aiming at improved knowledge on the systematic error performance of the SST, i.e. they were
to determine the correlation between the quality of insulation separating laminations in the
SST yokes and the measured loss.Cross References:IEC 60050-221:1990/AMD3:2007IEC 60050-121:1998IEC 60404-2:1996/AMD1:2008IEC 60404-3:1992/AMD1:2002IEC 60404-3:1992 Cons Ed 2-2IEC 60404-3:1992/AMD2:2009IEC 60404-2:1996 Cons Ed 3-1All current amendments available at time of purchase are included with the purchase of this document.