YB/T 6247.1-2024: Measurement of the specific total loss for electrical steel strip and sheet - Part 1: Method of including higher harmonics components

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Scope

This document specifies the measurement principle, specimens, measuring devices,
measurement system, determination, and test report for the specific total loss for electrical steel
strip and sheet under conditions of magnetic polarization involving a fundamental frequency
equal to the power frequency and the presence of higher harmonic components.
This document is applicable to grain-oriented and non-oriented electrical steel strip and sheet.
In this document, the order of higher harmonics shall not exceed the 25th for Epstein frame and
ring specimens, and shall not exceed the 13th for single-sheet specimens.

Basic Data

Standard ID	YB/T 6247.1-2024 (YB/T6247.1-2024)
Description (Translated English)	(Measurement of total loss of electrical steel strips (sheets) - Part 1: Including high-order harmonic method)
Sector / Industry	Ferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H21
Classification of International Standard	77.040.99
Word Count Estimation	14,165
Date of Issue	2024-10-24
Date of Implementation	2025-05-01
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This standard specifies the measurement principle, sample, measurement device, measurement system, determination and test report of the specific total loss of electrical steel strip (sheet) under the condition of magnetic polarization with the base frequency of industrial frequency and containing high-order harmonics. This standard is applicable to grain-oriented and grain-non-oriented electrical steel strip (sheet).