International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 68

Magnetic alloys and steels

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 68WG 2 D. SonPPUB 2025

History

Stage
Document
Downloads
Decision Date
Target Date
1CD
68/279/CD PDF file 1350 kB
2003-07-18 
CDM
68/285/CC Word file 201 kB
PDF file 370 kB
2003-10-032003-10
A2CD
68/285A/CC Word file 155 kB
PDF file 331 kB
2003-11-142003-12
2CD
68/295/CD PDF file 2545 kB
2004-02-272004-03
ACDV
68/304/CC PDF file 274 kB
2004-10-292004-06
CDTR
68/309/DTR PDF file 1857 kB
2005-03-182005-03
APUB
68/315/RVC Word file 173 kB
PDF file 63 kB
2005-07-082005-08
DECPUB
2005-11-022005-09
BPUB
2005-11-022005-11
DECFDIS
2005-11-02 
RPUB
2005-12-06 
PPUB
2006-01-262006-01
  

Abstract

This technical report reviews methods for measurement of the magnetic loss of soft magnetic materials under the condition of magnetic polarization which includes higher harmonic components. Nowadays, by computer aided testing (CAT), a.c. magnetic properties of electrical steel sheets can be measured under various measuring conditions automatically. For example, the magnetic loss in the presence of higher harmonic frequency components of magnetic polarization can be measured using the arbitrary waveform synthesizer, digitiser and computer. The present standard methods (IEC 60404-2, IEC 60404-3 and IEC 60404-10) for the determination of specific total loss are restricted to the sinusoidal waveform of magnetic polarization, and these standards are still important for the characterization of core materials. However, actual waveforms of magnetic polarization in the electrical machines and transformers always include higher harmonic polarizations, and nowadays electrical machines can be designed using numerical methods including higher harmonics. But for these conditions, there is still no standard testing method.

Project

IEC TR 62383:2006 ED1

Determination of magnetic loss under magnetic polarization waveforms including higher harmonic components - Measurement, modelling and calculation methods

 

 

Associated Documents:

68/362/RM

PDF file 102 kB
68/344/INF

PDF file 82 kB
68/337/DC

PDF file 85 kB