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IEC TR 62383:2006

Current
Current

The latest, up-to-date edition.

Determination of magnetic loss under magnetic polarization waveforms including higher harmonic components - Measurement, modelling and calculation methods
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

26-01-2006

Publisher

International Electrotechnical Committee

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Principles of measurement
  3.1 General
  3.2 Yokes, windings and test specimen
  3.3 Power amplifier
  3.4 Waveform synthesizer
  3.5 Digitiser
  3.6 Control of secondary voltage
  3.7 Peak reading apparatus
  3.8 Air flux compensation
4 Measuring system
5 Measurements
  5.1 Generation of the magnetic polarization waveform
      including higher harmonics
  5.2 Determination of peak value of magnetic polarization
  5.3 Determination of the magnetic polarization
  5.4 Determination of magnetic field strength
  5.5 Determination of the magnetic loss
  5.6 Plotting the a.c. hysteresis loop including the higher
      harmonics
6 Example of measurement
  6.1 Magnetic loss measurement of non-oriented electrical
      steel sheets
  6.2 Magnetic loss measurement under stator tooth waveform
      conditions
7 Prediction of magnetic loss including higher harmonic
  polarization
  7.1 General
  7.2 Energy loss separation [14]
  7.3 Neural network method [17]
  7.4 Modified superposition formula [20]
8 Summary
Bibliography

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.

Committee
TC 68
DevelopmentNote
Stability Date: 2021 (11/2017)
DocumentType
Technical Report
Pages
32
PublisherName
International Electrotechnical Committee
Status
Current

Standards Relationship
NEN NPR IEC/TR 62383 : 2006 Identical
PD IEC/TR 62383:2006 Identical

IEC 60404-6:2003 Magnetic materials - Part 6: Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 200 kHz by the use of ring specimens
IEC 60404-10:2016 Magnetic materials - Part 10: Methods of measurement of magnetic properties of electrical steel strip and sheet at medium frequencies
IEC 60404-2:1996+AMD1:2008 CSV Magnetic materials - Part 2: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an Epstein frame
IEC 60404-3:1992+AMD1:2002+AMD2:2009 CSV Magnetic materials - Part 3: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester

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Hardcopy - English
PDF - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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