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 100 kHz by the use of ring specimens

Amended by

IEC 60404-6:2018/COR1:2018

Available format(s)

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

Language(s)

English

Published date

25-05-2018

Publisher

International Electrotechnical Committee

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 General principles of measurement
5 Temperature measurements
6 Measurement of the relative amplitude permeability
  and the AC magnetization curve
7 Measurement of the specific total loss by the
  wattmeter method
8 Uncertainties
9 Test report
Annex A (informative) - Guidance on requirements for
        windings and instrumentation in order to
        minimise additional losses
Annex B (informative) - Digital sampling technique for
        the determination of magnetic properties
        and numerical air flux compensation
Annex C (informative) - Sinusoidal waveform control
        by digital means
Bibliography

IEC 60404-6:2018 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 60404-6:2018 specifies methods for the measurement of AC magnetic properties of soft magnetic materials, other than electrical steels and soft ferrites, in the frequency range 20 Hz to 100 kHz. The materials covered by this part of IEC 60404 include those speciality alloys listed in IEC 60404-8-6, amorphous and nano-crystalline soft magnetic materials, pressed and sintered and metal injection moulded parts such as are listed in IEC 60404-8-9, cast parts and magnetically soft composite materials. The object of this part is to define the general principles and the technical details of the measurement of the magnetic properties of magnetically soft materials by means of ring methods. For materials supplied in powder form, a ring test specimen is formed by the appropriate pressing method for that material. The measurement of the DC magnetic properties of soft magnetic materials is made in accordance with the ring method of IEC 60404-4. The determinations of the magnetic characteristics of magnetically soft components are made in accordance with IEC 62044-3. This edition includes the following significant technical changes with respect to the previous edition:
a) adaption to modern measurement and evaluation methods, in particular the introduction of the widely spread digital sampling method for the acquisition and evaluation of the measured data;
b)limitation of the frequency range up to 100 kHz;
c) deletion of Clause 7 of the second edition that specified the measurement of magnetic properties using a digital impedance bridge;
d) addition of a new Clause 7 on the measurement of the specific total loss by the wattmeter method, including an example of the application of the digital sampling method;
e) addition of an informative annex on the technical details of the digital sampling technique for the determination of magnetic properties.
The contents of the corrigendum of November 2018 have been included in this copy.

Committee	TC 68
DevelopmentNote	Stability Date: 2021. (05/2018)
DocumentType	Redline
ISBN	978-2-8322-5754-8
Pages	81
PublisherName	International Electrotechnical Committee
Status	Current
Supersedes	IEC 60404-6:2003 IEC 60404-6:2003/COR1:2009

IEC 60404-4:1995+AMD1:2000+AMD2:2008 CSV	Magnetic materials - Part 4: Methods of measurement of d.c. magnetic properties of magnetically soft materials
IEC 60404-8-9:1994	Magnetic materials - Part 8: Specifications for individual materials - Section 9: Standard specification for sintered soft magnetic materials
IEC 60050-221:1990	International Electrotechnical Vocabulary (IEV) - Part 221: Magnetic materials and components
IEC 60404-8-6:2016	Magnetic materials - Part 8-6: Specifications for individual materials - Soft magnetic metallic materials
IEC 62044-3:2000	Cores made of soft magnetic materials - Measuring methods - Part 3: Magnetic properties at high excitation level
IEC 60050-121:1998	International Electrotechnical Vocabulary (IEV) - Part 121: Electromagnetism
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
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)