EN IEC 60404-3:2022
(Main)Magnetic materials - Part 3: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester
Magnetic materials - Part 3: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester
IEC 60404-3:2022 is available as IEC 60404-3:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60404-3:2022 is applicable to grain-oriented and non-oriented electrical steel strip and sheet for measurement of AC magnetic properties at power frequencies. The object of this document is to define the general principles and the technical details of the measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester (SST). This edition includes the following significant technical changes with respect to the previous edition: - Annex A was revised. The method of determining the yokes’ lamination resistance was added to Annex A; - Annex B of the consolidated version of 2010 referred to calibration of the SST using the Epstein method. It was cancelled; - Annex B (new), Annex C and Annex D were revised, they are for information only; - Annex C was modified taking account of the new situation regarding P and R grades; - Annex D was amended by addition of Clause D.4 on the numerical air flux compensation.
Magnetische Werkstoffe - Teil 3: Verfahren zur Bestimmung der magnetischen Eigenschaften von Elektroband und -blech mit Hilfe eines Tafelmessgerätes
Matériaux magnétiques - Partie 3: Méthodes de mesure des caractéristiques magnétiques des bandes et tôles magnétiques en acier à l'aide de l'essai sur tôle unique
IEC 60404-3:2022 est disponible sous forme de IEC 60404-3:2022 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60404-3:2022 s'applique aux bandes et tôles magnétiques en acier à grains orientés et à grains non orientés pour le mesurage des caractéristiques magnétiques en courant alternatif aux fréquences industrielles. Le présent document a pour objet de définir les principes généraux et les détails techniques pour le mesurage des caractéristiques magnétiques des bandes et tôles magnétiques en acier à l'aide de l'essai sur tôle unique (SST, Single Sheet Tester). Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - l'Annexe A a été révisée. La méthode de détermination de la résistance des bandes des culasses a été ajoutée à l'Annexe A; - l'Annexe B de l'édition consolidée de 2010 faisait référence à l'étalonnage du SST à l'aide de la méthode Epstein. Elle a été annulée; - l'Annexe B (nouvelle), l'Annexe C et l'Annexe D ont été révisées et sont seulement informatives; - l'Annexe C a été modifiée compte tenu de la nouvelle situation concernant les qualités P et R; - l'Annexe D a été amendée par ajout de l'Article D.4 relatif à la compensation numérique du flux d'air.
Magnetni materiali - 3. del: Metode merjenja magnetnih lastnosti električnih jeklenih trakov in pločevine z uporabo enolistnega preskuševalnika (IEC 60404-3:2022)
Standard IEC 60404-3:2022 je na voljo kot IEC 60404-3:2022 RLV, ki vsebuje mednarodni standard in njegovo različico z revizijami, ki prikazujejo vse spremembe tehnične vsebine v primerjavi s prejšnjo izdajo. Standard IEC 60404-3:2022 se uporablja za zrnato orientirano in neorientirano elektropločevino ter trakove za merjenje magnetnih lastnosti pri izmeničnem toku in omrežnih frekvencah. Namen tega dokumenta je opredeliti splošna načela in tehnične podrobnosti za merjenje magnetnih lastnosti električnih jeklenih trakov in pločevine z uporabo enolistnega preskuševalnika (SST). Ta izdaja v primerjavi s prejšnjo vključuje naslednje pomembne tehnične spremembe:
– Dodatek A je bil prenovljen. Dodana je bila metoda za določitev odpornosti tuljav pri laminiranju.
– Dodatek B prečiščene različice iz leta 2010, ki se navezuje na kalibriranje enolistnega preskuševalnika z Epsteinovo metodo, je bil razveljavljen.
– Dodatek B (nov), dodatek C in dodatek D so bili revidirani; namenjeni so zgolj za informativne namene.
– Dodatek C je bil spremenjen ob upoštevanju nove situacije v zvezi z razredoma P in R.
– Dodatek D je bil dopolnjen s točko D.4 o numerični kompenzaciji pretoka zraka.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2023
Magnetni materiali - 3. del: Metode merjenja magnetnih lastnosti električnih
jeklenih trakov in pločevine z uporabo enolistnega preskuševalnika (IEC 60404-
3:2022)
Magnetic materials - Part 3: Methods of measurement of the magnetic properties of
electrical steel strip and sheet by means of a single sheet tester (IEC 60404-3:2022)
Magnetische Werkstoffe - Teil 3: Verfahren zur Bestimmung der magnetischen
Eigenschaften von Elektroband und -blech mit Hilfe eines Tafelmessgerätes (IEC 60404-
3:2022)
Matériaux magnétiques - Partie 3: Méthodes de mesure des caractéristiques
magnétiques des bandes et tôles magnétiques en acier à l'aide de l'essai sur tôle unique
(IEC 60404-3:2022)
Ta slovenski standard je istoveten z: EN IEC 60404-3:2022
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
29.030 Magnetni materiali Magnetic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60404-3
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2022
ICS 29.030; 17.220.20
English Version
Magnetic materials - Part 3: Methods of measurement of the
magnetic properties of electrical steel strip and sheet by means
of a single sheet tester
(IEC 60404-3:2022)
Matériaux magnétiques - Partie 3: Méthodes de mesure des Magnetische Werkstoffe - Teil 3: Verfahren zur Bestimmung
caractéristiques magnétiques des bandes et tôles der magnetischen Eigenschaften von Elektroband und -
magnétiques en acier à l'aide de l'essai sur tôle unique blech mit Hilfe eines Tafelmessgerätes
(IEC 60404-3:2022) (IEC 60404-3:2022)
This European Standard was approved by CENELEC on 2022-12-13. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
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Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60404-3:2022 E
European foreword
The text of document 68/699/CDV, future edition 3 of IEC 60404-3, prepared by IEC/TC 68 "Magnetic
alloys and steels" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-09-13
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-12-13
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60404-3:2022 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60404-8-7:2020 NOTE Harmonized as EN 10107:2022 (modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-121 - International Electrotechnical Vocabulary - - -
Part 121: Electromagnetism
IEC 60050-221 - International Electrotechnical Vocabulary. - -
Chapter 221: Magnetic materials and
components
IEC 60404-13 - Magnetic materials - Part 13: Methods of EN IEC 60404-13 -
measurement of resistivity, density and
stacking factor of electrical steel strip and
sheet
IEC 60404-3 ®
Edition 3.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Magnetic materials –
Part 3: Methods of measurement of the magnetic properties of electrical steel
strip and sheet by means of a single sheet tester
Matériaux magnétiques –
Partie 3: Méthodes de mesure des caractéristiques magnétiques des bandes et
tôles magnétiques en acier à l'aide de l'essai sur tôle unique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 29.030 ISBN 978-2-8322-5961-0
– 2 – IEC 60404-3:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General principles of AC measurements . 7
4.1 General . 7
4.2 Principle of the single sheet tester method . 7
4.3 Test apparatus . 7
4.3.1 Yokes . 7
4.3.2 Windings . 9
4.4 Air flux compensation . 10
4.5 Test specimen . 10
4.6 Power supply . 11
5 Determination of the specific total loss . 11
5.1 Principle of measurement. 11
5.2 Apparatus . 11
5.2.1 Voltage measurement . 11
5.2.2 Frequency measurement . 12
5.2.3 Power measurement . 12
5.3 Measurement procedure of the specific total loss . 12
5.3.1 Preparation of measurement . 12
5.3.2 Adjustment of power supply . 12
5.3.3 Measurements . 13
5.3.4 Reproducibility of the measurement of the specific total loss . 14
6 Determination of magnetic field strength, primary current and specific apparent
power . 14
6.1 General . 14
6.2 Principle of measurement. 14
6.2.1 Peak value of the magnetic polarization . 14
6.2.2 RMS value of the primary current. 14
6.2.3 Peak value of the magnetic field strength . 15
6.3 Apparatus . 15
6.3.1 Average type voltmeter . 15
6.3.2 RMS current measurement . 16
6.3.3 Peak current measurement . 16
6.3.4 Power supply . 16
6.3.5 Resistor R . 16
6.4 Measuring procedure . 16
6.4.1 Preparation for measurement . 16
6.4.2 Measurement . 16
6.4.3 Non-oriented material . 17
6.5 Determination of characteristics . 17
6.5.1 Determination of Ĵ . 17
6.5.2 Determination of H . 17
6.5.3 Determination of . 18
H
IEC 60404-3:2022 © IEC 2022 – 3 –
6.5.4 Determination of S . 18
s
6.5.5 Reproducibility of the measurement of the specific apparent power . 19
7 Test report . 19
Annex A (normative) Requirements concerning the manufacture of yokes . 20
Annex B (informative) Check and verification of reliable performance of the SST set-
up by the use of reference samples and impact of the loss dissipated in the yokes . 22
Annex C (informative) Epstein to SST relationship for grain-oriented steel sheet . 25
Annex D (informative) Digital sampling methods for the determination of the magnetic
properties and numerical air flux compensation . 28
D.1 General . 28
D.2 Technical details and requirements . 28
D.3 Calibration aspects . 30
D.4 Numerical air flux compensation . 30
Bibliography . 32
Figure 1 – Schematic diagrammes of the test apparatus . 8
Figure 2 – Yoke dimensions . 9
Figure 3 – Diagram of the connections of the five coils of the primary winding . 9
Figure 4 – Circuit for the determination of the specific total loss. 10
Figure 5 – Circuit for measuring the RMS value of the primary current .
...
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