{"id":425322,"date":"2024-10-20T06:56:12","date_gmt":"2024-10-20T06:56:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60404-32022-2023\/"},"modified":"2024-10-26T13:04:34","modified_gmt":"2024-10-26T13:04:34","slug":"bs-en-iec-60404-32022-2023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60404-32022-2023\/","title":{"rendered":"BS EN IEC 60404-3:2022 2023"},"content":{"rendered":"

IEC 60404-3:2022 is available as IEC 60404-3:2022 RLV<\/span> 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\u2019 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.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
7<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
9<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
11<\/td>\nFOREWORD <\/td>\n<\/tr>\n
13<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
14<\/td>\n4 General principles of AC measurements
4.1 General
4.2 Principle of the single sheet tester method
4.3 Test apparatus
4.3.1 Yokes <\/td>\n<\/tr>\n
15<\/td>\nFigures
Figure 1 \u2013 Schematic diagrammes of the test apparatus <\/td>\n<\/tr>\n
16<\/td>\n4.3.2 Windings
Figure 2 \u2013 Yoke dimensions
Figure 3 \u2013 Diagram of the connections of the five coils of the primary winding <\/td>\n<\/tr>\n
17<\/td>\n4.4 Air flux compensation
4.5 Test specimen
Figure 4 \u2013 Circuit for the determination of the specific total loss <\/td>\n<\/tr>\n
18<\/td>\n4.6 Power supply
5 Determination of the specific total loss
5.1 Principle of measurement
5.2 Apparatus
5.2.1 Voltage measurement <\/td>\n<\/tr>\n
19<\/td>\n5.2.2 Frequency measurement
5.2.3 Power measurement
5.3 Measurement procedure of the specific total loss
5.3.1 Preparation of measurement
5.3.2 Adjustment of power supply <\/td>\n<\/tr>\n
20<\/td>\n5.3.3 Measurements <\/td>\n<\/tr>\n
21<\/td>\n5.3.4 Reproducibility of the measurement of the specific total loss
6 Determination of magnetic field strength, primary currentand specific apparent power
6.1 General
6.2 Principle of measurement
6.2.1 Peak value of the magnetic polarization
6.2.2 RMS value of the primary current <\/td>\n<\/tr>\n
22<\/td>\n6.2.3 Peak value of the magnetic field strength
6.3 Apparatus
6.3.1 Average type voltmeter
Figure 5 \u2013 Circuit for measuring the RMS value of the primary current
Figure 6 \u2013 Circuit for measuring the peak value of the magnetic field strength <\/td>\n<\/tr>\n
23<\/td>\n6.3.2 RMS current measurement
6.3.3 Peak current measurement
6.3.4 Power supply
6.3.5 Resistor R
6.4 Measuring procedure
6.4.1 Preparation for measurement
6.4.2 Measurement <\/td>\n<\/tr>\n
24<\/td>\n6.4.3 Non-oriented material
6.5 Determination of characteristics
6.5.1 Determination of \u0134
6.5.2 Determination of <\/td>\n<\/tr>\n
25<\/td>\n6.5.3 Determination of
6.5.4 Determination of Ss <\/td>\n<\/tr>\n
26<\/td>\n6.5.5 Reproducibility of the measurement of the specific apparent power
7 Test report <\/td>\n<\/tr>\n
27<\/td>\nAnnexes
Annex A (normative) Requirements concerning the manufacture of yokes <\/td>\n<\/tr>\n
29<\/td>\nAnnex 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 <\/td>\n<\/tr>\n
30<\/td>\nFigure B.1 \u2013 Specific total loss vs. peak flux density (after J. Sievert [3] and G. Bertotti [4]); straight line: PS \u221d B1.85 approximation (after C. Ragusa). <\/td>\n<\/tr>\n
31<\/td>\nTables
Table B.1 \u2013 Loss dissipated by the yokes of a standard SST, determined from the loss curves measured on 3 yoke pairs as shown in Figure B.1, and relevant quantities including the relative yokes’ contribution, pY; exemplified using 5 standard grades <\/td>\n<\/tr>\n
32<\/td>\nAnnex C (informative) Epstein to SST relationship for grain-oriented steel sheet <\/td>\n<\/tr>\n
33<\/td>\nTable C.1 \u2013 SST-Epstein relative differences \u03b4P and \u03b4HS and the conversion factor FC for conventional grain-oriented material in the polarization range 1,0 T to 1,8 T <\/td>\n<\/tr>\n
34<\/td>\nFigure C.1 \u2013 SST-Epstein relative difference \u03b4P for conventional grain-oriented material versus magnetic polarization \u0134
Figure C.2 \u2013 SST-Epstein relative difference \u03b4HS for conventional grain-oriented material versus magnetic polarization \u0134 <\/td>\n<\/tr>\n
35<\/td>\nAnnex D (informative) Digital sampling methods for the determination of the magnetic properties and numerical air flux compensation
D.1 General
D.2 Technical details and requirements <\/td>\n<\/tr>\n
37<\/td>\nD.3 Calibration aspects
D.4 Numerical air flux compensation <\/td>\n<\/tr>\n
39<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Magnetic materials – Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2023<\/td>\n40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":425332,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[285,2641],"product_tag":[],"class_list":{"0":"post-425322","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-220-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/425322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/425332"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=425322"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=425322"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=425322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}