BS 6404-10:1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Magnetic materials Methods of measurement of magnetic properties of magnetic steel and strip at medium frequencies
Hardcopy , PDF
06-15-1997
English
09-29-1989
National foreword
Committees responsible
Introduction
1. Field and scope of application
2. Accuracy and reproducibility
Chapter I: General conditions for a.c. measurements
made with the 25 cm Epstein frame
3. Scope
4. Field of application
5. Principle of the 25 cm Epstein frame method
6. Test specimen
7. 25 cm Epstein frame
8. Air flux compensation
9. Power supply
Chapter II: Determination of specific total losses by
the wattmeter method
10. Scope
11. Field of application
12. Principle of measurement
13. Apparatus
14. Measuring procedure
15. Determination of specific total losses
16. Reproducibility
Chapter III: Determination of magnetic field strength
excitation current and specific apparent power
17. Scope
18. Principle of measurement
19. Apparatus
20. Measuring procedure
21. Determination of characteristics
22. Reproducibility
Appendix
A. Epstein frame for use at medium frequencies
Figures
1. Double-lapped joints
2. 25 cm Epstein frame
3. Circuit for the wattmeter method
4. Circuit for measuring r.m.s. value of the
excitation current
5. Circuit for measuring peak value of magnetic field
strength using a peak voltmeter
6. Circuit for measuring peak value of magnetic field
strength using a mutual inductor
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.