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This paper presents the rotational power loss P, curves measured for nonoriented, conventional grain-oriented and high-permeability grain-oriented electrical steel under controlled loci of flux density B, or magnetic field H. The P is measured at 10, 50, and 250 Hz with the radius of circular loci of B being controlled from 0.5 to 2.0 T and the radius of circular loci of H from 50 to 20 kA/m. The well-known phenomenon of decreasing P at higher magnetization is confirmed in the results. The maximum P under controlled circular H can be up to 2.5 times higher than under controlled circular B and up to six times higher than the value of alternating loss for anisotropic electrical steels. In thicker laminations at higher frequencies, the peaks in P curves vanish due to increased contribution of eddy currents
Published in:
Magnetics, IEEE Transactions on
(Volume:42
,
Issue:
10
)
Date of Publication: Oct. 2006
- Page(s):
- 2815 - 2817
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 9116635
- Digital Object Identifier :
- 10.1109/TMAG.2006.879907
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 25 September 2006
- Issue Date :
- Oct. 2006
- Sponsored by :
- IEEE Magnetics Society
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