MAGNETIC LOSS AND B(H) BEHAVIOR OF NONORIENTED ELECTRICAL SHEETS UNDER A TRAPEZOIDAL EXCITING FIELD

Authors
KEDOUSLEBOUC A ERRARD S CORNUT B BRISSONNEAU P
Citation
A. Kedouslebouc et al., MAGNETIC LOSS AND B(H) BEHAVIOR OF NONORIENTED ELECTRICAL SHEETS UNDER A TRAPEZOIDAL EXCITING FIELD, Journal of magnetism and magnetic materials, 133(1-3), 1994, pp. 180-182
Citations number
3
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
133
Issue
1-3
Year of publication
1994
Pages
180 - 182
Database
ISI
SICI code
0304-8853(1994)133:1-3<180:MLABBO>2.0.ZU;2-H
Abstract
The excess loss and hysteresis response of electrical steel are measur ed and discussed in the case of trapezoidal field excitation similar t o the current provided by a current commutation supply of a self-synch ronous rotating machine. Three industrial non-oriented SiFe samples of different magnetic grades and thicknesses are tested using an automat ic Epstein frame equipment. The losses and the unusual observed B(H) l oops are analysed in terms of the rate of change of the field, the dif fusion of the induction inside the sheet and by the calculation of the theoretical hysteresis cycles due to the eddy currents.