NDLI: Investigation of short-circuit fault effects on non-oriented steel at different range of magnetisations

Content Provider	IEEE Xplore Digital Library
Author	Eldieb, A. Anayi, F. Fahmy, A.
Copyright Year	2015
Description	Author affiliation: Wolfson Centre for Magnetics, Cardiff Univ., Cardiff, UK (Eldieb, A.; Anayi, F.) \|\| Cardiff Sch. of Eng., Cardiff Univ., Cardiff, UK (Fahmy, A.)
Abstract	Short circuits between sheets of magnetic core of electrical machines in service are due to inter-laminar insulation damage, manufacturing defects, edge burrs and winding faults. These inter-laminar faults lead to circulating eddy currents between the affected laminations which are larger than seen in normal operation. This paper focuses on the effect of edge burrs faults on machine laminations at different set-points and different magnetising frequencies. The experimental study is carried out by using strip tester. Based on the obtained results the presence of edge burrs faults have significant effect on the magnetic properties of magnetic cores. This study has also shown that the induced eddy currents are largely dependent on the position of the fault (edge burrs) as well as on the number of shorted laminations. Moreover, power loss separation has shown significant increase in eddy current losses component with increasing number of shorted laminations.
Starting Page	1
Ending Page	6
File Size	665697
Page Count	6
File Format	PDF
e-ISBN	9781467396820
DOI	10.1109/UPEC.2015.7339881
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-01
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	anomalous loss edge burrs power loss Lamination Current measurement hysteresis loss Magnetic hysteresis Loss measurement eddy currents Circuit faults Steel conductance Eddy currents
Content Type	Text
Resource Type	Article

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