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Measurement of rotational power loss of silicon steel sheet using a vertical yoke system
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
2005 (English)In: Przeglad Elektrotechniczny, ISSN 0033-2097, Vol. 81, no 5, 63-67 p.Article in journal (Refereed) Published
Abstract [en]

Rotational power loss was measured on non-oriented and grain-oriented silicon steel sheet under different rotational field conditions. A novel two-dimensional measurement system was used. It consists of two perpendicular symmetrical yoke pairs arranged such that the magnetic field is highly homogeneous. The cross product of the H- and the B-vector was adopted as the correct estimation of the rotational power loss rather than the sum of the alternating losses in x-and y-direction. This approach was justified by means of measurements. A number of results are similar to the observations made earlier with rotational single sheet tester (RSST). However, no hard direction was observed for the non-oriented material, and the common RSST is questioned. Controlling H instead of B worked well.

Place, publisher, year, edition, pages
2005. Vol. 81, no 5, 63-67 p.
Keyword [en]
Alternative measurement system, Magnetic steel, Rotational power loss
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-156490ScopusID: 2-s2.0-32044466724OAI: diva2:768117

QC 20141203

Available from: 2014-12-03 Created: 2014-11-28 Last updated: 2015-10-20Bibliographically approved

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Krah, Julius H.
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