Measurements of stray losses in induction machines with die-cast aluminium rotors
2012 (English)In: ICEMS 2012 - Proceedings: 15th International Conference on Electrical Machines and Systems, IEEE , 2012, 6401766- p.Conference paper (Refereed)
The rotor bars in induction machines are usually skewed in order to reduce parasitic effects created by the stator and the rotor slotting. In skewed rotors having uninsulated rotor bars, inter-bar currents can create large losses, reducing the efficiency of the machine. This paper presents results from calorimetric measurements of the total losses in an 11 kW induction machine, equipped with either a skewed or an unskewed die-cast rotor. The losses are segregated for a comparative study of the different loss components. It was found that, for the studied machine designs, the stray-load losses are redistributed rather than reduced when the rotor skew was removed.
Place, publisher, year, edition, pages
IEEE , 2012. 6401766- p.
Stray losses, Die-cast rotors, Rotor skewing, Calorimetric measurements.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-107594ISI: 000332791700068ScopusID: 2-s2.0-84873456186ISBN: 978-488686077-4OAI: oai:DiVA.org:kth-107594DiVA: diva2:576820
15th International Conference on Electrical Machines and Systems, ICEMS 2012; Sapporo; 21 October 2012 through 24 October 2012
QC 201302182012-12-132012-12-132014-10-14Bibliographically approved