Prediction of losses in induction machines: a challenge for the modelling approaches O. Bottauscio, M. Chiampi, A. Manzin and M. Zucca Eur. Phys. J. Appl. Phys., 30 1 (2005) 7-16 Published online: 28 January 2005 DOI: 10.1051/epjap:2005009