Oliveira, L. M. R.Cardoso, A. J. Marques2009-02-132009-02-132001Record of the IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (IEEE SDEMPED`01). - Grado, 1-3 September 2001. - p. 367-372Oliveira, L. M. R.; Cardoso, A.J.M.A coupled electromagnetic transformer model for the analysis of winding inter-turn short-circuits, Trabalho apresentado em IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (IEEE SDEMPED'01), In Record of the IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (IEEE SDEMPED'01), Grado, 2001AUT: LOL01124;http://hdl.handle.net/10400.1/99This paper presents the development and implementation of a coupled electromagnetic transformer model for the simulation of three-phase power and distribution transformers affected by the presence of winding inter-turn short-circuits. Generically, the coupled electromagnetic transformer model is based on the simultaneous consideration of both magnetic and electric equivalent circuits. To incorporate the internal faults in this model a suitable equivalent circuit of the faulty winding is proposed. Both simulation and laboratory tests results are presented in the paper, which demonstrate the adequacy of the proposed model.engMáquinas eléctricasTransformadores621.313TransformersCoupled electromagnetic modelModelling and simulationconference object