This paper proposes a new equivalent circuit for medium voltage and great power induction motors considering the more complete information given by the manufacturer. A methodology for obtaining the parameters of the equivalent circuit is presented, having this circuit the advantage of allowing the electrical calculation of all the power losses and the realization of the power balance. It is an achievement of this work a new way of calculating and representing the additional losses using a resistance located in the rotor circuit. Then, three types of losses are considered as a part of a power balance: the conventional or joule effect variable losses, the constant losses, and the additional losses. The proposed method is straight and non-iterative. It was applied to a case study motor of 6000 V and 2500 kW located at the Maximo Gomez Power Plant in Cuba.
Collaboration network of the authors
18 authors ·
46 co-authorship links
· 24 across different organisations
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Universidad de la Costa
University of Cienfuegos
Universidad Autónoma de Occidente
Universidad Simón Bolívar
University of Coimbra
Universidad Nacional de Río Cuarto
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