Transformer model extension for variation of additional losses with frequency

Authors:
Marius Constantin Popescu;Gheorghe Manolea;Cornelia Aida Bulucea;Niculae Boteanu;Liliana Perescu-Popescu;Ioan Ovidiu Muntean
Affiliations:
Faculty of Electromechanical and Environmental Engineering, University of Craiova, Romania;Faculty of Electromechanical and Environmental Engineering, University of Craiova, Romania;Faculty of Electromechanical and Environmental Engineering, University of Craiova, Romania;Faculty of Electromechanical and Environmental Engineering, University of Craiova, Romania;Charles Logier College Craiova, Romania;Faculty of Mechanical and Electrical Engineering, University of Petrosani, Romania
Venue:
ACMOS'09 Proceedings of the 11th WSEAS international conference on Automatic control, modelling and simulation
Year:
2009

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Abstract

This article begins with a study of transformer additional losses due to the presence of non-sinusoidal loads, presents existing models to represent these losses and proposes an original model. Consequent increment in transformer loss of life is studied by means of a sensitivity analysis of the model to transformer rated power, load amplitude, thermal inertia, profiles correlation and harmonic spectrum content.