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Evaluation of performance of distribution transformers supplying non linear loads currents: Effect of oversizing

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3 Author(s)
Zeraatparvar, A. ; Azerbaijan Higher Educ. & Res. Complex, Tabriz, Iran ; Sami, T. ; Raheli, F.A.

Harmonic currents, generated by non-linear loads, produce `penalty losses' in every element of an electrical distribution system. These harmonic-related losses reduce system efficiency, cause apparatus overheating, and increase power and air conditioning costs. In this paper, evaluation of transformer losses under non-linear load conditions will be discussed. In addition, the results of practical measurements of full filled on 7 units of distribution transformers in Tabriz Power Electric Distribution network are evaluated and some suggestions to improve the situation are presented.

Published in:

Environment and Electrical Engineering (EEEIC), 2011 10th International Conference on

Date of Conference:

8-11 May 2011