Title :
Evaluation of performance of distribution transformers supplying non linear loads currents: Effect of oversizing
Author :
Zeraatparvar, Ali ; Sami, Taghi ; Raheli, F. Abbasi
Author_Institution :
Azerbaijan Higher Educ. & Res. Complex, Tabriz, Iran
Abstract :
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.
Keywords :
distribution networks; load (electric); power system harmonics; power transformers; Harmonic currents; Tabriz Power Electric Distribution network; apparatus overheating; distribution transformers; electrical distribution system; nonlinear loads current supply; system efficiency; Harmonic analysis; Oil insulation; Power system harmonics; Power transformer insulation; Temperature measurement; Windings; Distribution Networks; Harmonics Effect; Non-Linear Loads; Transformer Losses;
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2011 10th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-8779-0
DOI :
10.1109/EEEIC.2011.5874586
