Cooperation of a three-phase transformer with non-linear load
DOI:
https://doi.org/10.5604/01.3001.0012.8144Keywords:
dry transformer, nonlinear load, K-factor, nonlinear current loadAbstract
The paper presents the theoretical basics and the derivation of the American standard expression used to determine the thermally permissible current of three-phase dry transformers with nonlinear loads. The results of the measurement verification of this expression are presented, with different shapes of loading currents of the dry transformers under test. The results of the tests confirmed the correctness of the expression for contemporary transformers only.
Downloads
References
IEEE STANDARD C57.110-2008, IEEE Recommended Practice for Establishing Liquid-Filled and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Load Currents, 2008. Google Scholar
Carpinelli G, Caramaa P, Di Vito E, Losi A, Verde P, Probabilistic Evaluation of the Economical Damage due to Harmonic Losses in Industrial Energy System, IEEE Transactions on Power Delivery, 1996; 11:1021–1031. Google Scholar
IEEE STANDARD C27.1920. Google Scholar
Rak J, Gała M, Jagieła K, Kępiński M, Analiza obciążenia i strat w transformatorach przekształtnikowych układów napędowych, Zeszyty Problemowe – Maszyny Elektryczne, Nr 89/2011. Google Scholar
Jayasinghe NR, Lucas JR, Perera KBIM, Power System Harmonic Effects on Distribution Transformer and New Design considerations for K Factor transformers, IEEE Sri Lanka Annual Sessions, September 2003. Google Scholar
Fuchs EF, Yildrim D, Mack Grady W, Measurement of eddy current loss coefficient pec-r, derating of single-phase transformers and comparison with k-factor approach, IEEE Transaction on Power Delivery, 2000; 15(1):148–154. Google Scholar
Kazimierczuk MK, High-frequency magnetic components, A John Wiley and Sons Ltd., 2009 Google Scholar
Gupta A, Singh R, Computation of Transformer Losses under the Effects of non-sinusoidal Currents, Advanced Computing: An International Journal (ACIJ), 2011; 2(6), 91–104. Google Scholar
Kuśmierek A, Współczynnik obciążenia transformatora zasilającego odbiorniki nieliniowe i jego pomiar, Przegląd Elektrotechniczny, 2004; 6:636–638. Google Scholar
Yazdani-Asrami M, Mirzaie M, Akmal AS, Gholamian SA, Life Estimation of Distribution Transformers Under Non-Linear Loads Using Calculated Loss by 2D-FEM, J. Electrical Systems, 2011; 701:12–24. Google Scholar
Desmet J, Delaere G, Lemcko L, Harmoniczne. Dopuszczalna obciążalność i dobór transformatorów do pracy z prądem odkształconym, Jakość zasilania – poradnik, listopad 2005. Google Scholar
Hanzelka Z, Jakość dostawy energii elektrycznej. Zaburzenia wartości skutecznej napięcia, Wydawnictwa AGH, Kraków 2015. Google Scholar
Bolkowski S, Teoria obwodów elektrycznych, WNT 2012. Google Scholar
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2018 University of Applied Sciences in Tarnow, Poland & Authors
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.