@inproceedings{1fc85d3f052b4ccda0dfac979bc384e2,
title = "Reduction of power grid losses by using energy efficient distribution transformers",
abstract = "The importance of distribution transformer no-load loss on the operation of modern electrical grids is often underestimated. Internationally, distribution transformer no-load loss constitutes nearly 25\% of the transmission and distribution losses of electrical grids. The losses in European Union distribution transformers are estimated at about 33 TWh/year whereas, reactive power and harmonic losses add a further 5 TWh/year. In the Greek electrical grid the no-load losses of 140,000 distribution transformers are estimated at about 490 GWh/year. This paper has two goals the first one is to illustrate the significance of distribution transformer no-load loss in periods of high electric energy cost and the second goal is the presentation of a novel numerical methodology for wound core transformers no-load loss analysis, enabling to determine the economically and technically optimum transformer for every use.",
keywords = "Computer aided analysis, Finite element methods, Magnetic cores, Nonlinear magnetics, Numerical analysis, Power transformers",
author = "Kefalas, \{Themistoklis D.\} and Kladas, \{Antonios G.\}",
year = "2012",
doi = "10.4028/www.scientific.net/MSF.721.269",
language = "English",
isbn = "9783037854204",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "269--274",
editor = "Mamalis, \{A. G.\} and A. Kladas and M. Enokizono",
booktitle = "Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials",
note = "7th Japanese-Mediterranean and Central European Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials, JAPMED'7 ; Conference date: 06-07-2011 Through 09-07-2011",
}