Weight Comparison of Oil and Dry Type Distribution Transformers

Authors: Murat Toren, Mehmet Çelebi

Abstract:

Reducing the weight of transformers while providing good performance, cost reduction and increased efficiency is important. Weight is one of the most significant factors in all electrical machines, and as such, many transformer design parameters are related to weight calculations. This study presents a comparison of the weight of oil type transformers and dry type transformer weight. Oil type transformers are mainly used in industry; however, dry type transformers are becoming more widespread in recent years. MATLAB is typically used for designing transformers and design parameters (rated voltages, core loss, etc.) along with design in ANSYS Maxwell. Similar to other studies, this study presented that the dry type transformer option is limited. Moreover, the commonly-used 50 kVA distribution transformers in the industry are oil type and dry type transformers are designed and considered in terms of weight. Currently, the preference for low-cost oil-type transformers would change if costs for dry-type transformer were more competitive. The aim of this study was to compare the weight of transformers, which is a substantial cost factor, and to provide an evaluation about increasing the use of dry type transformers.

Keywords: Weight, oil-type transformers, dry-type transformers.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339392

References:

[1] Khan, A.Z., “Electrical Energy Conservation and Its Application to a Sheet Glass Industry”, IEEE Transaction on Energy Conversation, Vol. 11, No 3, 1996, pp.66-671.
[2] Boduroğlu, T., 1988. “Elektrik makineleri Dersleri Cilt 1, Transformatörler”. Beta Basım, Istanbul.
[3] Çelebi, M., “Genetik Algoritma ile Kuru Bir Trafonun Ağırlık Optimizasyonu ve Sonlu Elemanlar Metodu ile Analizi”, KSÜ Journal of Engineering Sciences, vol. 12(2), 2009, pp. 30-36.
[4] Demir, H., “Kuru tip transformatörün parçacık suru optimizasyonu ile ağırlık optimizasyonu”, June 2011, Msc Thesis, DU., F.B.E
[5] Lee, M., Abdullah, H.A., Jofriet J. C., Patela, D., Fahrioglu, M., “Air temperature effect on thermal models for ventilated dry-type transformers”, Electric Power Systems Research, 2011, pp.783-789.
[6] Ozturk, A., Demir, H., Kuru, L., Tosun, S., Kuru E., “Weight optimization of a core form oil transformer by using heuristic search algorithms”. Journal of Engineering Research and Applied Science, vol. 1(1), 2012, pp. 44-54.
[7] Tosun S., Oztürk A.,Demir H., Kuru L.,”Weight optimization of Dry–Type Transformer with Taboo Algorithm” Vol. 1, No. 1, 2012, pp.17-26.
[8] Mamizadeh, A., Iskender, I.,” Winding Thermal Analyzing Of Dry Type Transformers” International Journal on Technical and Physical Problems of Engineering, vol.2, no. 4, 2010, pp. 80-84.