THE COOLING SOLUTIONS INSIDE A POWER TRANSFIRMER: EXPERIMENTAL RESULTS AND DISCUSSION
Анотація
Transformer is a device that converts AC voltage by means of electromagnetic induction and has no moving parts. It is used for a wide range of applications, and we are so much accustomed to employing this piece of apparatus in practice that sometimes forget about that fact that different mechanical, thermal and electrical processes are going on there, making it get hotter and hotter, in other words, causing thermal damage and decreasing the transformer’s lifetime.
In this paper we will focus on studying the temperature distribution in power transformer components and the possible ways of improving the performance of oil-cooling methods.
Посилання
Fonte C. CFD analysis of core type power transformers / Carlos M. Fonte, Jose Carlos B. Lopes, Madalena M. Dias, Renato G. Sousa, Hugo M. Campelo, R. Castro Lopes // 21st International Conference on Electricity Distribution, CIRED. – Frankfurt, 6-9 June 2011, Paper No 0361. – 4 p.
Kassi K. S. Aging effect on oil cooling capacity of a non-guided disc windings power transformer / K. S. Kassi, I. Fofana I., M. I. Farinas, C. Volat // Proceedings of 2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Michigan, USA, 18-21 October 2015. – P.804-807.
Yatsevsky V. A. Hydrodynamics and heat transfer in cooling channels of oil-filled power transformers with multicoil windings / Vitaly A. Yatsevsky // Applied Thermal Engineering, 63(2014). – P. 347-353.
Chereches N-C. Numerical study of cooling solutions inside a power transformer / Nelu-Cristian Chereches, Monica Chereches, Livia Miron, Sebastian Hudisteanu // Energy Procedia 112 (2017). – P. 314-321.
Kim M. Prediction and evaluation of the cooling performance of radiators used in oil-filled power transformer applications with non-direct / Min-gu Kim, Sang Moon Cho, Joong-Kyoung Kim // Experimental Thermal and Fluid Science, Volume 44, January 2013. – P. 392–397.
