Thermal Analysis of Different Design of Transformer Fins


  • Ashish Davande M.Tech Scholar, Department of Mechanical Engineering, Trinity Institute of Technology & Research, Bhopal, M.P, India
  • Animesh Singhai Assistant Professor, Department of Mechanical Engineering, Trinity Institute of Technology & Research, Bhopal, M.P,India



Electrical Transformer; Cooling Performance; Distribution Transformer; Transformer Cooling;


Electrical power transformer is a static device which transforms electrical energy from one circuit to another without any direct electrical connection and with the help of mutual induction between two windings. It transforms power from one circuit to another without changing its frequency but may be in different voltage level. A power transformer is the electrical device which is used to change the voltage of AC in power transmission system. The first transformer in the world was invented in 1840s. Modern large and medium power transformers consist of oil tank with oil filling in it, the cooling equipment on the tank wall and the active part inside the tank.

The working principle of transformer is very simple. It depends upon Faraday’s law of electromagnetic induction. Actually, mutual induction between two or more winding is responsible for transformation action in an electrical transformer. According to these Faraday’s laws, “Rate of change of flux linkage with respect to time is directly proportional to the induced EMF in a conductor or coil.

As one kind of electrical components, an ideal transformer has no energy losses. However, in reality, a transformer cannot reach a 100% efficient. The main losses come from the winding resistance thermal loss, the eddy current loss and the hysteresis loss For liquid immersed transformer, the active part including cores and windings is immersed in some insulating liquid, usually the transformer oil, filling in the transformer. The heat generated by windings and cores will be transferred to the transformer wall by convection. Then, the heat will dissipate into the environment by radiation and convection. Usually, for some large transformers, fins and radiators are applied for improving the cooling capability. A typical example of the liquid immersed transformers is the large oil immersed transformer in which a blower is installed forcing the circulating air to enhance the cooling effects.


Download data is not yet available.


Mushtaq Ismael Hasan-“Using the transformer oil-based nanofluid for cooling of power distribution transformer” International Journal of Energy and Environment, Volume 8, Issue 3, 2017 pp.229-238.

Jackwin Vincent K, Dr.V.V.Prathibha Bharathi-“Simulation and Optimization of Cooling Tubes of Transformer for Efficient Heat Transfer” International Journal of Advanced Engineering, Management and Science (IJAEMS), Vol-3, Issue-2, Feb- 2017.

Sachin. B. Paramane, Wim Van der Veken, Atul Sharma, Joris Coddé, “Effect of fan arrangement and air flow direction on thermal performance of radiators in a power transformer” Journal of Power Technologies (Accepted Manuscript, pp. 1–8, 2016.

S Anishek, Sony R , Jayadeep Kumar J , Pradeep M Kamath, “Performance Analysis and Optimisation of an Oil Natural Air Natural Power Transformer Radiator”International Conference on Emerging Trends in Engineering, Science and Technology, pp. 428 – 435, 2016.

Robert Sitar, Zarko Jani, and ZeljkoStih, “Improvement of thermal performance of generator step-up transformers”, Applied Thermal Engineering 78, pp. 516-524, 2015.

PanitanTampinyo, Chainarong Srikunwong-“Numerical Simulation of Heat Transfer Process in Oil-Immersed Transformer” International Conference on Mechanical Engineering17-19th December 2014.

M.-g. Kim, S. M. Cho, J.-K. Kim, Prediction and evaluation of the cooling performance of radiators used in oil-filled power transformer applications with non-direct and direct-oil-forced flow, Experimental Thermal and Fluid Science 44, pp. 392–397, 2013.

Mobin Sefidgaran, Mohammad Mirzaie, and Ataollah Ebrahimzadeh, 2012, “Reliability model of the power transformer with ONAF cooling”, Electrical Power and Energy Systems 35, 97–104, 2012.

Jon Gastelurrutia a,*, Juan Carlos Ramos a, Gorka S. Larraona a, Alejandro Rivas a, JosuIzagirre b,Luis del Río-“Numerical modelling of natural convection of oil inside distribution transformers “Applied Thermal Engineering 31, pp. 493-505, 2012.

W. Wu1 Z.D. Wang1 A. Revell2 H. Iacovides2 P. Jarman-“Computational fluid dynamics calibration for network modelling of transformer cooling oil flows – part Heat transfer in oil ducts”IET Electr. Power Appl., Vol. 6, Issues. 1, pp. 19 –27, 2012.

E. Hajidavalloo, M. Mohamadianfard, Effect of sun radiation on the thermal behavior of distribution transformer, Applied Thermal Engineering 30, pp. 1133-1139, 2010.

E. I. Amoiralis, P. S. Georgilakis, M. A. Tsili, A. G. Kladas, Global transformer optimization method using evolutionary design and numerical field computation, Magnetics, IEEE Transactions on 45 (3), 1720–1723, 2009.




How to Cite

Davande, A., & Singhai, A. (2017). Thermal Analysis of Different Design of Transformer Fins. SMART MOVES JOURNAL IJOSCIENCE, 3(9), 9–12.