Improving the efficiency of power transformers by intensifying their cooling during operation
https://doi.org/10.21822/2073-6185-2025-52-1-31-38
Abstract
Objective. The aim of the study is to develop recommendations for optimizing cooling systems for power transformers in order to increase their efficiency and reduce losses during electric power transformation.
Method. The study included a thermodynamic and comparative analysis of existing methods of cooling electric transformers in order to identify the advantages and disadvantages of cooling systems.
Result. Various cooling schemes and transformation heat recovery systems are presented. It is substantiated that there are low-temperature systems that can significantly improve the technical characteristics of a transformer without resorting to such low temperatures. Considering the peculiarity of freon refrigeration machines, when a refrigerating agent, for example, R134a and lubricating oil mutually dissolve in each other, forming a "two-layer cake", and fill the entire refrigeration system, a transformer can be considered an element of a refrigeration machine (evaporator).
Conclusion. The use of innovative cooling methods can significantly improve the efficiency of electric transformers while simultaneously increasing their efficiency.
About the Authors
M. V. Shamarov
Kuban State Technological University
Russian Federation
Russian Federation
Maxim V. Shamarov, Cand. Sci. (Eng.), Assoc. Prof., Assoc. Prof., Department of Technological Equipment and Life Support Systems,
12 Moskovskaya St., Krasnodar 350072
V. I. Aleshin
Kuban State Technological University
Russian Federation
Russian Federation
Vladimir I. Aleshin, Cand. Sci. (Eng.), Assoc. Prof., Assoc. Prof., Department of Technological Equipment and Life Support Systems,
12 Moskovskaya St., Krasnodar 350072
I. A. Kalmykov
Kuban State Technological University
Russian Federation
Russian Federation
Ilya A. Kalmykov, 3rd year full-time student,
12 Moskovskaya St., Krasnodar 350072
A. M. Shamarov
G.V. Plekhanov Russian Economic University
Russian Federation
Russian Federation
Artem M. Shamarov, 3rd year full-time student,
236 Stremyanny lane, Moscow 115054
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Review
For citations:
Shamarov M.V., Aleshin V.I., Kalmykov I.A., Shamarov A.M. Improving the efficiency of power transformers by intensifying their cooling during operation. Herald of Dagestan State Technical University. Technical Sciences. 2025;52(1):31-38. (In Russ.) https://doi.org/10.21822/2073-6185-2025-52-1-31-38
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