2022
DOI: 10.2298/tsci211015041l
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Analysis of external heat dissipation enhancement of oil-immersed transformer based on falling film measure

Abstract: With the increase of power load, the overheating problem of oil-immersed transformer in operation cannot be ignored. Therefore, it is necessary to propose reasonable heat dissipation enhancement measure for oil-immersed transformer in operation and study the influence of the measure on the internal temperature of transformer. The heat transfer process of oil-immersed transformer is analyzed, and the air-side heat transfer coefficient is pointed out to be the important parameter limiting the h… Show more

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Cited by 2 publications
(1 citation statement)
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“…Liu [8] and Liang [9] , for the heat dissipation effect of the transformer, adopt forced air cooling measures, and use aerodynamics to control the temperature or speed of the wind to achieve the purpose of cooling. Li [10] and others use the falling film method to cool the top oil temperature and hot spot temperature. This falling film method can reduce the above temperature by a large extent and meet the load requirements of oil-immersed transformer.…”
Section: Introductionmentioning
confidence: 99%
“…Liu [8] and Liang [9] , for the heat dissipation effect of the transformer, adopt forced air cooling measures, and use aerodynamics to control the temperature or speed of the wind to achieve the purpose of cooling. Li [10] and others use the falling film method to cool the top oil temperature and hot spot temperature. This falling film method can reduce the above temperature by a large extent and meet the load requirements of oil-immersed transformer.…”
Section: Introductionmentioning
confidence: 99%