Simulation Analysis of Temperature Distribution of Oil-immersed Self-cooled Transformer under Different Environmental Conditions

The operational state of the transformer is generally limited by temperature rise of oil. The environment and installation conditions of transformer have a great impact on its heat dissipation, which means it affects the load capacity of the transformer. In this paper, the CFD model is built to simulate and analyze the temperature distribution of transformer under different installation conditions and external environment. According to the simulation results, the load capacity of the transformer under special environmental conditions can be estimated, and a theoretical basis for optimizing the heat dissipation, ventilation and layout of transformer is provided.