Numerical Modeling of Electrical Conduction in Transformer Oil: Insights and Analysis

Electrical conduction within the context of transformer oil stands as a dynamic and effective method widely employed in the research area of electrical engineering, specifically power systems. In this paper, we present and develop an innovative numerical model based on the finite element method to study and analyze electrical conduction in transformer oil. Our model simulates the oil's volumetric conduction process under high voltages, which facilitates the calculation of electrical field and potential distributions. To ensure the robustness and reliability of our numerical model, we undertake a systematic exploration by investigating the impact of various process parameters on shaping the conduction process in transformer oil, along with the analysis of temperature distribution and the effect of the electro-hydro-dynamic (EHD) instability of the transformer oil on its electrical quantities.