Comprehensive Simulation Study of Electromagnetic Characteristics of Power Transformers in Nuclear Power Plants

With the continuous development of society, there is an increasing demand for higher transmission voltage levels. To efficiently utilize high-voltage power, a series of transformers are employed to accurately regulate voltage. In the modern era, transformer simulations can be conducted using powerful software, with the finite element method (FEM) being a popular choice due to its flexibility, versatility, and efficient problem-solving capabilities. This study aims to address the limitations encountered in practical engineering applications by analyzing 3D magnetic field simulation results of power transformers operating at 5% and 85% capacity. Additionally, a detailed analysis of electric field conditions in the main insulation of high and low voltage coils is performed under four different operating conditions. The insights gained from these simulation results provide a crucial theoretical foundation and design concepts for power transformers operating in nuclear power plants. Furthermore, these findings hold significant reference value for enhancing the reliability and performance of power transformers in practical applications.