Temperature and E-field Model Simulation of Transformer Outlet Based on Computer-based Design

This paper proposed an iterative calculation method of steady-state E-field and thermal simulation of transformer outlet based on the ANSYS specific language called APDL. The joule heating of insulation medium can be considered in temperature field simulation, and the temperature and E-field strength factors can be both considered in the E-field simulation. The research shows: the proposed iterative algorithm has good convergence, and suitable for the large and multi medium insulation structure with complex topology. Based on the traditional calculation method of DC electric field, the auxiliary calculation method is provided for the insulation structure design and performance verification of transformer outlet.