Study Of Software For Calculation Of Transformers' Internal Fault Based On ANSYS

With the development of power industry and the use of large-scale power transformers in the power system. a higher demand is required for protection of large-scale power transformers. The transformer internal fault parameters are necessary for the new criterion of power transformers'protection and it's verification, so it is necessary for the parameters'analysis.Winding's inductance is an important parameters in power transformer.We use the finite element analysis software to analyse the internal magnetic field of transformer and calculate the inductance as well as short-circuit reactance parameters. Allege a new self-adapted algorithm based on continuous distribution energy, improved the accuracy of calculation. And verified their correctness and feasibility.Developed a transformer analysis system by VC, set up programs to analyse different varieties of transformers,facilitate researchers who are not familiar with ADPL language.This system can build transformer models simplely, saving costs and improving efficiency of analysis.