Prediction of the Plastic Deformation of the Transformer Tank at the Time of Vacuum Oiling

진공 주유시 변압기 탱크의 소성발생 예측

The transformer tank is pressurized by atmosphere at the time of vacuum oiling and, plastic deformation occurs at the section of stress concentration on transformer tank at this time. It is important to predict where the sections of stress are in order to prevent deformation and to add reinforcement. This paper presents prediction results where the sections of stress are occurred and whether plastic deformation occur or not, using structure analysis program(ANSYS-design program).