INFLUENCE OF THE THERMAL DEPENDENCY OF THE CURRENT DENSITY IN THE SOLUTION OF THE HEAT TRANSFER PROBLEM USING THE FINITE ELEMENT APPROACH

In this paper it is proposed a thermal Finite element formulation that accommodates the current density dependency on the resistivity variation with temperature. As an application example, the steady‐state temperature distribution will be produced for a large 3‐phase induction motor as well as the hot spot temperature for different load conditions. The results produced by the proposed Finite element approach will be compared with the solution obtained considering the current density independent of the temperature as well as with experimental data.