Thermal modeling of power substations using the finite element method

In this paper the thermal behaviour of distribution power substations is examined. Typical substation and transformer designs are modeled and their thermal behaviour is simulated using the finite element method. The results obtained are compared with on-site measurements in order to verify the model used. The effect of several design parameters is subsequently analysed. Therefore, it is possible to provide design guidance and test possible design options before these are approved for construction. Furthermore, it is possible using the model developed to carry out a sensitivity analysis by examining the effect of varying several parameters (the size and shape of the openings, the material of construction etc). The paper compares measured and simulation results, which verify that the predictions of the simulation are in good agreement with on-site measurements.