Temperature Field and Power Loss Calculation With Coupled Simulations for a Medium-Voltage Simplified Switchgear

The main goal of the present study is to carry out one-way coupled computations of electromagnetics and heat transfer for a simplifed version of a switchgear and to reveal the applicability of the computational approach. In our computation, we introduce the joule losses that we obtain from the electromagnetic computations to a thermal solver as heat load. In order to reach the goal, we compare the temperature values that we obtained at eight diferent measurement points by performing computations and experimental measurements. In general, the distributions of the obtained temperature values are quite similar. The notable diference in the mean values of the obtained temperatures might result from limitations of one-way coupled approach where we have to neglect temperature dependency of the electrical properties during the electromagnetic computations. Index Terms--Computational fuid dynamics, electromagnetic analysis, eddy current loss, natural convection, switchgear