Estimation of no-Load Losses in Distribution Transformer Design Finite Element Analysis Techniques in Transformer Design

The core losses account for about 70% of the total transformer losses, which makes it a fundamental consideration when designing transformers. This paper presents the utilization of an efficient approach to determine the magnitude of no-load losses by applying Finite Element Analysis (FEA) software techniques. The AC magnetics simulation of the transformer core and winding was done in FEA software and the simulated noload losses were compared with practical measurement result. It showed that the simulated result deviated by 10% decrease in noload loss to that of the measurement. Hence, choosing the FEA techniques in transformer design can improve the no-load loss optimization.