Influence of the Number of Sections on the Leakage Reactance of the Multi-Winding Transformer

The study of the leakage reactance in power transformers has achieved considerable attention recently; leakage reactance is the key component of the transformer and optimization of the design can also be achieved by evaluating the leakage reactance appropriately. The paper presents a technique for the optimization of the leakage reactance of a transformer with multiple windings on the high-voltage side using the finite element method. The analysis of the influence of the number of sections on the leakage reactance on the transformer was performed based on a three-dimensional model of the transformer. One of the calculated values of the leakage reactance is also compared with the experimental method. The results show that the higher the number of sections on the high-voltage winding of the transformer lowers the leakage reactance will be.