Optimization and analysis of tapping position on leakage reactance of a two winding transformer

Kamran Dawood*, Oluş Sönmez, Güven Kömürgöz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

To ensure a reliable and stable power supply, optimal design and proper installation of the transformer are essential for the power suppliers and distributors. Short-circuit current is the main parameter of the transformer and causes the failure in the transformers. Accurate calculation and optimization of the leakage reactance help the transformer designers to mitigate against failure during the short circuit conditions. Transformer designers use different tapping positions for the manufacturing of the two-winding tap transformers. This study analysis and optimizes the leakage reactance of the two-winding tap transformer. Leakage reactance behavioral characteristics of the six different tappings are evaluated and examined in this study, including (1) without tapping, (2) upper tapping, (3) lower tapping, (4) middle tapping, (5) lower–upper tapping, (6) side tapping of the low voltage winding using finite element method. The results show that the side tapping has the least impact on the leakage reactance. The results also show that upper tapping and lower tapping have a significant effect on the leakage reactance. The comparison between the finite element method and experimental short-circuit test results for the optimized design also suggests that the finite element models can accurately evaluate the leakage reactance in the two-winding tap transformers.

Original languageEnglish
Pages (from-to)363-369
Number of pages7
JournalAlexandria Engineering Journal
Volume69
DOIs
Publication statusPublished - 15 Apr 2023

Bibliographical note

Publisher Copyright:
© 2023 THE AUTHORS

Funding

This work was supported in part by the BAP-ITU under project number MGA-2020-42527. The authors would like to thank TÜBİTAK for their support. The authors would also like to thank the Sönmez Transformers Company (STS) for the manufacturing of the prototype transformer.

FundersFunder number
BAP-ITUMGA-2020-42527
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu

    Keywords

    • Finite element analysis
    • Leakage inductance
    • Leakage reactance
    • Numerical techniques
    • Optimization
    • Two-winding tap transformer

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