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Comparative Impact Analysis of Tap Winding Order and Configuration on Transformer Short-Circuit Inductance
Mahsa Taghilou , Mojtaba Mirsalim
Abstract:   (165 Views)
In contemporary power systems, it is crucial to ensure stable voltage levels to mitigate the fluctuations resulting from diverse load conditions. On-load tap changers (OLTCs) play a pivotal role in addressing these fluctuations by dynamically adjusting the number of turns in the transformer winding. This study investigates the integration of OLTCs within transformer designs, focusing on various methodologies related to tap winding order and configurations, which are vital for both electrical and magnetic performance. A comprehensive review of the operational principles governing different types of OLTCs is provided, highlighting their significance in voltage regulation. Furthermore, this paper analyzes the impact of linear OLTC winding order on the short-circuit impedance of a 30 MVA transformer. The findings underscore the importance of OLTC selection and design in optimizing transformer performance.
 
Keywords: On-load tap changers, short-circuit impedance, winding order and configuration
Full-Text [PDF 5927 kb]   (92 Downloads)    
Type of Study: Only for Articles of ICEMD2024 | Subject: Power Transformers
Received: 2025/03/17 | Revised: 2025/12/11 | Accepted: 2025/07/21
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Creative Commons License
© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.