Journal Pre-proofs Analysis and Interpretation of Power Auto-transformer Winding Axial Dis- placement and Radial Deformation Using Frequency Response Analysis Mojtaba Mahvi, Vahid Behjat, Hossein Mohseni PII: S1350-6307(19)31821-7 DOI: https://doi.org/10.1016/j.engfailanal.2020.104549 Reference: EFA 104549 To appear in: Engineering Failure Analysis Received Date: 27 November 2019 Revised Date: 3 March 2020 Accepted Date: 13 April 2020 Please cite this article as: Mahvi, M., Behjat, V., Mohseni, H., Analysis and Interpretation of Power Auto- transformer Winding Axial Displacement and Radial Deformation Using Frequency Response Analysis, Engineering Failure Analysis (2020), doi: https://doi.org/10.1016/j.engfailanal.2020.104549 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier Ltd.