Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing
One of the main drawbacks of the frequency response analysis (FRA) technique that is widely accepted as the most reliable tool to detect transformer internal mechanical deformations is the inconsistent interpretation of the measured signature because of its reliance on personal expertise more than s...
| Main Authors: | , |
|---|---|
| Format: | Journal Article |
| Published: |
Institution of Engineering and Technology
2018
|
| Online Access: | http://hdl.handle.net/20.500.11937/69867 |
| _version_ | 1848762154427088896 |
|---|---|
| author | Abu-Siada, Ahmed Aljohani, O. |
| author_facet | Abu-Siada, Ahmed Aljohani, O. |
| author_sort | Abu-Siada, Ahmed |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | One of the main drawbacks of the frequency response analysis (FRA) technique that is widely accepted as the most reliable tool to detect transformer internal mechanical deformations is the inconsistent interpretation of the measured signature because of its reliance on personal expertise more than standard codes. Moreover, conventional FRA signature has a very low accuracy in detecting incipient and low mechanical fault levels. In order to avoid inconsistent interpretation for the transformer FRA signatures and improve its accuracy to detect minor fault levels, a reliable automated technique has become essential. This study investigates the feasibility of utilising FRA polar plot to detect minor radial deformation levels within two, three-phase power transformers of different ratings and winding configurations simulated using three-dimensional finite-element analysis software. Simulation results are validated through experimental measurements. Results of this study are also compared with the results obtained for other types of transformer winding deformations that are published in the literature in order to identify unique impact for each fault type on the proposed method. Findings reveal the superiority of the proposed approach over existing conventional technique in terms of accurate identification and quantification for minor transformer winding deformations. |
| first_indexed | 2025-11-14T10:43:03Z |
| format | Journal Article |
| id | curtin-20.500.11937-69867 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:43:03Z |
| publishDate | 2018 |
| publisher | Institution of Engineering and Technology |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-698672018-09-04T00:09:53Z Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing Abu-Siada, Ahmed Aljohani, O. One of the main drawbacks of the frequency response analysis (FRA) technique that is widely accepted as the most reliable tool to detect transformer internal mechanical deformations is the inconsistent interpretation of the measured signature because of its reliance on personal expertise more than standard codes. Moreover, conventional FRA signature has a very low accuracy in detecting incipient and low mechanical fault levels. In order to avoid inconsistent interpretation for the transformer FRA signatures and improve its accuracy to detect minor fault levels, a reliable automated technique has become essential. This study investigates the feasibility of utilising FRA polar plot to detect minor radial deformation levels within two, three-phase power transformers of different ratings and winding configurations simulated using three-dimensional finite-element analysis software. Simulation results are validated through experimental measurements. Results of this study are also compared with the results obtained for other types of transformer winding deformations that are published in the literature in order to identify unique impact for each fault type on the proposed method. Findings reveal the superiority of the proposed approach over existing conventional technique in terms of accurate identification and quantification for minor transformer winding deformations. 2018 Journal Article http://hdl.handle.net/20.500.11937/69867 10.1049/iet-smt.2017.0412 Institution of Engineering and Technology fulltext |
| spellingShingle | Abu-Siada, Ahmed Aljohani, O. Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing |
| title | Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing |
| title_full | Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing |
| title_fullStr | Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing |
| title_full_unstemmed | Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing |
| title_short | Detecting incipient radial deformations of power transformer windings using polar plot and digital image processing |
| title_sort | detecting incipient radial deformations of power transformer windings using polar plot and digital image processing |
| url | http://hdl.handle.net/20.500.11937/69867 |