Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis
Power transformers play a significant role in maintaining the reliability of electrical power transmission and distribution networks. The probability that a transformer will fail increases with the aging of its insulation system [1]. Core deformation and winding movement may be caused by severe elec...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Institute of Electrical and Electronics Engineers
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/67902 |
| _version_ | 1848761689508413440 |
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| author | Zhao, X. Yao, C. Zhang, C. Abu-Siada, Ahmed |
| author_facet | Zhao, X. Yao, C. Zhang, C. Abu-Siada, Ahmed |
| author_sort | Zhao, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Power transformers play a significant role in maintaining the reliability of electrical power transmission and distribution networks. The probability that a transformer will fail increases with the aging of its insulation system [1]. Core deformation and winding movement may be caused by severe electromagnetic forces generated during short circuit faults [2] -[5]. Although a transformer may still work normally with minor axial or radial winding deformations, accumulating effects of these deformations may lead to sudden catastrophic failure of a transformer [6] . According to an international CIGRE survey conducted on power transformers covering the period 1996 to 2010, 19.4% of transformer failures during this period were attributed to windings- related problems [7]. It is therefore essential to assess the mechanical integrity of transformers which have been exposed to severe short circuit faults or lightning, or relocated, and take appropriate remedial action. |
| first_indexed | 2025-11-14T10:35:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-67902 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:35:40Z |
| publishDate | 2018 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-679022018-08-21T06:00:39Z Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis Zhao, X. Yao, C. Zhang, C. Abu-Siada, Ahmed Power transformers play a significant role in maintaining the reliability of electrical power transmission and distribution networks. The probability that a transformer will fail increases with the aging of its insulation system [1]. Core deformation and winding movement may be caused by severe electromagnetic forces generated during short circuit faults [2] -[5]. Although a transformer may still work normally with minor axial or radial winding deformations, accumulating effects of these deformations may lead to sudden catastrophic failure of a transformer [6] . According to an international CIGRE survey conducted on power transformers covering the period 1996 to 2010, 19.4% of transformer failures during this period were attributed to windings- related problems [7]. It is therefore essential to assess the mechanical integrity of transformers which have been exposed to severe short circuit faults or lightning, or relocated, and take appropriate remedial action. 2018 Journal Article http://hdl.handle.net/20.500.11937/67902 10.1109/MEI.2018.8300443 Institute of Electrical and Electronics Engineers restricted |
| spellingShingle | Zhao, X. Yao, C. Zhang, C. Abu-Siada, Ahmed Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis |
| title | Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis |
| title_full | Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis |
| title_fullStr | Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis |
| title_full_unstemmed | Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis |
| title_short | Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis |
| title_sort | toward reliable interpretation of power transformer sweep frequency impedance signatures: experimental analysis |
| url | http://hdl.handle.net/20.500.11937/67902 |