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dc.contributor.authorZhao, X.
dc.contributor.authorYao, C.
dc.contributor.authorZhang, C.
dc.contributor.authorAbu-Siada, Ahmed
dc.identifier.citationZhao, X. and Yao, C. and Zhang, C. and Abu-Siada, A. 2018. Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis. IEEE Electrical Insulation Magazine. 34 (2): pp. 40-51.

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.

dc.publisherInstitute of Electrical and Electronics Engineers
dc.titleToward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis
dc.typeJournal Article
dcterms.source.titleIEEE Electrical Insulation Magazine
curtin.departmentSchool of Electrical Engineering, Computing and Mathematical Science (EECMS)
curtin.accessStatusFulltext not available

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