Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis
|dc.identifier.citation||Zhao, 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 . Core deformation and winding movement may be caused by severe electromagnetic forces generated during short circuit faults  -. 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  . 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 . 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.publisher||Institute of Electrical and Electronics Engineers|
|dc.title||Toward reliable interpretation of power transformer sweep frequency impedance signatures: Experimental analysis|
|dcterms.source.title||IEEE Electrical Insulation Magazine|
|curtin.department||School of Electrical Engineering, Computing and Mathematical Science (EECMS)|
|curtin.accessStatus||Fulltext not available|
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