Oliveira, L. M. R.Cardoso, A. J. Marques2009-02-132009-02-132002Proceedings of the 9th International Electrical Insulation Conference (INSUCON 2002). - Berlin, 18-20 June 2002. - p. 16-21AUT: LOL01124;http://hdl.handle.net/10400.1/27This paper presents a non-invasive approach for diagnosing winding insulation failures in three-phase transformers, which is based on the on-line monitoring of the primary and secondary current Park's Vector. Experimental and simulated results demonstrate the effectiveness of the proposed technique, for detecting winding inter-turn insulation faults in operating three-phase transformers.application/pdfengMáquinas eléctricasjournal article