Oliveira, L. M. R.Cardoso, A. J. MarquesCruz, S. M. A.2009-02-132009-02-132002Conference Record of the 15th International Conference on Electrical Machines (ICEM 2002). - Brugge, 25-28 August 2002. - 6 pAUT:LOL01124;http://hdl.handle.net/10400.1/55This paper presents the development of a new approach for diagnosing the occurrence of inter-turn short-circuits in the windings of three-phase transformers, which is based on the on-line monitoring of the on-load exciting current Park's Vector patterns. 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 eléctricas621.313journal article