Oliveira, L. M. R.Cardoso, A. J. Marques2014-05-262014-05-262008Oliveira, L.M.R.; Cardoso, A.J.M.Intermittent Turn-to-Turn Winding Faults Diagnosis in Power Transformers by the On-Load Exciting Current Park's Vector Approach, Trabalho apresentado em International Conference on Electrical Machines (ICEM 2008), In Proceedings of the 2008 International Conference on Electrical Machines (ICEM 2008), Vilamoura, 2008.978-1-4244-1735-3AUT: LOL01124;http://hdl.handle.net/10400.1/4071This paper presents the application of the on-load exciting current Park's vector approach for diagnosing permanent and intermittent turn-to-turn winding faults in operating power transformers. A digital model for the simulation of the behavior of three-phase transformers affected by the presence of winding faults is also proposed. Experimental and simulated results demonstrate the effectiveness of the proposed diagnostic technique, which is based on the on-line monitoring of the on-load exciting current Park's Vector patterns.engFault diagnosisPower transformersTransformers windingsconference object2014-05-19http:/dx.doi.org/10.1109/ICELMACH.2008.4800049