Application of Park's power components to the differential protection of three-phase transformers

Oliveira, L. M. R.; Cardoso, A. J. Marques

http://hdl.handle.net/10400.1/3998

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Authors

Oliveira, L. M. R.

Cardoso, A. J. Marques

Abstract(s)

This paper presents a new scheme for power transformers differential protection, in which the concept of the Park's instantaneous differential powers is introduced. The proposed method is able to detect winding insulation failures and to distinguish them from magnetizing inrush current transients. Experimental and simulation results are presented and discussed.

Keywords

Differential protection Incipient winding faults Inrush currents Park's vector p–q power theory Transformers

URI

http://hdl.handle.net/10400.1/3998

Citation

Oliveira, L.M.R.; Cardoso, A.J.M.Application of Park's power components to the differential protection of three-phase transformers, Electric Power Systems Research, 83, 1, 203-211, 2012.