Title :
Power transformers behavior under the occurrence of inrush currents and turn-to-turn winding insulation faults
Author :
Oliveira, Luís M R ; Cardoso, A. J Marques
Author_Institution :
High Inst. of Eng., Univ. of Algarve, Faro, Portugal
Abstract :
This paper intends to provide a detailed characterization of the transformer behavior under the influence of inrush currents and/or incipient winding faults. Experimental and simulation results are presented and discussed. Finally, a promising new method to identify inrush currents, and to distinguish them from internal faults, is suggested.
Keywords :
fault diagnosis; power transformer insulation; power transformer protection; incipient winding faults; inrush currents; internal faults; power transformers behavior; turn-to-turn winding insulation faults; Circuit faults; Harmonic analysis; Power transformer insulation; Surge protection; Surges; Windings; Incipient winding faults; inrush currents; protective relaying; transformers;
Conference_Titel :
Electrical Machines (ICEM), 2010 XIX International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4174-7
Electronic_ISBN :
978-1-4244-4175-4
DOI :
10.1109/ICELMACH.2010.5608303
