A Novel Ground Fault Non-Directional Selective Protection Method for Ungrounded Distribution NetworksReportar como inadecuado




A Novel Ground Fault Non-Directional Selective Protection Method for Ungrounded Distribution Networks - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Department of Electrical Engineering, Escuela Técnica Superior Ingenieros Industriales, Technical University of Madrid, C-José Gutierrez Abascal, 2, Madrid 28006, Spain





*

Author to whom correspondence should be addressed.



Academic Editor: Josep M. Guerrero

Abstract This paper presents a new selective and non-directional protection method to detect ground faults in neutral isolated power systems. The new proposed method is based on the comparison of the rms value of the residual current of all the lines connected to a bus, and it is able to determine the line with ground defect. Additionally, this method can be used for the protection of secondary substation. This protection method avoids the unwanted trips produced by wrong settings or wiring errors, which sometimes occur in the existing directional ground fault protections. This new method has been validated through computer simulations and experimental laboratory tests. View Full-Text

Keywords: earth faults; protection; distribution protections; electrical distribution networks earth faults; protection; distribution protections; electrical distribution networks





Autor: Ricardo Granizo * , Francisco R. Blánquez, Emilio Rebollo and Carlos A. Platero

Fuente: http://mdpi.com/



DESCARGAR PDF




Documentos relacionados