New selective earth faults only current directional method for isolated neutral systems

Granizo Arrabe, Ricardo; Blánquez, F.R.; Rebollo López, Emilio y Platero Gaona, Carlos Antonio (2012). New selective earth faults only current directional method for isolated neutral systems. En: "11th International Conference on Environment and Electrical Engineering (EEEIC)", 18/05/2012 - 25/05/2012, Venice, Italy. pp. 451-455. https://doi.org/10.1109/EEEIC.2012.6221420.

Descripción

Título: New selective earth faults only current directional method for isolated neutral systems
Autor/es:
  • Granizo Arrabe, Ricardo
  • Blánquez, F.R.
  • Rebollo López, Emilio
  • Platero Gaona, Carlos Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 11th International Conference on Environment and Electrical Engineering (EEEIC)
Fechas del Evento: 18/05/2012 - 25/05/2012
Lugar del Evento: Venice, Italy
Título del Libro: 11th International Conference on Environment and Electrical Engineering (EEEIC)
Fecha: 2012
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Eléctrica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In order to achieve total selectivity at electrical distribution networks it is of great importance to analyze the defect currents at ungrounded power systems. This information will help to grant selectivity at electrical distribution networks ensuring that only the defect line or feeder is removed from service. In the present work a new selective and directional protection method for ungrounded power systems is evaluated. The new method measures only defect currents to detect earth faults and works with a directional criterion to determine the line under faulty conditions. The main contribution of this new technique is that it can detect earth faults in outgoing lines at any type of substation avoiding the possible mismatch of traditional directional earth fault relays. This detection technique is based on the comparison of the direction of a reference current to the direction of all earth fault capacitive currents at all the feeders connected to the same bus bars. This new method has been validated through computer simulations. The results for the different cases studied are remarkable, proving total validity and usefulness of the new method.

Más información

ID de Registro: 20462
Identificador DC: http://oa.upm.es/20462/
Identificador OAI: oai:oa.upm.es:20462
Identificador DOI: 10.1109/EEEIC.2012.6221420
Depositado por: Memoria Investigacion
Depositado el: 25 Feb 2014 18:12
Ultima Modificación: 21 Abr 2016 23:17
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