Consideration of Multi-Phase Criterion in the Differential Protection Algorithm for High-Impedance Grounded Synchronous Generators

Blánquez Delgado, Francisco and Rebollo López, Emilio and Granizo Arrabé, Ricardo and Platero Gaona, Carlos Antonio (2013). Consideration of Multi-Phase Criterion in the Differential Protection Algorithm for High-Impedance Grounded Synchronous Generators. In: "12th International Conference on Environment and Electrical Engineering. EEEIC 2013", 05/05/2013 - 08/05/2013, Wroclaw, Poland. ISBN 978-1-4673-3059-6. pp. 135-139.

Description

Title: Consideration of Multi-Phase Criterion in the Differential Protection Algorithm for High-Impedance Grounded Synchronous Generators
Author/s:
  • Blánquez Delgado, Francisco
  • Rebollo López, Emilio
  • Granizo Arrabé, Ricardo
  • Platero Gaona, Carlos Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 12th International Conference on Environment and Electrical Engineering. EEEIC 2013
Event Dates: 05/05/2013 - 08/05/2013
Event Location: Wroclaw, Poland
Title of Book: 12th International Conference on Environment and Electrical Engineering. EEEIC 2013
Date: 2013
ISBN: 978-1-4673-3059-6
Subjects:
Freetext Keywords: Generator protection, stator differential protection, current transformers, saturation detection
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Eléctrica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The generator differential protection is one of the most important electrical protections of synchronous generator stator windings. Its operation principle is based on the comparison of the input current and output current at each phase winding. Unwanted trip commands are usually caused by CT saturation, wrong CT selection, or the fact that they may come from different manufacturers. In generators grounded through high impedance, only phase-to-phase or three-phase faults can be detected by the differential protection. This kind of fault causes differential current to flow in, at least, two phases of the winding. Several cases of unwanted trip commands caused by the appearance of differential current in only one phase of the generator have been reported. In this paper multi-phase criterion is proposed for generator differential protection algorithm when applied to high impedance grounded generators.

More information

Item ID: 29670
DC Identifier: http://oa.upm.es/29670/
OAI Identifier: oai:oa.upm.es:29670
Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6549604&tag=1
Deposited by: Memoria Investigacion
Deposited on: 13 May 2015 15:51
Last Modified: 18 Dec 2018 07:57
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