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A new transformer differential protection approach on the basis of space-vectors examination

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Abstract

Transformer differential protection is exposed to faulty operation related to abnormal operation conditions (inrush, overexcitation, etc.). In this paper a new approach to improve the relay security and dependability is proposed, based on the space-vector analysis of the differential signal, and on their time characteristic shapes in Park’s plane. The approach is supported by an introductory formulation and later validated. The technique has been shown to be robust and very simple for the purpose of detecting internal faults.

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Authors and Affiliations

  1. Department of Electrical Engineering: Electronics, Computers and Authomatics, University of Oviedo, Campus de Viesques, 33203 , Gijón, Spain

    Guzmán Díaz, Pablo Arboleya & Javier Gómez-Aleixandre

Authors
  1. Guzmán Díaz
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  2. Pablo Arboleya
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  3. Javier Gómez-Aleixandre
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Correspondence to Guzmán Díaz.

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Díaz, G., Arboleya, P. & Gómez-Aleixandre, J. A new transformer differential protection approach on the basis of space-vectors examination. Electr Eng 87, 129–135 (2005). https://doi.org/10.1007/s00202-004-0231-9

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  • DOI: https://doi.org/10.1007/s00202-004-0231-9

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