The use of symmetrical components in electrical protection

Catalin-Iosif Ciontea*

*Corresponding author

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

In some situations, the symmetrical components of voltage and current are more sensitive to electric faults compared to their phase-domain counterparts. For this reason, several protection relays operate on symmetrical components and many protection engineers continue to develop protection algorithms that rely on these quantities. This paper reviews the literature on the use of symmetrical components in electrical protection and sorts it in categories covering line protection, generator/motor protection, transformer protection and protection of distribution networks and microgrids. The review shows that symmetrical components are used by over-current/-voltage elements, distance relaying, directional algorithms, differential schemes, adaptive protection and protection algorithms based on relationships of symmetrical components. This paper also presents, in short, the theoretical background of symmetrical components and their derivation from the phase-domain quantities.
Original languageEnglish
Title of host publicationProceedings of 2019 72nd Conference for Protective Relay Engineers (CPRE)
PublisherIEEE Press
Publication dateMar 2019
Article number8765870
DOIs
Publication statusPublished - Mar 2019
Externally publishedYes
Event2019 72nd Annual Conference for Protective Relay Engineers - College Station, United States
Duration: 25 Mar 201928 Mar 2019
https://prorelay.tamu.edu/

Conference

Conference2019 72nd Annual Conference for Protective Relay Engineers
CountryUnited States
CityCollege Station
Period25/03/201928/03/2019
Internet address

Keywords

  • Electrical faults
  • Protection relaying
  • Symmetrical components
  • Positive-sequence
  • Negative-sequence
  • Zero-sequence
  • Unbalanced system conditions
  • symmetrical components
  • positive-sequence
  • zero-sequence
  • electrical faults
  • negative-sequence
  • protection relaying
  • unbalanced system conditions

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  • Cite this

    Ciontea, C-I. (2019). The use of symmetrical components in electrical protection. In Proceedings of 2019 72nd Conference for Protective Relay Engineers (CPRE) [8765870] IEEE Press. https://doi.org/10.1109/CPRE.2019.8765870