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Ensuring Correct Functioning of Remote Protection of a Power Line Under Conditions of Saturation of Current Transformers

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Power Technology and Engineering Aims and scope

The results of studying the effect of saturation of class P current transformers (CT) in transient modes for actuating the impedance relay of the first stages of remote protection against single-phase short circuits are presented. Various connection configurations of the CT to the resistance relay are examined. Methods of increasing the selectivity and speed of action of the specified protections in the modes under study are substantiated.

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References

  1. State Standard GOST 7746–2015. Current transformers. General specifications [in Russian].

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  5. Multilin Power Management Lentronics. CT requirements for GE Multilin relays (R 2) [on-line]: https://ru.scribd.com/doc/47176650/CT-Selection-requirements.

  6. S. L. Kuzhekov and G. S. Nudel’man, “Ensuring proper actuation of differential-protection microprocessor devices during current transformer saturation,” Izv. Vuzov. Élektromekh., No. 4, 7 – 11 (2009).

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Authors and Affiliations

  1. SPC Kvazar LLC, Novocherskassk, Russia

    S. L. Kuzhekov & A. A. Degtyarev

  2. Unified Energy System, Moscow, Russia

    V. S. Vorob’ev & V. V. Moskalenko

Authors
  1. S. L. Kuzhekov
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  2. A. A. Degtyarev
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  3. V. S. Vorob’ev
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  4. V. V. Moskalenko
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Corresponding author

Correspondence to S. L. Kuzhekov.

Additional information

Translated from Élektricheskie Stantsii, No. 6, June 2017, pp. 46 – 53.

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Kuzhekov, S.L., Degtyarev, A.A., Vorob’ev, V.S. et al. Ensuring Correct Functioning of Remote Protection of a Power Line Under Conditions of Saturation of Current Transformers. Power Technol Eng 51, 481–488 (2017). https://doi.org/10.1007/s10749-017-0860-6

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  • DOI: https://doi.org/10.1007/s10749-017-0860-6

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