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Directional Pilot Relaying

Basic Principles—Pilot Wire Schemes—Carrier Channel Schemes—Carrier Signal Checking—Future Trends
  • A. R. van C. Warrington

Abstract

A ‘unit’ form of protection may be used when it is important to clear all faults simultaneously at both ends of the protected section of line, such as when high-speed automatic reclosing is used. For unit protection it is necessary to exchange information about the fault conditions at each end of the protected section and either a pilot-wire or a carrier channel is used for this purpose.

Keywords

Fault Detector Carrier Signal Fault Current Protective Relay Ground Fault 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 8.
    Cordray, R. E. and Warrington, A. R. van C. ‘The Mho Carrier Relaying Scheme’, Transactions A.I.E.E., 63, 1944, pp. 228–235. Disc, p. 434.CrossRefGoogle Scholar
  2. 74.
    Traver, O. C., Auchincloss, J. and Bancker, E. H. ‘Pilot Protection by Power Directional Relays Using Carrier Current’, G.E. Review, 35, No. 11, November, 1932, pp. 566–570.Google Scholar
  3. 75.
    Chakin, Saul W. ‘Mechanics of Electrical Contact Failure caused by Surface Contamination’, Electro-Technology, August, 1961.Google Scholar
  4. 82.
    Leyland, S. C. and Goldsborough, S. L. ‘The Functions of Ground Preference in Carrier Current Relay Schemes’, A.I.E.E. Journal, March, 1944, p. 97.Google Scholar
  5. 95.
    Neher, J. H. ‘D.C. Pilot Loop Protects 66 kV Cable Circuits’, Electrical World, 101, March 25th, 1933, pp. 384–387.Google Scholar
  6. 131.
    Seeley, H. T. and Kiss, M. A. ‘All Electronic One Cycle Carrier Relaying System’, Power Apparatus and Systems, A.I.E.E., April, 1954, pp. 161–195, together with three other papers on the same subject by Messrs. Barnes, H. C. and Kennedy, L. F., Hodges, M. E. and Macpherson, R. H., Price, W. S. and Cordray, R. E.Google Scholar

Copyright information

© Albert Russell van Cortlandt Warrington 1968

Authors and Affiliations

  • A. R. van C. Warrington
    • 1
  1. 1.The English Electric Company LimitedStaffordUK

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