Transient Recovery Voltage in the Short Line Fault Regime

  • M. B. Humphries
Part of the Earlier Brown Boveri Symposia book series (EBBS)

Summary

The basic phenomenon of the short line fault transient is outlined in relation to the line and source side oscillations. The concept of the typical sawtooth line oscillation is analysed in detail with respect to the line high frequency parameters. The equivalent line surge impedances are then considered in depth for both sequence and modal analysis and the effects of the line physical characteristics, such as conductor clashing, are examined.

The effect of line terminal capacitance is shown to reduce the severity of the transient, although the benefit is partially offset by the presence of line traps. Other related aspects, such as arc resistance and current asymmetry, are briefly considered. Additional terminal capacitance in the form of a short cable termination or shunt capacitor may be used to control the short line fault severity. Finally the relative severities of the line oscillation for single and three phase earthed faults are examined in relation to the ratio of the source 50 Hz zero and positive sequence impedances.

Keywords

Circuit Breaker Fault Current Overhead Line Line Trap Source Side 
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. 1.
    E. Bolton, M. J. Battisson, J. P. Bickford, M. G. Dwek, R. L. Jackson, M. Scott, Proc. IEE 117 (1970) 771Google Scholar
  2. 2.
    R. G. Colclaser, L. E. Berkebile, D. E. Buettner, IEEE Trans. PAS 90 (1971) 660CrossRefGoogle Scholar
  3. 3.
    Surge Impedance of Overhead Lines with Bundle Conductors during Short-Line Faults’. Paper presented by CIGRE Working Group 13–01, Electra No. 17Google Scholar
  4. 4.
    R. G. Colclaser, J. E. Beehler, T. F. Garrity, IEEE Trans. PAS 94 (1975) 1943CrossRefGoogle Scholar
  5. 5.
    H. Ohno, K. Nakanishi, Electrical Engineering in Japan 88 (1968) 79Google Scholar
  6. 6.
    L. Ferschl, H. Koppling, H. H. Schramm, E. Slamecka, J. D. Welly. ‘Theoretical and Experimental Investigations of Compressed Gas Circuit Breakers under Short-Line Fault Conditions’, CIGRE Paper No. 13–07, 1974Google Scholar
  7. 7.
    M. G. Dwek, E. Bolton, D. Birthwhistle, P. Bownes, G. W. Routledge. ‘Overhead Line Parameters for Circuit Breaker Applications’, CEGB Internal Report PL-ST/22/72Google Scholar
  8. 8.
    R. L. Jackson, J. G. Steel, ‘The Attraction of Bundle Overhead Line conductors under Fault Conditions’, CERL Report No. RD/L/R 1656, 1970Google Scholar
  9. 9.
    R. H. Galloway, W. B. Shorrocks, L. M. Wedepohl, Proc. IEE 111 (1964) 2051Google Scholar

Copyright information

© Springer Science+Business Media New York 1978

Authors and Affiliations

  • M. B. Humphries
    • 1
  1. 1.Central Electricity Generating BoardLondonEngland

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