• DocumentCode
    1195531
  • Title

    Relationship between circuit-breaker performance and nozzle blocking, contact evaporation and particle production

  • Author

    Taylor, S. ; Jones, G.R. ; El Kholy, S.M.

  • Author_Institution
    Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
  • Volume
    141
  • Issue
    6
  • fYear
    1994
  • fDate
    11/1/1994 12:00:00 AM
  • Firstpage
    508
  • Lastpage
    512
  • Abstract
    Thermal reignition performance data for a two pressure SF6 model interrupter are presented with peak currents in the range 45-60 kA. Two different nozzle materials and two different test-circuit configurations have been used. The results show a strong correlation between a premature degradation in interrupter failure and the presence of tungsten particles produced from the upstream contact, and present in the contact gap during the current zero period. The relevance of these considerations to contact designs, commonly used in various high-voltage circuit
  • Keywords
    circuit breakers; nozzles; sulphur compounds; 45 to 60 kA; SF6; SF6 model interrupter; W; circuit-breaker performance; contact evaporation; high-voltage circuit; interrupter failure; nozzle blocking; nozzle materials; particle production; peak currents; premature degradation; pressure measurement; test-circuit configurations; thermal reignition; tungsten particles; upstream contact;
  • fLanguage
    English
  • Journal_Title
    Science, Measurement and Technology, IEE Proceedings -
  • Publisher
    iet
  • ISSN
    1350-2344
  • Type

    jour

  • DOI
    10.1049/ip-smt:19941339
  • Filename
    331575
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1195531