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Description
  • Pro spolehlivostní výpočty se v ČR běžně používají hodnoty poruchovosti založené na exponenciálním rozdělení intenzity poruch. Tento přístup má nevýhodu v tom, že pravděpodobnost poruchy (hazardní funkce je konstanta). Ve skutečnosti ale dochází ke stárnutí prvků, kdy jejich poruchovost s časem roste. Tento článek si klade za cíl popis Weibullovského rozdělení doby do poruchy prvků (resp. intenzity poruch), které uvažuje stárnutí, a především výsledné hodnoty poruchovosti pro kabely a některé spínací prvky zjištěné ze statistické analýzy poruchových dat. Zpracování bylo provedeno na údajích o poruchách většiny českých a některých slovenských distributorů elektrické energie. (cs)
  • Virtually the failure rate rises as the components wear-out. Aim of this paper is description of Weibull probability density function (pdf) of time-to-failure and mainly results of statistical failure analysis of some unit. Weibull analysis includes component aging. Analysis was done on failure data (years 2000 to 2004) from some Czech and Slovak electricity distribution companies. Results can be used for reliability simulations of electrical networks. Research of electrical power system reliability began in 40ties of past century in USA, later in former Soviet Union and Great Britain. Electrical power system reliability has researched in all advanced world countries since 50ties. In former Czechoslovakia reliability of electrical power systems was first time discussed as late as sixties of past century. Failures and outages database was created 1975-1990
  • Virtually the failure rate rises as the components wear-out. Aim of this paper is description of Weibull probability density function (pdf) of time-to-failure and mainly results of statistical failure analysis of some unit. Weibull analysis includes component aging. Analysis was done on failure data (years 2000 to 2004) from some Czech and Slovak electricity distribution companies. Results can be used for reliability simulations of electrical networks. Research of electrical power system reliability began in 40ties of past century in USA, later in former Soviet Union and Great Britain. Electrical power system reliability has researched in all advanced world countries since 50ties. In former Czechoslovakia reliability of electrical power systems was first time discussed as late as sixties of past century. Failures and outages database was created 1975-1990 (en)
Title
  • Parameters of Weibull analysis for some parts of electricity distribution network
  • Parametry Weibullowy analýzy pro některé součásti elektrické distribuční sítě (cs)
  • Parameters of Weibull analysis for some parts of electricity distribution network (en)
skos:prefLabel
  • Parameters of Weibull analysis for some parts of electricity distribution network
  • Parametry Weibullowy analýzy pro některé součásti elektrické distribuční sítě (cs)
  • Parameters of Weibull analysis for some parts of electricity distribution network (en)
skos:notation
  • RIV/61989100:27240/06:00013740!RIV08-AV0-27240___
http://linked.open.../vavai/riv/strany
  • 8-9
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  • P(1ET100300414)
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  • 491481
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  • RIV/61989100:27240/06:00013740
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  • Weibull Analysis; Time-to-Failure; Hazard Function; Electricity Distribution System (en)
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  • [2E5A4685928E]
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  • Zlín
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  • Conference Proceedings Control of Power & Heating Systems 2006
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  • Sikora, Tadeusz
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  • Univerzita Tomáše Bati ve Zlíně. Fakulta aplikované informatiky
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  • 80-7318-409-5
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  • 27240
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