T. Laskowski, L. Hannett, T. E. Kostyniak, C.G. Pounds
{"title":"Calculation of short circuit currents for sizing electrical equipment","authors":"T. Laskowski, L. Hannett, T. E. Kostyniak, C.G. Pounds","doi":"10.1109/IAS.1988.25250","DOIUrl":null,"url":null,"abstract":"Selection of electrical equipment is influenced by the expected magnitudes of the short-circuit currents to which they will be exposed. The widely used application guides ANSI/IEEE C37.010-1979 and C37.5-1979 for AC high-voltage circuit breakers, as well as the IEC standard used in Europe, recommend procedures for determining circuit-breaker duty. These procedures utilize approximate calculations of fault currents. The authors present a method for more accurately approximating fault currents. Calculation of short-circuit currents by the proposed method and by the ANSI method are compared for an industrial power system.<<ETX>>","PeriodicalId":274766,"journal":{"name":"Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting","volume":"398 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IAS.1988.25250","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Selection of electrical equipment is influenced by the expected magnitudes of the short-circuit currents to which they will be exposed. The widely used application guides ANSI/IEEE C37.010-1979 and C37.5-1979 for AC high-voltage circuit breakers, as well as the IEC standard used in Europe, recommend procedures for determining circuit-breaker duty. These procedures utilize approximate calculations of fault currents. The authors present a method for more accurately approximating fault currents. Calculation of short-circuit currents by the proposed method and by the ANSI method are compared for an industrial power system.<>
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