{"title":"Considerations for generator ground fault protection in mid size cogeneration plants","authors":"R. Rifaat","doi":"10.1109/ICPS.1995.527006","DOIUrl":null,"url":null,"abstract":"Generator ground-fault protection aspects are analyzed for midsize cogeneration plants. In these plants, the generators may be connected to a common generator bus. The overall bus-connected system should be considered when applying generator high-resistance grounding schemes. Calculations are reviewed for sizing generator neutral-ground resistance and evaluating third harmonic originated in the scheme. The relevant applications of third harmonics in applying 100% stator ground-fault protection schemes are examined. Practical considerations are presented for establishing selectivity of ground-fault protection schemes in the case of a common generator bus.","PeriodicalId":138670,"journal":{"name":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 1995 Industrial and Commercial Power Systems Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICPS.1995.527006","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 14
Abstract
Generator ground-fault protection aspects are analyzed for midsize cogeneration plants. In these plants, the generators may be connected to a common generator bus. The overall bus-connected system should be considered when applying generator high-resistance grounding schemes. Calculations are reviewed for sizing generator neutral-ground resistance and evaluating third harmonic originated in the scheme. The relevant applications of third harmonics in applying 100% stator ground-fault protection schemes are examined. Practical considerations are presented for establishing selectivity of ground-fault protection schemes in the case of a common generator bus.
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