{"title":"Multiple re-strikes phenomenon when using vacuum circuit breakers to start refiner motors","authors":"J.P. Eichenberg, H. Hennenfent, L. Liljestrand","doi":"10.1109/PAPCON.1998.685530","DOIUrl":null,"url":null,"abstract":"15 kV class vacuum circuit breakers have become the most popular method of starting large chip refiner synchronous motors. Multiple re-strikes, can occur in vacuum circuit breakers and may cause transient overvoltages at the motor terminals. This condition damages motor stator windings. The paper describes multiple re-strikes in vacuum circuit breakers and how they are measured. It also discusses the experience at Avenor's Canadian pulp and paper mills in Gold River, British Columbia and Thunder Bay, Ontario and at the QUNO mill, Thorold, Ontario, Canada. Included are modifications recommended to protect the refiner motors from further damage.","PeriodicalId":360061,"journal":{"name":"Conference Record of 1998 Annual Pulp and Paper Industry Technical Conference (Cat. No.98CH36219)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"17","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of 1998 Annual Pulp and Paper Industry Technical Conference (Cat. No.98CH36219)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PAPCON.1998.685530","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 17
Abstract
15 kV class vacuum circuit breakers have become the most popular method of starting large chip refiner synchronous motors. Multiple re-strikes, can occur in vacuum circuit breakers and may cause transient overvoltages at the motor terminals. This condition damages motor stator windings. The paper describes multiple re-strikes in vacuum circuit breakers and how they are measured. It also discusses the experience at Avenor's Canadian pulp and paper mills in Gold River, British Columbia and Thunder Bay, Ontario and at the QUNO mill, Thorold, Ontario, Canada. Included are modifications recommended to protect the refiner motors from further damage.
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