{"title":"Influence of remanent magnetization on the diagnostic of distribution 25MVA transformer by SFRA method","authors":"J. Sedlák, M. Brandt, R. Seewald","doi":"10.1109/ELEKTRO.2012.6225667","DOIUrl":null,"url":null,"abstract":"This paper deals with the influence of core magnetization on its frequency response analysis. Remanent magnetization is a characteristic property of ferromagnetic materials. The core can aquire different value of remanent magnetization in the process of diagnostic measurements. This fact is very important from the point of view of good representation of results from measurements. In the past, there was made a couple of measurements on 3-phase dry transformer (3000VA). In the present the measurements were done on distribution 25MVA transformer in order to confirm an influence of remanent magnetization on SFRA measurements.","PeriodicalId":343071,"journal":{"name":"2012 ELEKTRO","volume":"45 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 ELEKTRO","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ELEKTRO.2012.6225667","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 13
Abstract
This paper deals with the influence of core magnetization on its frequency response analysis. Remanent magnetization is a characteristic property of ferromagnetic materials. The core can aquire different value of remanent magnetization in the process of diagnostic measurements. This fact is very important from the point of view of good representation of results from measurements. In the past, there was made a couple of measurements on 3-phase dry transformer (3000VA). In the present the measurements were done on distribution 25MVA transformer in order to confirm an influence of remanent magnetization on SFRA measurements.
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