{"title":"Influence of the power factor on the degradation of Ag-W electrical contact circuit-breakers","authors":"H. Furtado, P. Mocarzel, V. Silveira","doi":"10.1109/HOLM.1991.170801","DOIUrl":null,"url":null,"abstract":"Ag-W contacts were evaluated as to their durability by electrical tests, according the IEC 157-1/73, applying different values of power factor. Such contacts were assembled into 30-A single-pole thermomagnetic circuit breakers. The morphology evolution of the arc affected zone was analyzed after 1000, 3000, and 6000 on/off switching cycles with scanning electron microscopy. Based on these results, the contact performances were compared and the influence of the power factor on the degradation of Ag-W contacts of circuit breakers was established.<<ETX>>","PeriodicalId":368900,"journal":{"name":"Electrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE HOLM Conference on Electrical Contacts","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE HOLM Conference on Electrical Contacts","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HOLM.1991.170801","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
Ag-W contacts were evaluated as to their durability by electrical tests, according the IEC 157-1/73, applying different values of power factor. Such contacts were assembled into 30-A single-pole thermomagnetic circuit breakers. The morphology evolution of the arc affected zone was analyzed after 1000, 3000, and 6000 on/off switching cycles with scanning electron microscopy. Based on these results, the contact performances were compared and the influence of the power factor on the degradation of Ag-W contacts of circuit breakers was established.<>
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
