{"title":"An Experimental Study of Arc Duration and Transition from Metallic to Gaseous Phase in Ag Alloy Break Arc","authors":"K. Yoshida, S. Tanimoto","doi":"10.1109/HOLM.2007.4318206","DOIUrl":null,"url":null,"abstract":"We have studied maintaining mechanism of the contacts arc discharge. In our experiment, the arc duration ta, metallic phase arc duration tm, and transition ratio from metallic to gaseous phase arc G were experimentally studied in Ag, AgCu and AgSnO2 breaking contacts. Experiments were carried out under the variation of source voltage E (12, 24, 36, 48 V), closed contact current Io (0.4 - 6 A). As a result, the gaseous phase transition was not occurred in E=24 V or less. In addition, gaseous phase transition boundary closed contact current (at which G=50 %) of AgSnO2 was smaller than that of Ag and AgCu contacts. It was clarified that the Io which ta and tm increases rapidly is corresponding to the transition boundary from metallic to gaseous phase arc.","PeriodicalId":11624,"journal":{"name":"Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2007-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HOLM.2007.4318206","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
We have studied maintaining mechanism of the contacts arc discharge. In our experiment, the arc duration ta, metallic phase arc duration tm, and transition ratio from metallic to gaseous phase arc G were experimentally studied in Ag, AgCu and AgSnO2 breaking contacts. Experiments were carried out under the variation of source voltage E (12, 24, 36, 48 V), closed contact current Io (0.4 - 6 A). As a result, the gaseous phase transition was not occurred in E=24 V or less. In addition, gaseous phase transition boundary closed contact current (at which G=50 %) of AgSnO2 was smaller than that of Ag and AgCu contacts. It was clarified that the Io which ta and tm increases rapidly is corresponding to the transition boundary from metallic to gaseous phase arc.
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