{"title":"触点闭合和断开时熔化的电气特性和接触面积特征","authors":"N. Wakatsuki, Tomohiro Watanabe","doi":"10.1109/HOLM.2015.7355077","DOIUrl":null,"url":null,"abstract":"We studied the contact current after Vc=Um of electric contacts during `initial arc'. Using the transient current switch circuit (diodes, resistor and capacitor parallel to the contacts), the melting phenomena of cross-rod electrodes of 0.5mm in diameter were separately observed from arc discharge. Measurement of electric characteristics and observation of the contact area features by laser microscope were able to confirm the existence of conduction current due to the remaining metal contact. This would means that conductive currents flow just after Vc=Um, arcing currents join them one by one, and only the arcing current flows at the last.","PeriodicalId":448541,"journal":{"name":"2015 IEEE 61st Holm Conference on Electrical Contacts (Holm)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electric characteristics and contact area features of melting when making and breaking contacts\",\"authors\":\"N. Wakatsuki, Tomohiro Watanabe\",\"doi\":\"10.1109/HOLM.2015.7355077\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We studied the contact current after Vc=Um of electric contacts during `initial arc'. Using the transient current switch circuit (diodes, resistor and capacitor parallel to the contacts), the melting phenomena of cross-rod electrodes of 0.5mm in diameter were separately observed from arc discharge. Measurement of electric characteristics and observation of the contact area features by laser microscope were able to confirm the existence of conduction current due to the remaining metal contact. This would means that conductive currents flow just after Vc=Um, arcing currents join them one by one, and only the arcing current flows at the last.\",\"PeriodicalId\":448541,\"journal\":{\"name\":\"2015 IEEE 61st Holm Conference on Electrical Contacts (Holm)\",\"volume\":\"2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE 61st Holm Conference on Electrical Contacts (Holm)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/HOLM.2015.7355077\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE 61st Holm Conference on Electrical Contacts (Holm)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HOLM.2015.7355077","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Electric characteristics and contact area features of melting when making and breaking contacts
We studied the contact current after Vc=Um of electric contacts during `initial arc'. Using the transient current switch circuit (diodes, resistor and capacitor parallel to the contacts), the melting phenomena of cross-rod electrodes of 0.5mm in diameter were separately observed from arc discharge. Measurement of electric characteristics and observation of the contact area features by laser microscope were able to confirm the existence of conduction current due to the remaining metal contact. This would means that conductive currents flow just after Vc=Um, arcing currents join them one by one, and only the arcing current flows at the last.
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