考虑基本阳极蒸发的外磁场大电流真空电弧的数值模拟

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. Pub Date : 1900-01-01 DOI:10.1109/DEIV.2004.1422634

E. Schade, D. Shmelev

{"title":"考虑基本阳极蒸发的外磁场大电流真空电弧的数值模拟","authors":"E. Schade, D. Shmelev","doi":"10.1109/DEIV.2004.1422634","DOIUrl":null,"url":null,"abstract":"High-current arcs as found in AMF vacuum interrupters have been numerically simulated taking into account the effect of evaporation of metal vapor from the anode surface. The Magneto-Hydro-Dynamic approach is applied. The physical behavior has been studied and the heat flux to the anode determined. Rise of surface temperature and rate of evaporation has been analyzed for arcing with one half wave of 50Hz-AC-current between Cu contacts. The transition from diffuse to diffuse columnar seems to occur when evaporation rate of metal vapor from the contact surfaces exceeds the emission of plasma produced by the cathode spots.","PeriodicalId":137370,"journal":{"name":"XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"36","resultStr":"{\"title\":\"Numerical simulation of high-current vacuum arcs in external magnetic fields taking into account essential anode evaporation\",\"authors\":\"E. Schade, D. Shmelev\",\"doi\":\"10.1109/DEIV.2004.1422634\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"High-current arcs as found in AMF vacuum interrupters have been numerically simulated taking into account the effect of evaporation of metal vapor from the anode surface. The Magneto-Hydro-Dynamic approach is applied. The physical behavior has been studied and the heat flux to the anode determined. Rise of surface temperature and rate of evaporation has been analyzed for arcing with one half wave of 50Hz-AC-current between Cu contacts. The transition from diffuse to diffuse columnar seems to occur when evaporation rate of metal vapor from the contact surfaces exceeds the emission of plasma produced by the cathode spots.\",\"PeriodicalId\":137370,\"journal\":{\"name\":\"XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"36\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/DEIV.2004.1422634\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/DEIV.2004.1422634","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 36

摘要

考虑阳极表面金属蒸气蒸发的影响，对AMF真空灭弧中的大电流电弧进行了数值模拟。采用磁流体动力学方法。研究了其物理行为，测定了阳极的热流密度。分析了铜触点间半波50hz交流电弧的表面温度上升和蒸发速率。当接触表面的金属蒸气的蒸发速率超过阴极点产生的等离子体发射时，似乎发生了从漫射到漫射柱状的转变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Numerical simulation of high-current vacuum arcs in external magnetic fields taking into account essential anode evaporation

High-current arcs as found in AMF vacuum interrupters have been numerically simulated taking into account the effect of evaporation of metal vapor from the anode surface. The Magneto-Hydro-Dynamic approach is applied. The physical behavior has been studied and the heat flux to the anode determined. Rise of surface temperature and rate of evaporation has been analyzed for arcing with one half wave of 50Hz-AC-current between Cu contacts. The transition from diffuse to diffuse columnar seems to occur when evaporation rate of metal vapor from the contact surfaces exceeds the emission of plasma produced by the cathode spots.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV.

CiteScore

0.40

自引率

0.00%

发文量