A fundamental experiment on operating characteristics of Ag, Pd and Cu contacts in inert atmosphere

Proceedings of the Forth-Seventh IEEE Holm Conference on Electrical Contacts (IEEE Cat. No.01CH37192) Pub Date : 2001-09-10 DOI:10.1109/HOLM.2001.953196

J. Makimoto, K. Sawa, M. Hasegawa

{"title":"A fundamental experiment on operating characteristics of Ag, Pd and Cu contacts in inert atmosphere","authors":"J. Makimoto, K. Sawa, M. Hasegawa","doi":"10.1109/HOLM.2001.953196","DOIUrl":null,"url":null,"abstract":"The purpose of this work is to research the effects of the surrounding atmosphere of contacts on arc discharge and contact reliability in various aspects, and in future, to construct a systematic physical theory for various phenomena in gases, especially in inert gases. By filling the contact part with inert gas, prevention of increase in contact resistance is expected. This paper examines the operational performances of three typical contact materials, Ag, Pd and Cu, in a DC inductive (20 mH) load circuit with load current up to 3.0 A in air and in nitrogen gas. As a result, it is shown that in nitrogen atmosphere, contact resistance is lower and more stable and material wear and transfer is smaller than in air. Thus nitrogen gas has the effect of delaying and restraining deterioration of contact reliability. These consequences are considered to come from the difference of morphology and products on the contact surface, and moreover, the difference of arc duration and arc discharge phase.","PeriodicalId":136044,"journal":{"name":"Proceedings of the Forth-Seventh IEEE Holm Conference on Electrical Contacts (IEEE Cat. No.01CH37192)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Forth-Seventh IEEE Holm Conference on Electrical Contacts (IEEE Cat. No.01CH37192)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HOLM.2001.953196","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

The purpose of this work is to research the effects of the surrounding atmosphere of contacts on arc discharge and contact reliability in various aspects, and in future, to construct a systematic physical theory for various phenomena in gases, especially in inert gases. By filling the contact part with inert gas, prevention of increase in contact resistance is expected. This paper examines the operational performances of three typical contact materials, Ag, Pd and Cu, in a DC inductive (20 mH) load circuit with load current up to 3.0 A in air and in nitrogen gas. As a result, it is shown that in nitrogen atmosphere, contact resistance is lower and more stable and material wear and transfer is smaller than in air. Thus nitrogen gas has the effect of delaying and restraining deterioration of contact reliability. These consequences are considered to come from the difference of morphology and products on the contact surface, and moreover, the difference of arc duration and arc discharge phase.

查看原文本刊更多论文

惰性气氛中银、钯、铜触点工作特性的基本实验

本工作的目的是从各个方面研究触点周围气氛对电弧放电和触点可靠性的影响，并在未来为气体特别是惰性气体中的各种现象构建系统的物理理论。通过用惰性气体填充接触部分，可以防止接触电阻的增加。本文研究了负载电流为3.0 a的直流电感负载电路中Ag、Pd和Cu三种典型触点材料在空气和氮气中的工作性能。结果表明，在氮气气氛中，接触电阻更低，更稳定，材料磨损和转移比在空气中小。因此，氮气具有延缓和抑制接触可靠性恶化的作用。这些影响主要来自于接触表面形貌和产物的不同，以及电弧持续时间和电弧放电相位的不同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Proceedings of the Forth-Seventh IEEE Holm Conference on Electrical Contacts (IEEE Cat. No.01CH37192)

自引率

0.00%

发文量