Arc characteristics on dissymmetric contact pair of Ag based materials at slowly breaking

Kazuaki Miyanaga, Yoshiki Kayano, Hiroshi Inoue, Tasuku Takagi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this study, we newly attempt to clarify the material dependencies of arc characteristics at slowly breaking contact changing by the Ag based different material pairs. Firstly, the contact voltage, current waveforms and arc columns are measured. Secondary, the material dependencies of the arc duration, the spread and concentration of the arc column are discussed. Finally, the arc voltage fluctuation is discussed. Experimental results show that in the cases of the (+)Ag-Ag(-) and (+)AgSnO2- (-)Ag, arc durations can be shorter. The arc duration influenced by the cathode electrode material. The voltage fluctuation larger than the supply voltage is observed in the (+)Ag-(-)Ag case. The (+)AgSnO2-(-)Ag contact pair has relatively small voltage fluctuation. The condition of dissymmetric contact pair in the case of the (+)AgSnO2-(-)Ag is one of the solution to make shorter duration and smaller voltage fluctuation of arc discharge. This study provides the basic considerations on the short arc extinction for DC switching.

Original languageEnglish
Title of host publication26th International Conference on Electrical Contacts, ICEC 2012
Pages250-254
Number of pages5
Edition605 CP
DOIs
Publication statusPublished - 2012
Event26th International Conference on Electrical Contacts, ICEC 2012 - Beijing, China
Duration: 2012 May 142012 May 17

Publication series

NameIET Conference Publications
Number605 CP
Volume2012

Other

Other26th International Conference on Electrical Contacts, ICEC 2012
Country/TerritoryChina
CityBeijing
Period12/5/1412/5/17

Keywords

  • Dissymmetric pair
  • Electrical contact
  • Extinction of arc discharge
  • Silver based material
  • Slowly breaking

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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