Experimental study on arc motion and voltage fluctuation at slowly separating contact with external DC magnetic field

Yoshiki Kayano, Kazuaki Miyanaga, Hiroshi Inoue

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Since electromagnetic (EM) noise resulting from an arc discharge disturbs other electric devices, parameters on electromagnetic compatibility, as well as lifetime and reliability, are important properties for electrical contacts. To clarify the characteristics and the mechanism of the generation of the EM noise, the arc column and voltage fluctuations generated by slowly breaking contacts with external direct current (DC) magnetic field, up to 20mT, was investigated experimentally using Ag90:7wt%SnO2 9:3wt% material. Firstly the motion of the arc column is measured by high-speed camera. Secondary, the distribution of the motion of the arc and contact voltage are discussed. It was revealed that the contact voltage fluctuation in the arc duration is related to the arc column motion. Copyright

Original languageEnglish
Pages (from-to)858-862
Number of pages5
JournalIEICE Transactions on Electronics
VolumeE97-C
Issue number9
DOIs
Publication statusPublished - 2014 Sep 1

Keywords

  • Arc motion
  • External DC magnetic field
  • Silver-tin dioxide contact
  • Slowly separating
  • Voltage fluctuation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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