Characteristics of the Arc on Contact Breaking of Noninductive Circuit in Air

• Sato Mitsunori

  National Research Institute for Metals

• Hijikata Masayuki

  National Research Institute for Metals

• Morimoto Ichiro

  National Research Institute for Metals

抄録

The arc on breaking of silver, tungsten and carbon contacts has been observed by means of an oscilloscope in the range of applied voltages from 20 to 110 volts and of testing currents from 0.3 to 50 amperes at both d.c. and a.c. noninductive circuits. Through the observations, length L, voltage e and current i of the arc are given by the following equations:<BR>(Remark: Graphics omitted.)<BR>where E is the applied voltage, I is the testing current, E_m is the minimum arc voltage, I_m is the minimum arc current, υ is the breaking speed, ω is the angular velocity, φ is the breaking phase angle, T is the arc duration, t is the time and K is a constant; in the case of d.c. circuit, the sin(ωt+φ) is equal to unity. These equations are applicable for the materials of both thermionic emission and field emission (T–F mechanism).

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 15 (2), 91-98, 1974

  社団法人 日本金属学会

キーワード

• General Engineering

詳細情報

• CRID: 1390282680095874048
• NII論文ID: 130003485287
• DOI: 10.2320/matertrans1960.15.91
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/15/2/15_2_91/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
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