An Experimental Equation of V-I Characteristics of Breaking Arc for Ag, Au, Cu and Ni Electrical Contacts(<Special Issue>Recent Development of Electro-Mechanical Devices (IS-EMD 2002))
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概要
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An experimental equation of V-I characteristics of breaking arc was investigated in the air at atmospheric pressure. Material of the contact pair is Ag, Au, Cu and Ni. Supply voltage is set to 42, 48 and 54V. The electrical resistance of experimental circuit is 5Ω. The time evolutions of arc voltage, arc current and gap length were measured, simultaneously. V-I characteristics were obtained from those measured values. The dependence of the arc voltage on the gap length was represented by an approximate formula as a straight line in order to obtain the experimental equation. And the dependence of the strength of electric field of arc column on the supply voltage was approximated to a straight line. Using these approximate formulae, the experimental equation of the dependence of the arc voltage on the arc current was obtained with the gap length as a parameter. It was shown that the experimental equation agreed with experimental data in the experimental conditions for each contact material.
- 社団法人電子情報通信学会の論文
- 2003-06-01
著者
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Kubono Takayoshi
Faculty Of Engineering Shizuoka Univ.
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Kubono Takayoshi
Faculty Of Engineering Shizuoka University
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Sekikawa Junya
Faculty Of Engineering Shizuoka University
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Sekikawa Junya
Faculty Of Engineering And Design Kyoto Institute Of Technology
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