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Open Access
Effect of Surrounding Atmospheres on Break Arc Durations of Electrical Contacts in DC Load Conditions

Jiang WEI, Lige ZHANG, Zhenbiao LI, Dandan ZHANG, Xiaoping BAI, Makoto HASEGAWA, Qingcheng ZHU

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Summary :

In order to realize better understanding of influential order sequences of surrounding atmospheres on break arc durations of electrical contacts in DC load conditions, a quantitative mathematical model, which aims to indicate dependences of break arc durations on several gas parameters such as molecular mass, viscosity, specific heat capacity, thermal conductivity, electro-negativity, and ionization potential, was analyzed. Break arc durations of AgCdO contact pairs were measured in several kinds of surrounding atmospheres (N2, Ar, He, air, O2 and CO2) under different DC voltage and current conditions, and data fitting processes were conducted. As a result, a candidate mathematical model was established, which could indicate possible influential order sequences of surrounding atmospheres on break arc durations in the range of the tested conditions.

Publication
IEICE TRANSACTIONS on Electronics Vol.E103-C No.1 pp.16-27
Publication Date
2020/01/01
Publicized
2019/07/17
Online ISSN
1745-1353
DOI
10.1587/transele.2019ECP5001
Type of Manuscript
PAPER
Category
Electromechanical Devices and Components

Authors

Jiang WEI
  Huazhong Univ. of Science and Technology
Lige ZHANG
  Huazhong Univ. of Science and Technology
Zhenbiao LI
  Huazhong Univ. of Science and Technology
Dandan ZHANG
  Huazhong Univ. of Science and Technology
Xiaoping BAI
  Fuda Alloy Materials Co. Ltd
Makoto HASEGAWA
  Chitose Inst. of Science and Technology
Qingcheng ZHU
  Huazhong Univ. of Science and Technology

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