Experimental Study on Arcing Effects to Contact Materials in 270V dc

Authors

  • Q. C. Zhu State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong Univ.of Science and Technology, 430074, Wuhan
  • Z. B. Li State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong Univ.of Science and Technology, 430074, Wuhan
  • J. Wei State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong Univ.of Science and Technology, 430074, Wuhan
  • Z. X. Liu State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong Univ.of Science and Technology, 430074, Wuhan
  • J. Huang State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong Univ.of Science and Technology, 430074, Wuhan
  • D. D. Zhang State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong Univ.of Science and Technology, 430074, Wuhan
  • M. Hasegawa Chitose Institute of Science and Technology, 066-8655, Chitose, Hokkaido

DOI:

https://doi.org/10.14311/ppt.2017.1.61

Keywords:

contact materials, DC voltage, arcing duration, welding, erosion, relay

Abstract

As supply DC voltage levels in automobiles, aviation and aerospace are becoming higher, high voltage and large capacity compact DC electromagnetic relays or contactors are becoming more important. In this paper, experiments were conducted at DC 270V/100 A in air and nitrogen, respectively, with CuCr40, CuCr45, CuCr50, CuW60, CuW70 and CuW90 as contact materials. Welding resistance (corresponding to electrical contact life), contact erosion and breaking arc durations were measured, and the obtained results were discussed.

References

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Published

2017-10-15

Issue

Vol. 4 No. 1 (2017)

Section

Articles

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