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Energies 2018, 11(1), 17; doi:10.3390/en11010017

Characteristics of the Sliding Electric Contact of Pantograph/Contact Wire Systems in Electric Railways

School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
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Received: 6 November 2017 / Revised: 9 December 2017 / Accepted: 18 December 2017 / Published: 22 December 2017
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

The sliding electric contact of pantograph/contact wire systems plays a significant part in the current collection stability and operation life of pantograph/contact wire systems. This paper addresses the evolutionary process of sliding electric contact of pantograph/contact wire systems by analyzing three key characteristics including contact resistance, temperature distribution and microstructure. The influence of electric current on contact resistance was interpreted. Furthermore, the evolution of the spatial temperature distribution of the carbon strip was obtained in the zigzag movement, while the dominant role of electric effect in temperature rise was demonstrated. In the end, the wear morphology differences under pure friction and current-carrying conditions were analyzed. The formation of radial cracks was illustrated and its influenced on the wear process was discussed. View Full-Text
Keywords: sliding electric contact; contact resistance; temperature distribution; microstructure sliding electric contact; contact resistance; temperature distribution; microstructure
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Wu, G.; Wu, J.; Wei, W.; Zhou, Y.; Yang, Z.; Gao, G. Characteristics of the Sliding Electric Contact of Pantograph/Contact Wire Systems in Electric Railways. Energies 2018, 11, 17.

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