Effect of Polarity on Erosion of Off-line Arc in Electric Friction Couples

L. M. Song, L. X. Jia, R. H. Zhang

Abstract

Off-line arc in pantograph-catenary system of high-speed train affects contact and current transmission. A series of comparative tests on erosion of off-line arc occurring with break of contact between W probe and copper specimen at different polarities were carried out on a home-made current-carrying arc tester. Experimental results were distinctly different at different polarities. Arc erosion was serious when W probe was anode and copper specimen was cathode. However, arc erosion was alleviated when W probe was cathode and copper specimen was anode. Experimental results are discussed on basis of arc physical essence. Experimental results have related with generation mechanisms of charged particles and arc state and arc force. Proper match between polarity and physical properties of electric friction couples can alleviate erosion. The study provides theory support for proposal of electric arc power collection system.

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Paper Citation


in Harvard Style

Song L., Jia L. and Zhang R. (2018). Effect of Polarity on Erosion of Off-line Arc in Electric Friction Couples.In Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE, ISBN 978-989-758-346-9, pages 357-363. DOI: 10.5220/0007438803570363


in Bibtex Style

@conference{iwmce18,
author={L. M. Song and L. X. Jia and R. H. Zhang},
title={Effect of Polarity on Erosion of Off-line Arc in Electric Friction Couples},
booktitle={Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE,},
year={2018},
pages={357-363},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007438803570363},
isbn={978-989-758-346-9},
}


in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE,
TI - Effect of Polarity on Erosion of Off-line Arc in Electric Friction Couples
SN - 978-989-758-346-9
AU - Song L.
AU - Jia L.
AU - Zhang R.
PY - 2018
SP - 357
EP - 363
DO - 10.5220/0007438803570363