The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains

Jiefu Hou; Song Xiao; Mengqiao Wang; Pupu Li; Guangning Wu; Ye Cao; Guoqiang Gao; Yujun Guo; Xueqin Zhang; Yongdong He

doi:10.1049/hve2.70196

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The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains

更新时间：2026-05-20

- The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains
- The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains
- 高电压（英文） 2026年11卷第2期
- 作者机构：
  
  School of Electrical Engineering, Southwest Jiaotong University,Chengdu,China
- 作者简介：
- 基金信息：
- DOI：10.1049/hve2.70196
  中图分类号：
- 纸质出版：2026
- 稿件说明：
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Jiefu Hou, Song Xiao, Mengqiao Wang, 等. The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains[J]. 高电压（英文）, 2026,11(2).

Jiefu Hou, Song Xiao, Mengqiao Wang, et al. The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains[J]. High Voltage, 2026, 11(2).
Jiefu Hou, Song Xiao, Mengqiao Wang, 等. The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains[J]. 高电压（英文）, 2026,11(2). DOI： 10.1049/hve2.70196.

Jiefu Hou, Song Xiao, Mengqiao Wang, et al. The Generating Mechanism and Suppression Measure of the ‘Wheel-Rail’ Rolling Arc for Electrified Trains[J]. High Voltage, 2026, 11(2). DOI： 10.1049/hve2.70196.

摘要

As the ‘main blood vessel’ of the traction power supply system for high-speed trains

the ‘wheel-rail’ coupling grounding reflux system provides the vital channel to send traction current back to terrestrial substations; meanwhile

the rail track also plays a role in transmitting the train's occupancy signal to the control system. An insulated joint is embedded almost every 1.5–5 km along the rail track to isolate adjacent track sections for realising both transmission of traction current and separation of the track occupancy signal. When a wheel rolls across an insulated joint

the transient variation of the reflux paths with the potential difference between the two adjacent rail ends possibly triggers an arcing phenomenon around the insulated joint

which seriously threatens the operational safety of trains. In order to explore the generating mechanism of the ‘wheel-rail’ rolling arc

a dynamic current-carrying experimental platform is built to observe the evolutionary process of the ‘wheel-rail’ rolling arc

as the main influencing factors of the arc are explored. Considering the arcing criterion

different combinations of grounding resistors have been attempted

as the optimum is ultimately achieved based on the brute force method for suppressing the ‘wheel-rail’ arc effectively.

Abstract