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Proceedings of 2009 International Workshop on Information Security and Application (IWISA 2009)

Qingdao, China, November 21-22, 2009

Editors: Feng Gao and Xijun Zhu

AP Catalog Number: AP-PROC-CS-09CN004

ISBN: 978-952-5726-06-0

Page(s): 157-159

Research on Real-time Measurement of Key Parameters of Stray Current in DC Traction System

Guoxin Li, Dongliang Zhang, Chonglin Wang, and Wei Deng

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In this paper, the measurement of track resistance and track-to-earth resistance in DC traction system was discussed, First-order differential equations is presented to solve the problem. The measurement only needs track-to-earth voltages and track currents at 2 different points in tunnel, no needs to detect the train location. The use of communication ensures the simultaneity. Test data upload to the computer, and the real-time measurement of track resistance and track-to-earth resistance was performed on the regular run, which provides the reliable evidence to evaluate the stray current.

Index Terms

DC traction; stray current; track-to-earth resistance; track resistance; real-time measurement

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