Abstract
In order to provide guidance for the protection and mitigation of stray current at the metro depot, the distribution of stray current of the metro depot is studied in this paper. A simulation model including the metro depot and line is established on CDEGS. The distribution of rail potential, ground potential, current of the single conductor device, and stray current are analyzed under different conditions that the trains operate in metro depot and on mainlines. Simulation results show that the stray current could penetrate to the metro depot and then back to the mainline through the single conductor device when the trains operate on the mainlines. The distribution characteristic of the stray current provides a foundation of new guidance for stray current mitigation in the metro depot.
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