The Study on the Influence of the Earth Current of DC Project on the Surrounding Electrified Railway

摘要

The earth current caused by DC project's mono-pole ground return operation mode will have an impact on the surrounding electrified railway. Firstly, the impact assessment index of the earth current of DC project on the electrified railway is analyzed. Secondly, the model about the influence of the earth current of Yong-Fu DC project on the surrounding Yun-Gui electrified railway is built by CDEGS software, and the core skin potential difference and transfer potential of the Yun-Gui railway communication cable and the step voltage and corrosion situation around the railway rail are calculated. The result shows that the earth current of Yong-Fu DC project has a little influence on the surrounding Yun-Gui electrified railway.