Design Innovation of the Traction Power Supply System for Shanghai Pujiang Line

Shanghai rail transit Pujiang Line is the first one in China that realizes four\|track power supply. Through introducing the characteristics and the overall design of the traction power supply system, innovation points of the line in stray current prevention, ground scheme design, section setting of power supply are analyzed in details. It is made clear that the setting up of stray current corrosion protection system, DC frame protection system and station rail potential limitation system is not needed, in order to reduce the line construction cost.