Abstract:Abstract:Research purposes: In recent years,sustainable development began to gain traction, the design of electrical 〖JP2〗energy saving has become a very important issue in the design process of railway industry. Reasonable electrical energy-saving design can greatly reduce energy consumption and save energy, to ensure the sustainable development of energy. From the point of view of electric energy- saving, this paper describes the design of electrical energy- saving in the large railway passenger station, D-train depot(section), EMU overhaul base and high-speed railway training base. It puts forward four main technical measures for the design of electric energy-saving in railway industry, that is energy-saving of power supply and distribution system, energy-saving of lighting system, energy-saving of building automation system and energy-saving of energy management system. Research conclusions: (1) In the design of power supply and distribution system, through reasonable design of power supply and distribution system, the energy-saving of power supply and distribution system is optimized.(2) In the lighting system design, through the use of new energy-saving light sources, LED lighting source is preferentially adopted, and intelligent lighting control system is set up to make the energy-saving of lighting system achieve the optimum.(3) Area of 3 000 square meters above the railway passenger station set BAS, to achieve energy-saving building all kinds of mechanical and electrical equipment control.(4) More than 20 thousand square meters of large railway stations, EMU overhaul base and high-speed rail training base and other places, set up energy management system, so as to achieve the best energy-saving management in buildings.(5) The results of this study can provide a useful reference for the later railway electrical energy saving design.