Recently, the reporter learned from China Zhuzhou Automotive, the company developed a new type of high-power converter technology train power supply system, Shenyang Railway Bureau has been formally operated AC 380V passenger locomotive, which is China's first time in the locomotive on the use of new Train power supply system. The application of this technology can change the traditional diesel car power supply mode of most passenger trains in our country and increase the capacity of the car. Each year, the revenue of each passenger car can exceed 4 million yuan. According to reports, this new power supply system uses high-power converter technology to directly convert high-voltage and high-current transmitted from the power grid into alternating voltage of voltage levels required by each car through the locomotive itself without additional dedicated power supply cabins and Procurement and maintenance of large-scale power generation and transmission equipment such as diesel engines, inverters, control cabinets, mailboxes and cables have greatly enhanced the efficiency, environmental friendliness and economic performance of passenger trains. Experts predict that if this technology is applied and popularized on all tens of thousands of railway passenger cars that are operated online in China, not only the oil consumption can be greatly reduced, but also the environmental protection and efficiency of energy sources will be greatly improved. At the same time, it will also increase the carrying capacity and economy of the existing trains in our country Sex, can create billions of dollars in economic benefits. The relevant person in charge of Zhuzhou said that the promotion of the new AC380V train power supply system will not only effectively reduce the operating cost of passenger vehicles and substantially increase passenger revenue, but also enhance the technical level of domestic locomotive electrical systems and vehicle equipment. Passenger service system reform to provide technical support.