Core Insights - The new Chengkun Line, known as the "Southwest Transportation Artery," has officially deployed the Harmony 2 electric locomotives, enhancing its operational capabilities [1] - The Chengkun Line traverses the complex geological conditions of the Hengduan Mountains, previously deemed a "forbidden zone" for railway construction by foreign experts [1] - CRRC Dalian Electric Traction Company has customized the locomotives with upgraded traction control units and network control systems to meet the stringent performance, efficiency, and reliability requirements [1] Technical Enhancements - The Harmony 2 electric locomotives feature new practical functions such as automatic phase transition, interconnectivity, and automatic coupling, along with enhanced event recording capabilities for smarter and more reliable operations [1] - The system's stability has been improved through optimized adhesion utilization algorithms and redundant switching mechanisms in the main control unit [1] - The locomotives are designed with future upgrades in mind, including reserved capabilities for auxiliary driving and wireless reconnection [1] Support and Maintenance - CRRC Dalian Electric Traction Company has established a "technology + service" support team to ensure the safe and stable operation of the locomotives [2] - The company has pre-stocked core spare parts, conducted zero-kilometer maintenance for new trains, and provided customized training for personnel [2] - 24-hour on-site technical support is available to quickly address and resolve any unexpected issues [2]