CR450动车组样车跑出453公里时速

Core Viewpoint - The CR450 train set has achieved a maximum speed of 450 km/h during testing, demonstrating significant advancements in efficiency and design compared to its predecessor, the CR400 [1] Group 1: Performance Metrics - The CR450 train set reached a relative meeting speed of 896 km/h during trials [1] - It accelerates from a standstill to 350 km/h in just 4 minutes and 40 seconds, which is 100 seconds faster than the CR400 train set [1] - The overall resistance of the CR450 train set has been reduced by 22% compared to the CR400 [1] Group 2: Technical Enhancements - The CR450 utilizes a permanent magnet traction system that improves efficiency by 4% over the CR400 [1] - The train's height has been reduced by 200 mm, and the front end has been extended to 15 meters, optimizing the connection at the ends [1] - The bogie area has been fully covered, resulting in fewer exposed wheels [1] Group 3: Future Testing and Implementation - The CR450 train set is currently undergoing operational assessment on the Shanghai-Chongqing-Chengdu high-speed railway, with a requirement to run 600,000 km to evaluate stability and reliability [1] - Comprehensive testing closer to actual operational conditions is planned for next year on the Chengdu-Chongqing line [1]