On December 8 of 2025, the National Railway Administration officially released the list of projects selected for inclusion in the 2025 Major Railway Science and Technology Innovation Repository. Two technological achievements developed by CRRC Zhuzhou Electric Motor Co., Ltd., “Development of Traction Motors for Plateau Dual-Power Centralized EMUs” and “A Cooling System for Traction Transformers Used in Rail Vehicles,” were successfully selected, highlighting the company’s strong independent innovation capabilities in core rail transit equipment.
The annual selection is an authoritative national initiative organized by the National Railway Administration to promote scientific and technological innovation in the railway sector, encourage innovation among railway professionals, and support the high-quality development of railway technologies. Following rigorous expert review, public consultation, and final approval, a total of 50 railway technology projects, 50 railway patents, 13 technical standards, and 4 China Patent Award–winning patents were included in the 2025 repository.
Railway Technology Project
The project “Development of Traction Motors for Plateau Dual-Power Centralized EMUs” was selected under the Railway Technology Project category. The technology is applied to the Fuxing high-altitude dual-power centralized EMU, which pioneers a configuration combining separate diesel and electric power systems with dual-end, dual-control power strategies. This design enables seamless operation across both electrified and non-electrified railway lines, with flexible switching between power modes during service.
The newly developed traction motor is specifically engineered for high-altitude railway environments, demonstrating stable and reliable performance across wide altitude ranges, long operating routes, and complex natural conditions. It effectively addresses power adaptation challenges in plateau railway transport.
Railway Patent
The patent “A Cooling System for Traction Transformers Used in Rail Vehicles” was selected under the Railway Patent category. Featuring an optimized forced oil circulation and air-cooling architecture, the system improves heat transfer efficiency by over 30%, ensuring stable operating temperatures for traction transformers under 350 km/h high-speed operation as well as extreme conditions, including high-temperature and high-humidity environments or low temperatures at high altitudes.
The system integrates both insulation and cooling functions within a fully enclosed design, effectively protecting against dust, vibration, and other harsh operating conditions. This reduces equipment failure rates by 40%, extends transformer service life to over 30 years, and significantly lowers lifecycle operation and maintenance costs. Its modular design also enables flexible adaptation to different rail vehicle models, supporting lightweight and customized development of rail transit equipment.
Looking ahead, CRRC Zhuzhou Electric Motor will continue to focus on the frontiers of railway technology and national strategic priorities, deepen research and development of key core technologies, and accelerate the transformation of high-value, high-reliability innovations into practical applications—contributing further to the development of a transportation powerhouse.
