China presents new bullet trains that reach 450 km/hour

Dec. 30 () –

China has presented the prototypes of the bullet train CR450with a test speed of up to 450 kilometers per hour and an operational speed of 400 kilometers per hour.

The CR450 is significantly faster than the CR400 Fuxing high-speed trains currently in service, which operate at speeds of 350 kilometers per hour, and become the fastest in the world in their class.

China State Railway Group Co., Ltd. (China Railway) will organize a series of line tests for the prototypes and optimize technical indicators to ensure that the CR450 enters commercial service as soon as possible, Xinhua reports.

Compared to its predecessors, the overall operating endurance of the CR450 will be reduced by 22 percent and Your weight will be reduced by 10 percentaccording to China Railway.

The new prototypes are two CR450 models: the CR450AF and the CR450BF, both with a formation of eight cars, four with engines and four without engines, according to CRRC Corporation Limited (CRRC), China’s main train manufacturer.

High-speed trains are characterized by a Advanced water-cooled permanent magnet drive systemand a reliable and highly stable bogie system, which guarantees excellent performance and safety during all operations.

The trains are equipped with an advanced multi-level emergency braking system and more than 4,000 sensors for real-time monitoring of key systems, including the bodywork, high-voltage pantograph, train control and collision detection systems. fires. According to the CRRC, An over-the-horizon system has also been used to improve recognition of emergency situations.

The CR450 features a new bogie cabinet design to minimize air resistance at high speeds, along with a sharp-nosed, low-drag aerodynamic front end, aerodynamic windscreens and lightweight materials.

Integrates advanced noise reduction techniques in different areas and frequencies, reducing interior noise by 2 decibels and increasing passenger service space by 4 percent compared to its predecessors.

Since launching the Beijing-Tianjin intercity railway in 2008 with designed speeds of 350 kilometers per hour, China has built the most extensive and advanced high-speed rail network in the world.

To date, the total length of China’s operational high-speed railway tracks has reached about 47,000 kilometers, data from the National Railway Administration shows.