The EMU will serve as master model vehicle on Beijing-Shenyang rapid passenger railway line with a maximum running speed of 270km/h,which makes it the fastest EMU in China at present for commercial operation."China Star"is composed of 2 power cars,and 9 trailer cars which include 2 first-class sitting cars,6 second-class sitting cars and 1 bar car.The EMU uses advanced AC-DC-AC electric traction, with 2 power cars pulling at the front and pushing at the back.The car unit is developed with extensively use of national and international advanced technology, which makes its whole technological performance reach the advanced level of the similar products at home and abroad.

The whole design adops high, module design. The equipment laying-out adopts the popular mode of the AC motor car in the world, that is dia-corridor, aslant aslant symmery laying-out and box-like driver desk.

The electric drive system adopts the GTO water cooling converter of national, 1225kW strong power asynchronous traction motor, it is featured with large continuous power range, with shaft power, super cohesion, high efficiency and power factor etc.

The control system adopts scattered micro-computer network control system, and it improves the running reliability of the whole motor units with redundancy design-the mainframe hot and redundancy input and output.

Adopting wide car-body drum shape, the whole thin shell structure with super light weight, the first double streamline head in China for reducing pressure.

Adopting independent ventilation on interlayer of the car roof, the traction motor is ventilation independently cooling, the main converter water cooling and main transformer oil cooling, and it adopts combined aluminum board cooler.

The structure and laying-out of box-like driver desk and cab is according to some principles of UIC617-6 the driver cabs of motor car laying-out regulation and is coincidence with human engineering control.

The bogie adopts small wheel, six-link bar secondly grade elastic drive, post positioned push-pull traction rod and chevron drive gear etc., and the traction motor adopts half suspended structure.

Traction characteristics curve Braking characteristics curve