This document discusses Vacon supplying a drive solution for a new rail production line in Baotou, Inner Mongolia, China. The line produces quenched steel rails for high-speed trains capable of speeds over 300 km/h. Vacon provided over 16 MW of VACON NX common DC bus drive units to control various machines on the line like conveyors and rollers. The precise and reliable control of the drives helps ensure the high quality of the rails for high-speed trains. The project was the first collaboration between Vacon, the system integrator TRIED, and steel manufacturer Baogang and laid the groundwork for future cooperation.

1. www.vacon.com1
STRONG STEEL RAILS FOR HIGH-SPEED TRAINS
Photo courtesy of STX EuropePHOTOS BY BCS AND VACON
STRONG STEEL RAILS FOR
HIGH-SPEED TRAINS
CLIENT NAME: TRIED, Baogang (end client)
SEGMENT: Metals
PRODUCTS USED: VACON®
NXP common DC bus
LOCATION: Baotou, Inner Mongolia
PHOTOS BY ISTOCKPHOTO.COM/ CHINAFACE/WINHORSE

2. www.vacon.com2
STRONG STEEL RAILS FOR HIGH-SPEED TRAINS
KEY FACTS:
• TRIED (Tianjin Design & Research Institute of Electric Drive)
is a major player in the Chinese automation engineering and
metal industry.
• TRIED is a system integrator partner of Vacon China.
• Baogang is one of the major steel manufacturers, with
products including long rails for high-speed railways in China.
• Quenched rails are an ideal choice for high-speed and heavy-
duty rail transportation, as their service life is two to three
times longer than that of ordinary rails made of hot rolled
steel.

3. www.vacon.com3
STRONG STEEL RAILS FOR HIGH-SPEED TRAINS
CHALLENGE:
• When trains travel at speeds of up to 300 km/h, the quality of
the rails is of vital importance.
• Baogang is enhancing its competitiveness with a new
finishing line and quenching line to produce rails with a
maximum length of 100 meters and improved resistance to
fatigue and wear.
• The new line has been designed to have an annual output of
400 000 tons.
• Baogang has very high requirements regarding control and
reliability.

4. www.vacon.com4
STRONG STEEL RAILS FOR HIGH-SPEED TRAINS
SOLUTION:
• In close cooperation with system integrator partner TRIED,
Vacon China Drives was able to supply a complete system
drive solution.
• Vacon’s scope of supply included VACON®
NXP common DC
bus units: 173 inverter units and 9 active front end units (AFE)
with a total power exceeding 16 MW.
• Thanks to the extensive power range of 0.55 kW to 2.2 MW,
the VACON NX common DC bus products can fully meet the
requirements of the wide variety of applications at the plant:
roller and chain conveyors, traveling bogies, straightening
rolls, pinch rolls and loading/unloading trolleys.

5. www.vacon.com5
STRONG STEEL RAILS FOR HIGH-SPEED TRAINS
SOLUTION:
• The VACON NXP common DC bus modules are compact and
easy to integrate: significantly reduce the space needed
for the enclosures and the time for installation.
• All modules are seamlessly connected to the plant automation
system via Profibus-DP: the status can be monitored and
controlled at any operating point.
• Precise speed and torque control has been achieved with the
use of closed loop vector control. Full torque control is
possible at any speed including zero speed.
• The enclosures were engineered and manufactured at Vacon’s
factory in Suzhou, China, resulting in a short lead time.

6. www.vacon.com6
STRONG STEEL RAILS FOR HIGH-SPEED TRAINS
TESTIMONIAL:
This was the first joint project for the partners in the Chinese
metal industry, and it laid a solid foundation for expanding
cooperation in the future.
Mr Dai Ke, Senior Engineer, TRIED
Mr Aisin Giorro Hanjie, Senior Engineer, TRIED
Mr Liu Jie, Senior Engineer, Rail Factory of Baogang Group
FOR FULL STORY:
http://bit.ly/1FLKwlk