Bridge on the Xingyi Ring Expressway. The construction of the bridge's upper structure achieved a phased victory, laying a solid foundation for achieving the goal of connectivity by the end of 2020.
The high-performance and high-power frequency converter provided by V&T has stable performance and outstanding performance, playing an important role in the smooth completion of the main cable traction of the bridge.
On March 16th, with the precise positioning of the last cable strand, it marked the successful completion of the main cable traction work for the Fenglin Special The first large-span steel-concrete composite beam suspension bridge in mountainous areas of China, Fenglin Extra Large Bridge, has a height difference of 364.2 meters from the bridge deck to the valley bottom, equivalent to about 120 floors. The lifting of prefabricated crossbeams weighing 1470 tons for the 4th main tower has set a world record for prefabricated lifting of concrete components for mountain canyon bridges!
The construction of the main cable is a key and difficult process in the construction of Fenglin Extra Large Bridge, and it is the main force system of the suspension bridge. The main cable is divided into two sections, left and right, with a length of approximately 971 meters and a total weight of 4131 tons. A single main cable consists of 131 cables (including 4 back cables), each consisting of 91 zinc aluminum magnesium coated steel wires with a diameter of 5.45 millimeters. The maximum weight of a single cable strand is about 16.4 tons.
The winch system installed on both sides of the bridge requires very high performance, stability, and reliability of the frequency converter. The outstanding performance of the V&T V6-H torque vector inverter plays an important role in the traction of the main cable of the Fenglin Bridge. Both the progressiveness of technology and the stability of products have been highly recognized and praised by users.
V&T 315kW frequency converter and winch
During equipment debugging, V&T is technical engineer, Mr. Ma, needs to walk back and forth on the catwalk of the bridge. He introduced, "The bridge deck is over 360 meters away from the bottom of the valley, and just thinking about it makes my legs weak. This time, I have broken my fear of heights to the limit.". Walking on the catwalk, there is a feeling of driving through clouds and mist, a bit nervous but very shocking. I greatly admire the "Iron Army" spirit of the bridge builders who have endured hardships, selflessly contributed, and persevered.
Since the commencement of the construction of the bridge, CCTV CCTV News, Morning News, Big Country Traffic, Xinhua News Agency, People's Daily Online and local media have reported on the construction of Jiaofeng Forest Bridge.
For many years, the high-performance and high-quality frequency converters and other products developed and produced by V&T have been contributing to domestic infrastructure projects and contributing to the construction of transportation as a major country!
V&T was established in 2006 (stock code: 300484). It is a national high-tech enterprise with completely independent intellectual property rights, specializing in the research and development, manufacturing, sales, and service of power electronic products such as medium and low voltage frequency converters, servo drives, electric vehicle motor controllers, and inverters.