Who can lay cables in such a difficult environment? The answer is: China!

China's Changji-Guquan ±1100 kV UHV DC transmission project (abbreviated as "Jiquan DC") is the world's highest voltage, largest transmission capacity and longest transmission distance UHV DC line. The project connects the energy base in Changji, Xinjiang with the eastern load center. It is 3,293 kilometers long and crosses complex terrains such as deserts, mountains and rivers, making it one of the most challenging and technically difficult power transmission projects in the world.

Jiquan DC - ultra-high technology, ultra-long distance, ultra-large capacity

The Jiquan DC line can transmit 12 million kilowatts of electricity and more than 200 million kWh per day, which is equivalent to lighting 400 million 30-watt light bulbs and meeting the annual electricity needs of 130,000 four-person families. This power "artery" not only provides China with a large amount of energy, but also demonstrates China's outstanding ability to build ultra-high voltage power grids in complex geographical environments.

The "secret weapon" of DC transmission

The voltage of Jiquan DC is as high as ±1100 kV, which greatly improves the transmission efficiency. By increasing the voltage, energy loss in long-distance transmission is reduced. Its core technology, Changji Converter Station, is the "heart" that converts AC power into DC power, providing strong power support. The converter transformer and other high-end equipment work together to make this technology a success.

"Hero Road" across the no-man's land

Jiquan DC crosses extreme terrains such as the Qinling Mountains and the Gobi Desert, and the construction difficulty is unprecedented. To overcome these difficulties, the engineering team adopted an unmanned area command center, and ensured the smooth progress of the project in extreme environments through modern means such as satellite phones and helicopter emergency teams.

China's wisdom and determination

The success of Jiquan DC not only represents China's breakthrough in power transmission technology, but also demonstrates China's engineering construction capabilities in extreme environments. Since the 1980s, UHV transmission technology has become an important part of China's energy strategy. Jiquan DC is the pinnacle of this technology, marking China's major achievements in energy layout optimization and technological innovation.

Conclusion

Jiquan DC is not only a transmission project, it represents China's latest achievements in energy, technology and engineering construction. Through this project, China has efficiently and greenly transmitted clean energy from the west to the east, making an important contribution to power transmission in China and around the world. If you have ever asked, "Who can lay cables in such a difficult environment?" the answer is obvious: China, with its strong technical force, determination and innovation, built this "Sky Road" and let the energy from the west light up the nights of the whole of China.

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