NR to Safeguard Changji-Guquan ±1100 kV UHVDC Transmission Project

On September 26, 2019, the Changji-Guquan ±1100kV UHVDC transmission project of the State Grid Corporation of China was officially put into operation.

Changji-Guquan UHVDC transmission project is a milestone in the development of UHVDC transmission history in China. The purpose of this huge project is to boost West-to-East power delivery with enhanced anti-pollution strategy of China. This is the world’s longest, highest and largest UHVDC transmission project, starting from Changji in Xinjiang Province to Xuancheng in Anhui Province, covering 6 provinces with a total distance of 3400km. The installation capacity of Changji-Guquan UHVDC project is 12000MW. As an important corridor for power delivery from Xinjiang, its establishment will bring economical profits for Xinjiang and solve the power imbalance between Xinjiang and Southeast of China.

In response to the vital problems brought about by the high voltage, long distance, and large capacity of the Changji-Guquan transmission project, NR provided the core complete sets of equipment such as converter valves, DC control protection systems, measuring devices, and safety and stability control systems.

NR Electric, as a power stability expert, is a leading protection & control solution provider across the world. With the winning of this contract for UHVDC core equipment and protection system, NR achieved another mile-stone towards the betterment of high power transmission and better power stability solution.

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