January 13, 2026
In the magnificent chapter of China's power development, the 1000kV Jindongnan - Nanyang - Jingmen Ultra-High Voltage (UHV) AC Pilot Demonstration Project undoubtedly stands as a brilliant highlight. This project marks China's first UHV transmission line.Guangdong Xinyuan Hengye Power Transmission Device Co., Ltd.has been deeply involved in it, working alongside numerous constructors to jointly forge this resplendent monument in the power sector.
This project, resembling a majestic "electricity dragon", originates from the Jindongnan (Changzhi) Substation at the foot of the towering Taihang Mountains in Shanxi, passes through the Nanyang Switching Station in the heart of the Central Plains in Henan, and finally terminates at the Jingmen Substation in the land of Jingchu in Hubei.Built as a single-circuit line, it stretches 654 kilometres, crossing the surging Yellow River and the rippling Han River with extraordinary grandeur. Boasting a substation capacity of 6,000 MVA, a system nominal voltage of 1,000 kV, and a maximum operating voltage of 1,100 kV, with a static investment of approximately 5.7 billion yuan, it stands as a project of immense scale that commands attention.
As a pioneering endeavor and model example in the development of China's UHV transmission technology, this project bears significant missions. Through unremitting exploration and practice, China has successfully established a world-class UHV experimental research system and mastered UHV AC transmission engineering technologies with comprehensive independent intellectual property rights.
Moreover, our company has successfully developed a full set of UHV equipment representing world-leading standards, breaking the foreign technological monopoly. What is even more pride-worthy is that China took the lead globally in establishing a UHV AC transmission technical standard system and has been awarded the title of "National Demonstration for Standardization of Major Projects".
Guangdong Xinyuan Hengye Power Transmission Device Co., Ltd. played an indispensable role in the project construction. With exquisite technology and a rigorous attitude, it provided solid material support for the smooth progress of the project, contributing significantly to the development of China's UHV transmission cause. Its achievements will be engraved in the historical scroll of China's power construction.
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source: state-owned small new