![]() Meanwhile, ABB Power Grids also contributed to the construction of the Kunliulong ☘00 kV DC power project, another transmission line owned by CSG to transfer power from southwest to southeast China. As a key equipment in HVDC projects, GIS will largely improve the safety and reliability of the power network. GIS is a compact metal encapsulated switchgear that uses pressurized insulating gas and enables safe operations in confined spaces while significantly reducing equipment footprint. It is expected to transmit around 6 billion kWh of hydropower every year and reduce coal consumption by 1.8 million tons and carbon dioxide (CO 2) emissions by about 4.8 million tons.Īlthough facing the challenging schedule, ABB Power Grids supplied 500 kV gas-insulated switchgear (GIS) and gas-insulated line (GIL) to the project in 5 months, and overcame the situation of COVID-19, successfully completing the on-site installation and commission.Īs a market and technology leader in GIS technology, ABB Power Grids offers ratings and applications from 72.5 kV to 1,200 kV and has a global installed base of almost 37,000 bays. It added a converter station in Luquan, Yunnan, connected with the established Guizhou-Guangdong DC transmission line and achieved the three-terminal DC transmission link across Yunnan, Guizhou and Guangdong provinces. The Yunnan-Guizhou transmission line is China’s first “three-terminal” DC power project that transformed from a “two-terminal” DC transmission line. As the world’s first ±500 kV three-terminal power project developed by China Southern Power Grid (CSG) in south China, the line will effectively increase the hydropower consumption in Yunnan Province, southwest China and deliver more clean electricity to Guangdong Province in southeast China.ĪBB Power Grids provided leading high-voltage (HV) technologies for the newly constructed Luquan converter station in Yunnan Province to ensure safe and reliable power supply. On June 11, the Yunnan-Guizhou ±500 kilovolt (kV) direct current (DC) transmission line was officially put into operation. ![]()
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January 2023
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