A 1,040-kilometer, 3,000-MW transmission line has been completed, linking the 18,200-MW Three Gorges Dam to China’s industrial hub at Shanghai.
Contractor ABB said it delivered the US$900 million high-voltage direct current line (HVDC) in less than 30 months, six months ahead of schedule. ABB said the completion was one month faster than the previous world record, which ABB set in 2004 for a 940-kilometer line connecting Three Gorges to Guangdong. ABB has delivered two other HVDC links for the project.
The new line was inaugurated in ceremonies December 9 at the Huaxin HVDC receiver station on the outskirts of Shanghai, China’s largest city. ABB supplied two HVDC converter stations comprising 28 converter power transformers and six smoothing reactors, switchgear, and advanced control equipment.
Upon initial completion in 2009, Three Gorges will total 18,200 MW from 26 generators. However, it already is being expanded to 22,400 MW. (HNN 6/9/06)
In June 2006, the last cofferdam protecting dam construction work was removed. Additionally, at that time, equipment manufacturer Alstom delivered the first 700-MW turbine runner for the Three Gorges Right Bank powerhouse.