Three Gorges - Guangdong HVDC Transmission

Country's largest HVDC power link to connect central and southern China.

ABB has supplied two converter stations for the 3,000 MW high-voltage direct current (HVDC) power link to transmit electricity from the Three Gorges hydropower plant in central China to the Guangdong province. The order is valued at US$ 360 million and was awarded by the state-owned China Power Grid Development Co. The 940-kilometer power went into commercial operation in 2004. One HVDC converter station is located at Jingzhou near the Three Gorges power plant, and the other in Huizhou near Guangzhou.

Jingzhou areal overview

Valve hall with six double valves for 1,500 MW.

Main data
Commissioning year:	2004
Power rating:	3 000 MW
No. of poles:	2
AC voltage:	500 kV (both ends)
DC voltage:	±500 kV
Length of overhead DC line:	940 km
Main reason for choosing HVDC:	Long distance, network stability, low losses, environmental concerns