HVDC Three Gorges – Changzhou

30°47′6″N 111°31′48″E / 30.78500°N 111.53000°E / 30.78500; 111.53000
31°30′37″N 118°21′11″E / 31.51028°N 118.35306°E / 31.51028; 118.35306
31°30′02″N 118°22′11″E / 31.50056°N 118.36972°E / 31.50056; 118.36972
31°36′42″N 119°59′27″E / 31.61167°N 119.99083°E / 31.61167; 119.99083General directionnorth–southFromThree GorgesToChangzhouOwnership informationOwnerChina Power Grid Development Co.Construction informationManufacturer of substationsABBCommissioned2004Technical informationType of currentHVDCTotal length940 km (580 mi)Power rating3,000 MWAC voltage500 kVDC voltage±500 kVNo. of poles2

The HVDC Three Gorges – Changzhou is an 940-kilometre (580 mi) long bipolar HVDC transmission line in China for the transmission of electric power from the Three Gorges power plant to the area of Changzhou.

The transmission line went into service in 2004. It runs from the static inverter station, Longquan, 31 miles (50 km) away from the Three Gorges power plant to the static inverter plant, Zhengping, near Changzhou. The HVDC Three Gorges-Changzhou is a bipolar 500 kV powerline with a maximum transmission power rating of 3,000 megawatts.

A part of the line is the Yangtze River Crossing Wuhu over Yangtze River using 229-metre (751 ft) tall pylons.

The electrode at Chujiahu is also used by HVDC Hubei - Shanghai for grounding.

Sites

Site	Coordinates
Longquan Static Inverter Plant	30°47′6″N 111°31′48″E / 30.78500°N 111.53000°E / 30.78500; 111.53000 (Three Gorges-Changzhou Transmission - Longquan Static Inverter Plant)
Chujiahu Electrode	30°36′26″N 111°54′51″E / 30.60722°N 111.91417°E / 30.60722; 111.91417 (Chujiahu Electrode)
Yangtze Powerline Crossing, Tower North	31°30′37″N 118°21′11″E / 31.51028°N 118.35306°E / 31.51028; 118.35306 (Yangtze Powerline Crossing, Tower North)
Yangtze Powerline Crossing, Tower South	31°30′02″N 118°22′11″E / 31.50056°N 118.36972°E / 31.50056; 118.36972 (Yangtze Powerline Crossing, Tower South)
Zhengping Electrode	31°36′12″N 119°45′59″E / 31.60333°N 119.76639°E / 31.60333; 119.76639 (Zhengping Electrode)
Zhengping Static Inverter Plant	31°36′42″N 119°59′27″E / 31.61167°N 119.99083°E / 31.61167; 119.99083 (Three Gorges-Changzhou Transmission - Zhengping Static Inverter Plant)