HVDC Three Gorges – Changzhou

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.

HVDC Three Gorges – Changzhou
Location
CountryChina
Coordinates30°47′6″N 111°31′48″E
31°30′37″N 118°21′11″E
31°30′02″N 118°22′11″E
31°36′42″N 119°59′27″E
General directionnorth–south
FromThree Gorges
ToChangzhou
Ownership information
OwnerChina Power Grid Development Co.
Construction information
Manufacturer of substationsABB
Commissioned2004
Technical information
Type of currentHVDC
Total length940 km (580 mi)
Power rating3,000 MW
AC voltage500 kV
DC voltage±500 kV
No. of poles2

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
SiteCoordinates
Longquan Static Inverter Plant30°47′6″N 111°31′48″E
Chujiahu Electrode30°36′26″N 111°54′51″E
Yangtze Powerline Crossing, Tower North31°30′37″N 118°21′11″E
Yangtze Powerline Crossing, Tower South31°30′02″N 118°22′11″E
Zhengping Electrode31°36′12″N 119°45′59″E
Zhengping Static Inverter Plant31°36′42″N 119°59′27″E


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