World's longest UHV power line operational in China
BEIJING, Dec. 12 (Xinhua) - peopledaily.com
The State Grid Corp. of China (SGCC), the country's biggest power supplier, saidChina is setting records by putting an ultra-high voltage (UHV) power transmission line into commercialoperation on Wednesday.
The UHV line, linking Jinping in southwest China's Sichuan province with Sunan in east China's Jiangsuprovince, is a direct current (DC) transmission project that has the world's largest power transmissioncapacity, longest transmission distance and highest transmission voltage, the SGCC announced.
The line, with a total length of 2,059 km, can deliver 7.2 million kilowatts (kwh) of electric power, up from thepresent record of 6.4 million kwh, by means of DC power transmission technology, the SGCC said.
China invested a total of 22 billion yuan (3.5 billion U.S. dollars) to build the line, which is also the third UHVpower line put into operation by the SGCC.
China approved the project in November 2008.
UHV power lines are designed to deliver large quantities of power over long distances with less power lossthan traditional lines.
Similar power lines were previously developed only in Russia and Japan, but the technology was not widelyused in these countries because of high costs and relatively weak demand.
The SGCC started construction on UHV power lines at the end of 2006.