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China Starts Construction of World's First 1,100kv DC Line
   2016-01-13 19:00:15    CRIENGLISH.com      Web Editor: Guo Jing

The world's first 1,100 kilovolt direct current electricity transmission line project starts on January 11, 2016, in eastern Junggar Basin, northwest China's Xinjiang Uygur Autonomous Region. [Photo: People.cn]

China started to build world's first 1,100 kilovolt direct current electricity transmission line on Monday.

This is a power line with the highest voltage, biggest transmission capacity, longest distance and the latest technology in the world.

It will start from northwest China's Xinjiang Uygur Autonomous Region, connecting Gansu Province, Ningxia Hui Autonomous Region, Shaanxi Province, Henan Province and Anhui Province.

The whole length will be over 3,300 kilometers. When finished in 2018, its transmission capacity will be 12 million kilowatt.

Researcher of Chinese Academy of Sciences, Chen Weijiang, said the system adopted the 1,100 kilovolt voltage for the first time.

"Its nominal voltage is 37.5 percent higher than those with a 800-kilovolt nominal voltage. And the transmission capacity is 50 percent more. We also increased the transmission distance from 2,000 to 3,000 kilometer."

Another ultra-high voltage AC transmission lines are now under live-line operations in Tianjin.

It will deliver clean energy from Inner Mongolia to Tianjin, Hebei and Shandong Province.

The 1,000 kilovolt ultrahigh AC transmission line project will reduce coal consumption by 9 million tons and carbon dioxide by 26.9 million tons.

It is of great significance in controlling haze and fog and improving the air quality.

The whole project is expected to end in April this year and put into operation by the end of October.

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