my country's first ultra -high -voltage electrical line line ushered in the 50th anniversary of the operation

Xinhua News Agency, Lanzhou, June 17 (Reporter Wang Mingyu) my country's first self -designed and built ultra -high -voltage transmission line 330 kV Liujiaxia -Tianshui -Guanzhong transmission line (hereinafter referred to as Liu Tianguan transmission line) ushered in formal investment on the 16th 50th anniversary. Since its investment, Liu Tianguan's transmission line has been transporting a total of 74 billion kWh, which has made significant contributions to promoting the economic development of the Northwest region, ensuring the steady operation of the Longhai Railway, and serving the society and people's livelihood.

In 1964, due to the solution to the power supply of the third -tier construction in the Northwest region, to ease the tension situation of power supply in Guanzhong, Shaanxi, and provides sufficient considerations such as sufficient power support for industrial and agricultural production and national defense construction in the Northwest region. Essence

Starting from the west of the line, the Liujiaxia Hydropower Station of Yongjing County, Gansu Province, has boosted the switching station. After 330 kV Qin'an transformer station in Tianshui, to Baoji City, Shaanxi Province, it across 14 counties in Shaanxi and Ganshan provinces, with a total length of 533 kilometers. Ten thousand kilowatts. The project was founded in 1969 and was put into operation on June 16, 1972.

This project was the transmission and transmission project with the longest transmission distance, the highest voltage level, and the largest transmission volume in my country at that time. It realized the upgrade leap from 220 kV to 330 kV. It was the development of my country's subsequent ultra -high -voltage transmission transmission projects in China. It laid a solid foundation.

It transmits Liujiaxia's rich hydropower to industrial bases such as Guanzhong and Tianshui. Since then, the Fengshui season of Shaanxi and Gansu can be "delivered to the east" and the dry season is "East Delivery Westward". The project greatly alleviated the urgent need of tight use of the three -line construction electricity, and a large number of enterprises were deeply benefited.

[Editor in charge: Wu Yongling]

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