In a blink of an eye, it has been "working" for fifty years ...

my country's first design and construction of itself

Ultra -high voltage transmission line

330 kV Liujiaxia -Tianshui -Guanzhong transmission line

We ushered in the 50th anniversary of the official investment on the 16th

Dealing

Liu Tianguan's transmission line accumulation

Transportation power is 74 billion kilowatt -hours

In order to promote economic development in the Northwest region

Guarantee the smooth operation of the Longhai Railway

Serving society and people's livelihood to make significant contributions

my country's first ultra-high voltage transmission line 330 kV Liujiaxia-Tianshui-Guanzhong transmission line. (Photo Conferring of State Grid Gansu Electric Power Company)

1964

Out of solving the Northwest region

Three -line construction power supply issues

Relieve in Guanzhong, Shaanxi

Power supply tension situation

For industrial and agricultural production and national defense construction in Northwest China

Provide major considerations such as adequate power support

The state proposed to build a 330 kV transmission and substation project

From the west of the line, the Liujiaxia Hydropower Station of Yongjing County, Gansu Province

330 kV Qin'an transformation station via Tianshui

Baoji City, Shaanxi Province

14 counties across Shaanxi and Gansu provinces

533 kilometers in length

Design conveying capacity 420,000 kilowatts

Engineering preparation was built in 1969

June 16, 1972 put it in operation

330 kV Qin'an transforming power stations at the time of construction. (Photo Conferring of State Grid Gansu Electric Power Company)

The project was the longest transmission distance in my country at that time

The highest voltage level

The power transmission and transmission project with the largest transmission capacity

Implementing China Grid

From 220 kV to 330 kV upgrade leap

For the development of the subsequent ultra -high -voltage transmission and transformation project in China

It laid a solid foundation

Now 330 kV Qin'an transformation station. (Photo Conferring of State Grid Gansu Electric Power Company)

It will be Liujiaxia's rich hydropower

Transfer to industrial bases such as Guanzhong and Tianshui

Since then, the Fengshui season of Shaanxi and Gansu can be "sent to the east"

In the dry season, "Dongdian West Delivery"

The project greatly alleviates the third -line construction

Electricity is tight and urgent

A large number of enterprises have been deeply benefited

Source: Xinhua News Agency

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