The hottest UHV construction in the 12th Five Year

2022-09-22
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The investment of UHV construction in the 12th Five Year Plan is expected to reach 270 billion

our UHV AC and DC projects have been in safe operation for nearly four years and two and a half years respectively, with good electrical performance, various indicators reaching and exceeding the design standards and requirements, and withstood the test of harsh natural conditions and various operation modes. Liu Zhenya, Secretary of the Party group and general manager of the State Grid Corporation of China, said in an interview with the media during the 18th National Congress that at present, China not only fully owns the independent intellectual property rights of UHV technology, but also this technology is the only one in the world. China is fully equipped with the conditions for large-scale construction of UHV power, which can realize the transportation of coal and electricity from the air to the whole country, and solve the tense problem of coal and electricity transportation that has plagued China's economic and social development for a long time

up to now, the Anhui east Huainan Shanghai UHV AC transmission demonstration project, Jinping Sunan 800 kV HVDC project, Hami South Zhengzhou 800 kV HVDC transmission project and Xiluodu left bank Zhejiang Jinhua 800 kV HVDC transmission project have been started successively according to the annex "catalogue of key products in the development plan of new material industry" of the "1025 rdquo" The two driving lead screws of the compression testing machine must be properly lubricated. The lubricating oil is the mechanical oil specified by the manufacturer. When refueling, the dust shield at the opening of the two columns must be removed and painted with a brush, so that the oil does not flow downward The linguole League Nanjing UHV project has been approved, and the preparatory work for the Zhundong Chengdu 1100 kV HVDC project has also started

UHV construction drives into the fast lane

the acceleration of UHV construction injects a stimulant into the power equipment industry. In 2012, the State Grid Corporation of China will complete a fixed asset investment of 336.2 billion yuan, of which 309.7 billion yuan will be invested in electricity. 69000 kilometers of 110 (66) kV and above AC lines, 360million KVA of substation capacity, 6146 kilometers of DC lines and 51 million kw of converter capacity have been started; Put into operation 57000 kilometers of 110 (66) kV and above AC lines, 260 million KVA of variable capacity, 2095 kilometers of DC lines, and 14.4 million kw of commutation capacity. From the 2012 planning data of lines above 110 kV, AC transformation capacity and DC conversion capacity, UHV construction will become the key development direction in the future

following the Jinping Sunan 800 kV HVDC transmission line project, the Hami South Zhengzhou UHVDC transmission project started in May this year, and the Xiluodu Zhejiang 800 kV HVDC transmission project started at the end of July; At the same time, in September 2011, Huainan Shanghai UHV AC transmission line was approved by the national development and Reform Commission, which means that the UHV AC transmission project, which has been stagnant for nearly two years, was restarted; In September this year, the Ximeng Nanjing UHV AC project achieved a roadblock. The grand blueprint of UHV four AC and three DC of State Grid Corporation of China is becoming clearer and clearer

the power equipment industry continues to expand

UHV is an important increase in electricity investment during the 12th Five Year Plan. In the structural opportunities of power investment in the second half of this year and even during the 12th Five Year Plan period, from the perspectives of energy demand, the demand for long-distance and large-scale allocation of power and the state's encouragement of high-end equipment manufacturing industry with independent technology, UHV is still the inevitable choice for power construction. Hongyuan Securities believes that under the premise of large-scale power shortages, high-end equipment manufacturing with national support for independent technology and high certainty of overall investment in electricity, UHV is expected to truly enter the peak period of construction in the next three years

during the 12th Five Year Plan period, the investment amount of UHV is expected to reach 270 billion yuan, which is more than 13 times higher than the investment of 20billion yuan during the 11th Five Year Plan period. The total investment in electric intelligence is 286.11 billion yuan, and the average annual investment is and does not coincide with the main target of 57.22 billion yuan. High voltage switchgear industry is expected to achieve sustained and stable development in the next few years. Zhang Meng, party secretary and senior engineer of Xi'an XD switchgear Co., Ltd., said in an interview with China Power News

in the previous Anhui east Huainan Shanghai UHV AC transmission demonstration project, China West Power won the highest share. Its wholly-owned subsidiaries Xi'an XD switch electric Co., Ltd. and Xi'an XD Transformer Co., Ltd. received the notice of winning the competitive negotiation and procurement of the above project, and were determined as the successful suppliers. The products involved include 9 bays of 1000 kV GIS switchgear, 2 sets of 1100 kV GIS bus equipment, 11 sets of 1000 kV transformers and 14 sets of 1000 kV reactors

in the bidding of Hami South Zhengzhou 800 kV HVDC transmission project of State Grid Corporation of China, Tianwei baobian won a total of orders for 12 low-end converter transformers in Zhengzhou station and 2 transformers for Zhengzhou station, which also become the only way for the sustainable development of rubber, with a bid winning amount of 500million yuan

China has the conditions for large-scale construction of UHV power. It is expected that the construction of UHV power will be formed on a large scale during the 13th Five Year Plan period, and the maximum transmission capacity will increase several times from the current 40million to 50million kW, so as to meet the needs of China's energy development. Zhang Xin, chairman of TBEA Co., Ltd., said that at present, the Xinjiang East power transmission UHVDC project participated by TBEA has been fully started, and the Zhundong Chongqing 1100 kV High Voltage DC transmission project will be developed and completed within next year

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