Industrial planning of power transmission and transformation equipment

Power transmission and transformation equipment mainly includes overhead lines, lightning arresters, voltage transformers, current transformers, circuit breakers, disconnectors, grounding switches, reactors, capacitors, transformers, high-voltage cables, buses, transmission towers, transmission lines and other DC lines, valve halls, filters, etc

1998-2008 is a decade of rapid development of China's power transmission and transformation equipment manufacturing industry. Since 1998, China has recognized the importance of power transmission and transformation manufacturing industry for the development of our national economy, given strong support in policy, and made it clear that major projects must be combined with the goal of equipment localization. Among these landmark projects are the Three Gorges Power Transmission and Transformation Project, 750 kV Power Transmission and Transformation Project, UHV Power Transmission and Transformation Project, etc. These projects are all focused on promoting the development of China's power transmission and transformation manufacturing industry and improving the level of China's power transmission and transformation manufacturing industry.
Since 2006, the technical performance level of domestic power equipment has been greatly improved. The performance of many major products has reached the international advanced level, and some products have reached the international leading level. Especially in the development of power generation equipment, power transmission and transformation equipment, outstanding achievements have been made.

In the field of power transmission and transformation equipment, with the construction of a large number of key power transmission and transformation projects, the technical level and localization capacity of equipment manufacturing enterprises are constantly improving. At present, 500 kV and 750 kV ultra-high voltage power transmission and transformation equipment has been fully localized, and 1000 kV ultra-high voltage power transmission and transformation equipment has also basically achieved the goal of localization,± The manufacturing technology of 800 kV converter transformer has been mastered, the large capacity thyristor has been independently researched and developed, and the technical level and overall quality of the domestic power transmission and transformation equipment manufacturing industry have been greatly improved.

    “ The 12th Five Year Plan” During this period, the two grid companies will invest about 530 billion yuan to build UHV transmission projects, including about 231.1 billion yuan of UHV DC investment and about 298.9 billion yuan of UHV AC investment. With the approval of the second Huainan Shanghai UHV line and the completion acceptance of the Jindongnan UHV line expansion project, the State Grid Corporation of China has accelerated the pace of UHV promotion. It is expected that after the expansion project passes the load test, the UHV bidding will accelerate, which will bring tangible benefits to the demand for related equipment.

In the future, the technology of power transmission and transformation equipment manufacturing enterprises should develop in the following directions: first, ultra-high voltage; Second, intelligence; Third, energy-saving and environmental protection equipment; The fourth is system integration technology, which is developing towards intensification.