Faint superconducting cable

"Superconducting cable", such as a bright pearl on the crown, leads the future of the development of the cable industry. One kilogram of superconducting cable can complete the transmission of 77 kilograms of ordinary cable, which greatly saves the amount of traditional copper.

Superconducting cable advantages:
1. Large capacity: The current transmission capacity of superconducting cables with the same cross-section is 3 to 5 times that of conventional cables.
2. Low loss: Superconducting cable adopts no resistance to transmit large current at liquid nitrogen vaporization temperature (about -196°C), conductor loss is less than one-tenth of conventional cable, plus the energy loss of refrigeration, its total running loss is also Only 50%-60% of conventional cables.
3, no pollution: superconducting cable will not pollute the environment, and oil-filled conventional cable is the risk of oil spill pollution of the environment.
4. Material saving: One kilogram of superconducting cable can complete the conduction of 77 kilograms of ordinary cable, which greatly saves the amount of traditional copper. Equivalent transmission capability Superconducting cables use less metal and less insulation than conventional cables.
5, the use of superconducting cables, low noise, less electromagnetic pollution.
6. Small size: It saves the space and space of the transmission system and saves a lot of valuable land resources.
7, high safety and reliability, basically eliminate fire hazards.

The main application areas:
Superconducting cables are mainly used in both power generation and power grids.
The power generation sector mainly comes from the procurement of approximately 1.1 billion yuan of cable purchased by the “artificial sun” from China; the power generation sector is in the stage of small-scale trial operation, and the cable systems of the United States, Denmark, and China are each 30 meters long.
In power grid applications, superconducting cables are key technologies for smart grids. The superconducting products for smart grids are not just superconducting cables, but also superconducting generators, superconducting transformers, superconducting current limiters, and superconducting energy storage devices. The development of various products is mutually restrictive. If the price of the superconducting cable is attractive enough, the commercial application prospect of entering the smart grid should be very broad.

Development analysis:
The large-scale industrialization of superconducting cables is still not available. According to reports, the State Grid is planning to build a 1km/110kV high temperature superconducting cable demonstration project, which is expected to be completed in 2012. It is also stated that the construction and investment of the state-owned two major power grids for superconducting pilot demonstration projects will greatly stimulate the development of the domestic superconducting equipment industry, and the huge investment prospect of the superconducting industry will thus emerge.
However, the head of the Institute of Superconducting Power of the Chinese Academy of Electric Power has come to Xiaokang recently and said that at this stage, superconductors still do not have the conditions for large-scale industrialization, but they also need to stimulate the development of related equipment by expanding demonstrations to promote the development of the superconducting industry. .
Rationally treating the advantages of superconducting cables in future market superconducting materials, like nanomaterials, is a world-renowned knowledge of science and technology, and it does not need to be described too much. After nuclear power, wind power, submarine and ultra-high voltage cables, will it rise again? Superconducting cable heat is still unknown. For example, it is not a bad idea to hold some seminars on superconducting cables in a small area. There is no need to use superconducting cables to blow people's attention. We should treat the future market of superconducting cables rationally. Even if China’s future demand for superconducting cables has increased significantly, due to restrictions on superconducting basic research, technical personnel, superconducting materials, and cable process equipment, as well as the concept of pricing policies, superconducting cables The price will definitely be much higher than the existing ordinary cable, and it will never be more than the amount of the ordinary power cable, and only a few large cable companies in China can manufacture this high-tech cable product. For the average SME, Instead of being onlookers of high-tech products, it is better to develop new products with high technological content and high added value.