Breaking through the major core technology of superconducting cables to start a new journey
Time of issue：
2022-02-27
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Shanghai Securities News (Reporter Song Weiping) On December 22, the world's first 35 kV kilometer superconducting cable demonstration project built by State Grid Corporation in Shanghai was officially put into operation. This is a major core technological breakthrough in the field of new domestic power system construction, marking that my country's superconducting power transmission application has entered the global ranks.
The 35kV kilometer-level superconducting cable demonstration project is located in the core commercial area of Xuhui, connecting two 220kV substations with a total length of 1.2 kilometers, a rated current of 2200 amps, and a rated capacity of 133 MVA. It is a 35kV superconducting cable transmission project with the longest distance, the largest transmission capacity, and full commercial operation.
As one of the achievements of the strategic cooperation in science and technology industry jointly carried out by State Grid and Shanghai, the demonstration project was constructed, operated and maintained by State Grid Shanghai Electric Power. Construction started in April 2020 and took a year and a half to complete.
Superconducting power transmission is one of the most revolutionary cutting-edge technologies in the power industry today. The principle is that in the liquid nitrogen environment of minus 196 degrees Celsius, the superconducting properties of superconducting materials are used to make the power transmission medium close to zero resistance, and the power transmission loss is close to zero, so as to realize large-capacity power transmission at low voltage level.
application,superconducting,operation
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