Recently, LS Cable successfully contracted the power system operation of the 22.9 kV power distribution cable system in the Icheon substation in Gyeonggi-do, South Korea, and became the fifth company in the world to use superconducting cable technology on the actual power grid.
Superconducting cables use superconductors with a zero resistivity and are products that transmit large amounts of power remotely without any loss. The volume of superconducting cable is smaller than that of the general cable of the same class, and the compatibilizing effect can be increased by 5-6 times. It is a must for the three-phase, three-horizon and one-ring of the super high voltage power network layout project being promoted and the rural power grid reconstruction project. Indispensable products. The 10.5 kV class 75 m long line in Baiyin City, Gansu Province is currently the only superconducting cable transmission project in China.
The total length of the superconducting cable system prepared for the project by the LS cable is 410 meters. It is the world's longest superconducting cable for distribution. In the past, superconducting cables for power distribution used cases where junction boxes were used in partial phases. However, the junction box of this cable system is a three-phase one and is a unique superconducting circuit in the world.
Since the superconducting cable can be made long, commercialization of the superconducting cable is just around the corner. In addition, the zero-loss characteristics of superconducting distribution cables indicate that they can replace some of the existing power transmission cables and can also be applied to open-transmitting (DC 80 kV/AC 154 kV) superconducting power devices. This will boost the development of related technologies.
In addition, the LS cable in this project is also responsible for the development of the connection box between the superconducting cable junction box, the ordinary cable and the superconducting cable. Unlike overseas companies that are pursuing their own specifications, the system is the first international product to pass the internationally recognized Canadian Kinetrics.
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