A double-layer electromagnetic shielding high-temperature superconducting cable

Abstract

The invention provides a double-layer electromagnetic shielding high-temperature superconducting cable, which comprises a superconducting conductor layer, a metal particle shielding layer and a metalfilm shielding layer. The superconducting conductor layer is successively wrapped in a irst electrical insulating layer and the metal film shielding layer. The superconducting conductor layer, the first electrical insulating layer and the metal film shielding layer form a superconducting conductor core; A low-temperature thermostat is arranged outside the superconducting conductor core; The metalparticle shield layer is wound around the outer wall of the cryogenic thermostat; A protective sleeve is also arranged outside the metal particle shielding layer. The invention solves the problem thatthe metal film is easy to cause extra eddy current loss, and is easy to be damaged in manufacture and use, and the shielding effect is limited, the ,meesh wire manufacturing process is complex, and often requires greater shielding layer thickness, in order to achieve more perfect shielding effect of the technical problems.

Description

technical field [0001] The invention relates to the technical field of superconducting cables, in particular to a double-layer electromagnetic shielding high-temperature superconducting cable. Background technique [0002] With the rapid development of industry and economy, people's demand for electric energy has increased rapidly, and the requirements for power grid transmission density and capacity have also gradually increased. Compared with traditional copper cables, high-temperature superconducting cables have the advantages of high transmission current density, light weight, low loss, and large transmission capacity. From the perspective of energy resources, they also have the advantages of saving resources and being environmentally friendly. In the future, the application of high-temperature superconducting cables for power transmission will be one of the promising development directions. At present, many experimental lines applied to short-distance high-current powe...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a double-layer electromagnetic shielding high-temperature superconducting cable, which solves the problem that the metal film is easy to cause additional eddy current loss, and is easily damaged during manufacture and use, resulting in limited shielding effect; the manufacturing process of the mesh metal wire is complex, and Technical problems that often require a larger shielding layer thickness to achieve a more complete shielding effect

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