Three-phase coaxial high-temperature superconducting current-limiting cable

The invention discloses a three-phase coaxial high-temperature superconducting current-limiting cable which comprises a Dewar tube low-temperature container which is composed of an inner cylinder and an outer cylinder which are coaxially arranged in a sleeved mode. The superconducting cable is formed by coaxially winding three single-phase cables and is arranged on the inner side of the inner cylinder; the cooling structure comprises a cooling pipeline and at least two conveying pipes; the cooling pipeline is provided with at least two groups of spraying pieces, and any group of spraying pieces comprises at least two nozzles; any conveying pipe is connected with the corresponding nozzle through a connecting pipe, and an electromagnetic valve is arranged on the connecting pipe; and any group of temperature controllers comprises at least two probes, and any probe is electrically connected with the electromagnetic valve corresponding to the nozzle in the corresponding area. Different areas are cooled by spraying