Termination connection for superconductive cable

Abstract

A termination connection is configured by being provided with: a low-temperature container filled with a refrigerant; a current lead for a conductor, one end of the current lead being immersed in the refrigerant while the other end is pulled out to a normal temperature section; and a movable connection terminal for a conductor, the movable connection terminal electrically connecting the current lead for a conductor with the superconductive conductor layer of a superconductive cable. The superconductive conductor layer of a superconductive cable, of which the ends are stripped, is connected to the current lead for a conductor via the movable connection terminal for a conductor. The cable core of the superconductive cable can move in the lengthwise direction and rotate in the circumferential direction while keeping the superconductive conductor layer electrically connected to the current lead for a conductor. Moreover, the cable core is horizontally supported within the low-temperature container. As a consequence of the aforementioned configuration, the thermal expansion of the cable core under a heat cycle is absorbed, thereby being able to provide a simplified termination connection of which the size is reduced.

Description

technical field [0001] The present invention relates to a terminal connection part of a superconducting cable formed by accommodating a cable core having a skeleton and a superconducting conductor layer in a heat insulating tube. Background technique [0002] Conventionally, a superconducting cable using a superconducting wire that becomes superconducting at an extremely low temperature as a conductor is known. Superconducting cables are expected as power cables capable of transmitting large currents with low loss, and superconducting cables are being developed toward practical use. [0003] figure 2 An example of a superconducting cable is shown in . figure 2 The shown superconducting cable 10 is a single-core superconducting cable in which a single-core cable core 11 is accommodated in a heat insulating tube 12 . [0004] The cable core 11 is composed of a skeleton 111 , a superconducting conductor layer 112 , an electrical insulating layer 113 , a superconducting shiel...

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Problems solved by technology

Furthermore, the superconducting wire constituting the superconducting conductor layer 112 or the superconducting shielding layer 114 buckles, etc., and the performance of the superconducting cable 10 is remarkably degraded.

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