Method for setting up a transmission link for electrical energy

Patent metadata

Field	Value
Publication number	US-10944250-B2
Application number	US-201716309013-A
Country	US
Kind code	B2
Filing date	May 31, 2017
Priority date	Jun 13, 2016
Publication date	Mar 9, 2021
Grant date	Mar 9, 2021

Abstract

A method is provided for setting up a transmission link for electrical energy, in which at least one superconductive cable and a cryostat surrounding the same are used, the cryostat having two metal tubes arranged concentrically in relation to one another, between which a vacuum insulation is provided. The ends of the cryostat in the assembled state as well as the superconductive cable located in the same are attached on fixed parts of the transmission link. At least at one end of the cryostat, there is gaplessly connected to the same a tube body which is bent by an angle of at least 180° and likewise consists of two metal tubes arranged concentrically in relation to one another, between which a vacuum insulation is provided. The superconductive cable protruding from the cryostat is arranged in the tube body at room temperature in such a way that it runs at least in the direct proximity of the wall of the inner tube of the tube body that has the greater bending radius.

First claim

The invention claimed is:

1. An arrangement for connecting at least one superconductive cable and a cryostat surrounding the superconductive cable to at least one end termination of a transmission link, where the cryostat has an outer metal tube and an inner metal tube arranged concentrically, between which a vacuum insulation is provided, said cryostat further having a coolant therein,
wherein said arrangement comprises:
a bent tube body having a metal outer tube and a metal inner tube, between which a vacuum insulation is provided,
a first end of the tube body, and said superconductive cable, which is enclosed by the tube body, are connected to said at least one end termination of said transmission link,
wherein said tube body is bent at an angle of at least 180° and is connected at a second end to the cryostat in a fixed and sealed manner,
wherein said metal inner tube and said metal outer tube of said tube body have a greater diameter than corresponding inner and outer metal tubes of the cryostat,
wherein said tube body has dimensions such that at room temperature the superconductive cable, at the location where it extends from the cryostat into the tube body, is directly proximate the wall of the metal inner tube of said tube body which has a greater bending radius, and wherein said tube body has dimensions such that at cooling operating temperature the superconductive cable, at the location where it extends from the cryostat into the tube body, is directly proximate the wall of the metal inner tube of said tube body which has a smaller bending radius.

2. The arrangement according to claim 1 , wherein the tube body is a prefabricated element, separate from said cryostat.

Assignees

• Nexans

Inventors

• Stemmle Mark
• Lange Stephan

Classifications

• Y02E40/60

  Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment · CPC title

• H02G15/34 Primary

  Cable fittings for cryogenic cables {(superconductive cables per se H01B12/00)} · CPC title

• H01B12/16

  characterised by cooling · CPC title

• H01B12/02

  characterised by their form · CPC title