Arrangement having a superconducting cable

Patent metadata

Field	Value
Publication number	US-9496072-B2
Application number	US-62384909-A
Country	US
Kind code	B2
Filing date	Nov 23, 2009
Priority date	Dec 15, 2008
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

An arrangement is specified having a superconducting cable (SK) which comprises a superconducting conductor ( 1 ) and a superconducting screen ( 3 ) which concentrically surrounds the same with the interposition of a dielectric ( 2 ). The cable (SK) is surrounded by a cryostat (KR) enclosing a free space (FR) for a coolant to be passed through, which cryostat (KR) which cryostat comprises two metallic tubes ( 4, 5 ) which are arranged concentrically with respect to one another and between which vacuum insulation is arranged. The screen ( 3 ) is composed of a superconducting material whose electrical resistance value in the normally conductive state is greater by a factor of at least 50 than the electrical resistance value of the material used for the conductor ( 1 ) in the normally conductive state.

First claim

The invention claimed is:

1. Arrangement having a superconducting cable, which comprises:
a superconducting conductor: and
a superconducting screen which concentrically surrounds the superconducting conductor with the interposition of a dielectric, said cable being surrounded by a cryostat, enclosing a free space for a coolant to be passed through, the cryostat having two metallic tubes which are arranged concentrically with respect to one another and between which vacuum insulation is arranged, wherein the screen is composed of a superconducting material whose electrical resistance value in the normally conductive state is greater by a factor of at least 50 than the electrical resistance value of the material used for the conductor in the normally conductive state.

2. Arrangement according to claim 1 , wherein the screen is composed of an oxidic superconducting material doped with rare earths.

3. Arrangement according to claim 2 , wherein the screen is composed of YBCO.

4. Arrangement according to claim 1 , wherein the conductor is composed of BSSCO, preferably with stabilization composed of copper.

5. Arrangement according to claim 1 , wherein the conductor is composed of a combination of ReBCO and copper.

6. Arrangement according to claim 5 , wherein the conductor is composed of a combination of YBCO and copper.

7. Arrangement according to claim 1 , wherein a layer which is closed in the form of a tube and is composed of ferromagnetic material is additionally provided outside the screen over the entire length of the cable.

8. Arrangement according to claim 7 , wherein the relative permeability of the ferromagnetic material is greater than 10.

9. Arrangement according to claim 7 , wherein the layer composed of ferromagnetic material is applied externally to the outer tube of the cryostat.

10. Arrangement according to claim 7 , wherein the outer tube of the cryostat is composed of ferromagnetic material.

11. Arrangement according to claim 7 , wherein the ferromagnetic material is arranged within the cryostat.

12. Arrangement according to claim 11 , wherein a layer composed of ferromagnetic material is applied externally to the screen.

13. Arrangement according to claim 11 , wherein the inner tube of the cryostat is composed of ferromagnetic material.

Assignees

• Soika Rainer
• Stemmle Mark
• Nexans

Inventors

• Soika Rainer
• Stemmle Mark

Classifications

• Y02E40/68

  Cross-Sectional Technologies · mapped topic

• H01B12/02 Primary

  characterised by their form · CPC title

• H02H7/001

  for superconducting apparatus, e.g. coils, lines, machines · CPC title

• Y02E40/641

  Cross-Sectional Technologies · mapped topic

• Y02E40/60

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