Method of electrically conductively connecting two superconductive cables

Patent metadata

Field	Value
Publication number	US-9418777-B2
Application number	US-201414339591-A
Country	US
Kind code	B2
Filing date	Jul 24, 2014
Priority date	Jul 25, 2013
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

A method is disclosed for electrically conductively connecting two superconductive cables. The ends of the two cables are arranged next to each other and parallel to one another, in such a way that their free ends point in the opposite direction, and their conductors are located at least approximately on the same level next to each other. Two conductors of the two cables are electrically conductively connected to each other through electrical contact elements ( 10, 11, 12 ). The screens ( 6 ) of the two cables ( 1, 2 ) are connected through by separate contact elements ( 13, 14, 15 ) and the two cable ends are treated in this manner for constructing a transmission length for electrical energy are arranged jointly in a housing ( 16 ) of a cryostat so that during operation of the transmission length, a flowable cooling agent with electrically insulating properties flows through a housing ( 16 ) of a cryostat.

First claim

The invention claimed is:

1. Method for electrically conductively connecting two superconductive cables which are each arranged concentrically relative to each other and are each surrounded by a dielectric, and have an electrically effective screen mounted above the outer dielectric by means of which the conductors and screens to be connected are initially freed of surrounding layers at the ends of the two cables and are subsequently electrically conductively connected to each other, said method comprising the steps of:
the ends of the two cables are arranged next to each other and parallel to one another such that their free ends point in opposite directions and their conductors are located at least approximately on the same level;
the ends of the two cables are secured relative to each other;
two conductors of the two cables are always connected to each other electrically conductively through electrical contact elements;
the screens of the two cables are electrically conductively connected through by means of separate contact elements; and
the two cable ends treated in this manner are arranged in a housing of a cryostat for constructing a transmission length for electrical energy jointly in a housing of a cryostat which, during operation of the transmission length, a flowable cooling agent with electrically insulating properties flows through a housing of a cryostat.

2. Method according to claim 1 , wherein each of the two cables is initially mounted in a cryostat connected to the housing in such a way that the respective cable ends protrude out of the corresponding cryostat and in the housing,
the two cable ends are mechanically connected to one another in the still open housing,
the contact elements are mounted on the exposed conductors and screens of the two cables,
the contact elements are mounted within the housing on the exposed conductors and screens of the two cables,
a conductive connection is effected between the screens of the two cables, and
the housing is subsequently locked.

3. Arrangement manufactured with the method according to claim 2 , wherein
in a housing constructed as a cryostat, the ends of two superconductive cables are arranged whose conductors and screens ( 6 ) are at these ends freed of surrounding layers,
the conductors of the two cables are connected to each other electrically conductively by means of electrical contact elements which extend transversely of their axial direction, and
that the screens of the two cables are electrically conductively connected through by means of separate contact elements.

Assignees

• Nexans

Inventors

• Stemmle Mark
• Schmidt Frank

Classifications

• H01B12/16 Primary

  characterised by cooling · CPC title

• H02G15/34

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

• Y10T29/49014

  Superconductor · CPC title

• H01B13/0036

  Details · CPC title

• H01B12/06

  Films or wires on bases or cores · CPC title