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Electric connection structure for superconductor element

A technology for connecting structures and components, which is applied in the field of electrical connection structures, and can solve problems such as vertical shrinkage, downward translation, and fracture of conductors

Inactive Publication Date: 2009-09-23
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Furthermore, if the conductor is subjected to relatively low temperatures in the structure, especially the bottom regions 36 and 47, the conductor may shrink vertically
Its tip may thus translate downward, breaking

Method used

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  • Electric connection structure for superconductor element
  • Electric connection structure for superconductor element
  • Electric connection structure for superconductor element

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0031] figure 2 The top of such a connection structure as described above is shown.

[0032] The central conductor 40 therefore does not have an electrically insulating sheath 41 at its top end, and this conductor is connected outside the casing 48 at ambient temperature to a connection terminal 58 passing through the top wall 40 of the casing. The superconducting cables are thus fed at medium to high voltages, or devices at ambient temperature are fed at medium to high voltages from the superconducting cables.

[0033] In order to make the connection between the central conductor 40 and the connection terminal 58, the top end of this conductor is connected to the terminal 58 by means of the connection arrangement 1, which terminal is more generally referred to as a connection part, and reaches through the top wall 50 of the enclosure to a terminal 58 at ambient temperature. Outside the housing 48 in the housing and fixed to the top wall 50 by means of eg screws 58B, a seali...

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PUM

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Abstract

The invention relates to a high voltage electrical connection structure for a superconductive element (30) cooled by a cryogenic fluid (31) in a cryostat (33) and connected to an electrical bushing (39) that passes through at least one enclosure (48) at ambient temperature, said bushing (39) comprising a central conductor (40) having its top end connected by means of a connection arrangement (58) to a connection part extending to outside the enclosure (48) at ambient temperature and passing through a top wall (50) of said enclosure, said central conductor (40) being surrounded over the major fraction of the length by an electrically insulating sheath (41) fastened rigidly to the bottom wall (46) of said enclosure at ambient temperature. According to the invention, said connection arrangement (1) comprises a conductive part (2) mounted on said top end at ambient temperature of the central conductor and a plurality of deformable conductive elements (3) connected to said conductive part (58) and to said connection part, said conductive part (2) having a cylindrical wall (2A) surrounding said conductive elements (3) and forming a screen relative to the electric field.

Description

technical field [0001] The present invention relates to electrical connection structures for superconducting elements, such as cables for transmitting electric power at medium and high voltages. This structure is used to connect the ends of superconducting elements at cryogenic temperatures to equipment at ambient temperature, usually in air. Background technique [0002] Since there is a large temperature difference between the superconducting element and the equipment connected to it, that is, the temperature difference between the low temperature of about -200°C and the ambient temperature, it is necessary to interpose the superconducting element and the equipment Connection structures so that temperature transitions occur with as little heat loss as possible, while at the same time respecting electrical constraints, such as high voltage constraints when the components are cables. The structure then comprises an electrical bushing mainly consisting of a central conductor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/68H02G15/34H10N60/80
CPCY02E40/648H02G15/007H01R4/68H02G15/34Y02E40/60H01B12/00H01R4/02
Inventor 尼古拉斯·拉洛特塞巴斯蒂安·德尔普莱斯
Owner NEXANS