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Terminal apparatus with built-in fault current limiter for superconducting cable system

一种终端设备、超导电缆的技术，应用在具有嵌入式故障电流限制器的终端设备领域，达到容易设计的效果

Inactive Publication Date: 2010-12-08
LG CABLE LTD (KR)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, since the SFCL of the related art is only set to protect the power system, it is necessary to increase the protection function when designing the superconducting cable system

Method used

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  • Terminal apparatus with built-in fault current limiter for superconducting cable system
  • Terminal apparatus with built-in fault current limiter for superconducting cable system
  • Terminal apparatus with built-in fault current limiter for superconducting cable system

Examples

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Embodiment Construction

[0023] Example embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which example embodiments are shown.

[0024] figure 2 A terminal device for a superconducting cable system according to an embodiment is shown. exist figure 2 in, with figure 1 Components that are the same are marked with the same reference numerals. Such as figure 2 As shown in , a superconducting fault current limiter (SFCL) is embedded in the terminal equipment 100 for a superconducting cable system according to this embodiment.

[0025] Specifically, the terminal equipment 100 for a superconducting cable system according to this embodiment includes: a refrigerant tank 30 filled with a refrigerant 31 inside, and the refrigerant tank 30 is connected with the superconducting cable 20; the vacuum insulation container 40, the vacuum insulation container 40 surrounds the outside of the refrigerant tank 30; the insulator 50, the insulator 50 is arranged...

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PUM

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Abstract

A terminal apparatus for a superconducting cable connects a power appliance such as an overhead transmission cable or a breaker in an ambient temperature state to a superconducting cable through which power is transmitted at a cryogenic temperature. The terminal apparatus comprises: a refrigerant tub which is connected to the end of a superconducting cable and is filled with a refrigerant; a vacuum heat insulating container that surrounds the outer portion of the refrigerant tub; a current lead of which one end is connected to the end of the superconducting cable and of which the other end is connected to an overhead transmission cable or a power appliance through both the refrigerant tub and the vacuum heat insulating container; and a superconducting fault current limiter that limits a fault current by being installed at the central portion of the current lead in the refrigerant tub. As a superconducting fault current limiter is built in the terminal apparatus, the terminal apparatus itself can play the role of a fault current limiter too. The terminal apparatus can hence protect a superconducting cable from a fault current directly by limiting the fault current flowing to the superconducting cable when a power transmission fault occurs.

Description

technical field [0001] The invention relates to a terminal device for a superconducting cable system. More specifically, the present invention relates to a terminal device with an embedded fault current limiter for a superconducting cable system, wherein a superconducting fault current limiter (SFCL) is embedded in the terminal device such that the terminal The device itself can also function as a fault current limiter. Background technique [0002] Terminal equipment for superconducting cable systems is a device that interconnects superconducting cables and normal conducting cables, that is, it is a device used to connect superconducting cables with overhead cables or storage devices such as circuit breakers at room temperature. A connected device for electrical installations, electricity is transmitted at cryogenic temperatures through the superconducting cables. [0003] Such a terminal device for a superconducting cable system is disclosed in Korean Patent No. 10-05087...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B12/00
CPCY02E40/648H02G15/34Y02E40/60H01B12/00H01B12/14H10N60/81
Inventor 张铉万李秀吉金春东
Owner LG CABLE LTD (KR)
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