High voltage insulation current lead for superconductive electric device

A technology for power devices and insulation currents, applied in the field of current leads, can solve problems such as unstable insulation capacity and complex structure, and achieve the effect of solving high-voltage insulation technical problems

Inactive Publication Date: 2012-07-11
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of complex structure and unstable insulation ability in the prior art, and propose a low-temperature high-voltage insulated lead device. The present invention can be widely used in high-voltage superconducting power devices from room temperature to low temperature

Method used

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  • High voltage insulation current lead for superconductive electric device
  • High voltage insulation current lead for superconductive electric device
  • High voltage insulation current lead for superconductive electric device

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] The low-temperature and high-voltage insulated lead wire of the present invention is mainly composed of: copper conductor 1, insulating sleeve 3, wiring lug 6, insulator 11, lower sealing O-ring 9, middle sealing O-ring 10, upper sealing O-ring 12 and low-temperature container flange 14, etc. components.

[0021] Such as figure 1 As shown in a, the copper conductor 1 is a copper rod with uniform thickness. The low-temperature end B of the copper conductor 1 is inserted into the low-temperature container. There is a prefabricated terminal 2 at the end of the low-temperature end B of the copper conductor 1. The length of the copper conductor 1 is l. The insulating sleeve 3 is made of a material with good electrical insulation performance and good mechanical performance at low temperature, usually a glass fiber reinforced plastic pipe. T...

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Abstract

The invention relates to a high voltage insulation current lead for a superconductive electric device. A low temperature end B of a red copper conductor (1) is inserted into a low temperature container, and the tail end of the low temperature end B is provided with a connection terminal (2). The red copper conductor (1) is inserted into an insulation sleeve (3) from a room temperature end C of the insulation sleeve (3), a room temperature end A of the red copper conductor (1) is exposed out of the room temperature end C of the insulation sleeve (3); and screw threads (4) are arranged in the middle of the insulation sleeve (3). A connection nose (6) is pressed and connected with the end of the part of the room temperature end A of the red copper conductor (1), which is exposed out of the insulation sleeve (3), so as to form an insulation lead main body (7). A low temperature end F of the insulation lead main body (7) is arranged below the liquid level of liquid nitrogen or liquid helium in the low temperature container. A seal O ring and an insulator (11) are axially fixed on a low temperature container flange (14) by nuts and coaxial with the insulation lead main body (7). The room temperature end of the red copper conductor adopts a variable cross-section truncated cone structure from the flange position of the low temperature container to the low temperature end.

Description

technical field [0001] The invention relates to a current lead of a superconducting power device, in particular to a low-temperature, high-voltage insulated current lead. Background technique [0002] Superconducting power technology is a new type of power technology developed by utilizing the unimpeded high-density current-carrying capacity of superconductors and the physical characteristics of superconducting state-normal state transitions of superconductors, which can improve the quality of electric energy and improve the stability and reliability of power system operation , Reduce the voltage level, improve the security of the power grid; can greatly increase the capacity of a single machine and the transmission capacity of the power grid and greatly reduce the loss of the power grid; can greatly improve the power quality of renewable energy and effectively connect it with the large power grid. [0003] In recent years, the research and development of superconducting pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B12/14H01B12/04H01R11/12
CPCY02E40/641Y02E40/645Y02E40/60
Inventor 张京业戴少涛王子凯张东许熙周微微林良真肖立业
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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