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Device for testing AC loss of superconducting conductor

A technology of superconducting conductors and AC loss, which is applied in measuring devices, measuring electrical variables, and measuring dielectric properties. It can solve problems affecting the operation stability of superconducting magnets, reduce operating efficiency, and increase the burden on refrigerators. The effect of novel design, reliable structure and simple operation

Inactive Publication Date: 2019-01-29
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
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AI Technical Summary

Problems solved by technology

AC loss not only affects the stability of the operation of the superconducting magnet, but also reduces the operating efficiency and increases the burden on the refrigerator

Method used

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  • Device for testing AC loss of superconducting conductor
  • Device for testing AC loss of superconducting conductor
  • Device for testing AC loss of superconducting conductor

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Embodiment Construction

[0023] Such as Figure 4 As shown, a superconducting conductor AC loss testing device includes a low-temperature Dewar 1, a glass fiber reinforced plastic support 2 is arranged inside the low-temperature Dewar 1, a sample support 3 is installed on the glass fiber reinforced plastic support 2, and a sample support 3 is fixed on the sample support 3. The superconducting conductor 4 is clamped with a force applying device at both ends of the superconducting conductor 4, and a back field magnet 5 is respectively arranged on both sides of the superconducting conductor 4, and a helium gas outlet is respectively arranged at the upper and lower ends of the low temperature Dewar 1 6 and a liquid helium inlet 7, and a calibration heating resistor 8 is also provided on the sample holder 3.

[0024] Such as figure 1 As shown, the force applying device includes two pressure plates 9, and through holes are opened at the corresponding positions of the two pressure plates 9, and the correspo...

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Abstract

The invention discloses a device for testing the AC loss of a superconducting conductor, which comprises a low temperature Dewar, and is characterized in that the low temperature Dewar is internally provided with a fiber reinforced plastic bracket, a sample support is installed on the fiber reinforced plastic bracket, a superconducting conductor is fixed on the sample support, both ends of the superconducting conductor are clamped with a force applying device, two sides of the superconducting conductor are respectively provided with back field magnets, the upper and lower ends of the low temperature Dewar are respectively provided with a helium outlet and a liquid helium inlet, and the sample support is further provided with a calibration heating resistor. The device plays a great role inperformance testing for the AC loss of the superconducting conductor, the pressure received by a cable can be adjusted the stress applying device so as to simulate the AC loss performance of the tested cable under different electromagnetic loads, and there are detection coils in the X and Y directions, so that the magnetic moment change of the conductor in the two directions can be obtained. The device is simple to operate and reliable in structure, and provides good conditions for the development of superconducting conductor technologies in the future.

Description

technical field [0001] The invention relates to the technical field of AC loss testing, in particular to a superconducting conductor AC loss testing device. Background technique [0002] As a kind of clean energy, fusion energy is one of the dream energy of human beings. The tokamak type magnetic confinement nuclear fusion device is a reliable device for generating fusion energy. The full superconducting tokamak is an important guarantee for the continuous operation of the fusion reactor. On the basis of the successful establishment and operation of the all-superconducting non-circular cross-section Tokamak EAST, China is actively carrying out the construction of the International Thermonuclear Experimental Reactor ITER. At the same time, various countries have also started pre-research work on the next generation of fusion reactors. The superconducting magnet is an important part of the tokamak device, and its technology is the key technology of fusion engineering. Superc...

Claims

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Application Information

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IPC IPC(8): G01R27/26
CPCG01R27/2694
Inventor 何宇翔刘华军施毅周超秦经刚马红军郭亮
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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