High-temperature superconductive cable insulation electrical characteristic test device

A technology for cable insulation and electrical characteristics, which is applied in the direction of measuring devices, lubrication indicating devices, measuring electricity, etc., to achieve the effect of easy use

Active Publication Date: 2009-03-18
SHANGHAI INT SUPERCONDUCTION TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

At present, there is no public information about such test devices in China.

Method used

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  • High-temperature superconductive cable insulation electrical characteristic test device

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Embodiment Construction

[0010] The test device of the present invention comprises a low-temperature pressure heat-insulating container 1 provided with a cover plate 2, an insulating sleeve 3 for introducing high voltage, a low-temperature sealing ring 4, a liquid level test and indicating device, a pressurization and pressure relief device, a test electrode, and a shielding cover , a base, and a mechanical lifting device.

[0011] The low-temperature pressure insulation container 1 should be able to withstand the pressure of 1.8Mpa, and can prevent the distribution of heat, and is used to hold low-temperature liquid nitrogen. It is a U-shaped part, and the upper port is provided with a stainless steel cover plate 2 and a sealing ring for sealing. There is a hole in the center of the cover plate 2, which is used to pass through the insulating sleeve 3; the cover plate 2 is equipped with a vacuum joint 5, a connecting pipe 6 for adding liquid nitrogen, and a connecting pipe 7 for applying pressure. The...

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Abstract

The invention provides a ultra-high temperature superconductive cable insulation electric character tester, comprising a low temperature pressure thermal insulation controller provided with a cover board, a hole at the center of the cover board, an insulation sleeve penetrating through the hole, a vacuum connector mounted on the cover board, a connecting tube for filling liquid nitrogen and a connecting tube for adding pressure which are mounted on the cover board, a test electrode in the low temperature pressure insulation container, and a conductive bar in the insulation sleeve, of which the upper end is connected with high voltage and the lower end is connected with the high voltage end of the test electrode. The ultra-high temperature superconductive cable insulation electric character tester can improve the electric property of the insulation material of a high temperature superconductive cable, under low temperature liquid nitrogen temperature, having simple operation.

Description

technical field [0001] The present invention relates to a test device, in particular to an electrical performance (such as breakdown field strength, partial discharge) of an insulating material (such as PPLP) used to test a high-temperature superconducting cable at a low temperature of liquid nitrogen (-197°C). test device. Background technique [0002] Due to its low loss and high current performance, high-temperature superconducting cables may become the direction of high-current power transmission in the future. Developed countries in the world have carried out vigorous research on high-temperature superconducting cables. The use of low temperature (CD) insulation is the development direction of high temperature superconducting cables. The electrical performance of insulating materials (such as PPLP) of high-temperature superconducting cables at low-temperature liquid nitrogen temperatures is an important parameter in the design of low-temperature insulated superconducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01F23/00
Inventor 张智勇宗曦华魏东张喜泽韩云武应启良张大义
Owner SHANGHAI INT SUPERCONDUCTION TECH CO LTD
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