Split-type high-pressure cavity structure and measurement method for comprehensive dielectric property measurement

A dielectric performance, split-type technology, which is applied in the field of split-type high-pressure and high-strength cavity structure and measurement, can solve problems affecting peripheral devices, etc., and achieve the effect of convenient installation and removal, convenient disassembly, and accurate dielectric performance measurement

Active Publication Date: 2022-04-01
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a split type for comprehensive dielectric property measurement in order to overcome the defects in the prior art that the existing pressure chamber cannot withstand high pressure or when the polymer sample is extended and extruded when subjected to high pressure, which will affect peripheral devices. High pressure cavity structure and measurement method

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  • Split-type high-pressure cavity structure and measurement method for comprehensive dielectric property measurement
  • Split-type high-pressure cavity structure and measurement method for comprehensive dielectric property measurement
  • Split-type high-pressure cavity structure and measurement method for comprehensive dielectric property measurement

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Embodiment 1

[0049] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, this embodiment provides a split-type high-pressure cavity structure for comprehensive dielectric performance measurement, which is used to measure the comprehensive dielectric performance of insulating dielectrics, including dielectric constant, dielectric loss tangent, conductivity, space charge, glass transition pressure, etc.

[0050] The following content firstly describes the structure of the split type high-pressure chamber in detail, and then discusses how to use the invented split-type high-pressure chamber structure to measure the comprehensive dielectric properties.

[0051] 1. Split type high pressure chamber structure

[0052] The split-type high-pressure cavity structure includes an anti-expansion protection steel sleeve 1, an epoxy glass fiber sleeve 2, a first connection hole 7 and a second connection hole 8, and the anti-expansion protection steel sleeve 1 is set on the epoxy glass On th...

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Abstract

The invention relates to a split-type high-voltage strong cavity structure and a measurement method for comprehensive dielectric performance measurement, comprising an anti-swell protection steel sleeve, an epoxy glass fiber sleeve, a first connection hole and a second connection hole, and an anti-swell protection steel sleeve. The sleeve is arranged on the outside of the epoxy glass fiber sleeve, and the first connection hole is located above the second connection hole. The split interface of the epoxy glass fiber sleeve is located below the first connection hole; when testing the polymer flat sample, the polymer flat sample is located below the split interface of the epoxy glass fiber sleeve; the epoxy glass fiber sleeve is made of glass fiber. Compared with the prior art, the present invention prevents the risk that the polymer flat sample will be extruded to the peripheral gap under high pressure, adopts epoxy glass fiber composite material as the inner layer jacket material, and its good insulation performance ensures the comprehensive dielectric performance. Accuracy of electrical performance measurements.

Description

technical field [0001] The invention relates to the technical field of comprehensive dielectric property measurement of insulating materials, in particular to a split-type high-pressure cavity structure and a measurement method for comprehensive dielectric property measurement. Background technique [0002] High-voltage subsea direct current transmission is crucial for cross-sea power transmission and distribution such as island wind farms and photovoltaic power generation. Compared with inter-island overhead line transmission, it has a stronger ability to cope with severe weather such as strong wind, lightning strike, pollution, ice and snow, and the submarine power transmission cable has a long service life, stable transmission quality, and is not easily affected by external electromagnetic interference. The inter-island power transmission in the world mostly adopts the high-voltage submarine power transmission with obvious advantages, so the application of submarine cable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/16
CPCG01R31/16
Inventor 张冶文余朝湖徐景贤郑飞虎牟龙华
Owner TONGJI UNIV
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