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Device and method for detecting dielectric insulation characteristics

A medium and characteristic technology, applied in the direction of measuring devices, testing dielectric strength, measuring electricity, etc., can solve the problems that cannot meet the test requirements of low temperature, high pressure, high voltage, and high air tightness at the same time, so as to ensure the airtightness , Improve experimental efficiency and ensure safety

Pending Publication Date: 2020-05-08
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the experimental device for dielectric insulation characteristics in the prior art cannot simultaneously meet the test requirements of low temperature, high pressure, high voltage, and high air tightness, thereby providing a method for testing dielectric insulation Characteristic apparatus and methods

Method used

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  • Device and method for detecting dielectric insulation characteristics
  • Device and method for detecting dielectric insulation characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment provides a device for detecting dielectric insulation properties, such as figure 1 shown, including,

[0053] The first cavity 2, the first electrode 3 and the second electrode 4 are arranged in the first cavity, the first electrode and the second electrode are suspended in the first cavity, the first electrode 3 is screwed with the first wire 7, close to The first wire end of the first electrode 3 is provided with a first insulator 11, the second electrode 4 is connected to the second wire 8 through the adapter 10, the second wire is screwed to the adapter 10, and the second electrode is connected to the adapter. Part 10 is screwed, and a second insulator is provided near the end of the second wire of the second electrode 4; the top end of the first cavity 2 is a flange cover 29, and the first insulator 22 and the second insulator 28 both pass through the flange cover 29 , fit tightly with the flange cover, and the first electrode and the second electr...

Embodiment 2

[0066] This embodiment provides a method for testing dielectric properties, using the device for detecting dielectric properties provided in Example 1, the testing method includes the following steps,

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Abstract

The invention belongs to the technical field of dielectric insulation characteristic testing, and particularly relates to a device and a method for detecting dielectric insulation characteristics. Thedevice comprises a first cavity which is provided with a sealed space for accommodating a medium and is used for testing the insulation characteristic of the medium to be tested; wherein a first electrode and a second electrode are arranged in the first cavity; a second cavity, provided with a sealed space for accommodating a medium and used for controlling the temperature of the first cavity; amedium container, connected with the first cavity through a pipeline; and an air extracting pump, used for extracting air in the device and adjusting the vacuum degree of the device. The device can simultaneously test the insulativity of a medium under the conditions of low temperature, high air pressure, high voltage and high air tightness, the minimum temperature can reach -269 DEG C, the maximum temperature can reach 300 DEG C, and the maximum pressure intensity can reach 30 atmospheric pressures.

Description

technical field [0001] The invention belongs to the technical field of dielectric insulation characteristic testing, and in particular relates to a device and method for detecting dielectric insulation characteristic. Background technique [0002] Cryogenic liquids are widely used in superconducting power devices, and the insulation properties of cryogenic liquids are directly related to the stable and safe operation of superconducting power devices. Insulation performance testing is of great significance for understanding the performance and failure mechanism of dielectrics, and at the same time provides a reference for equipment manufacturing and engineering applications. With the proposal of superconducting power / gas transmission integrated energy pipelines, in order to ensure the safety, stability and efficient utilization of electricity and liquid fuel co-transmission, it is necessary to explore the insulation properties of cryogenic liquid fuels. [0003] However, con...

Claims

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Application Information

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IPC IPC(8): G01R31/12G01R31/16
CPCG01R31/1263G01R31/1281G01R31/16
Inventor 任成燕张传升张帅邵涛邱清泉罗朝志桑文举陈建辉靖立伟
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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