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Experiment device for measuring direct-current breakdown voltage and pre-breakdown current of insulating liquid

A technology of DC breakdown voltage and insulating liquid, which is used in measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of large volume, inconvenient disassembly, cleaning and maintenance, and cumbersome experimental operation steps.

Active Publication Date: 2017-11-24
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing experimental equipment is usually complex in structure and large in size, resulting in high cost and increased test cost. In addition, the experimental operation steps are cumbersome, and it is not easy to disassemble, clean and maintain after the test.

Method used

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  • Experiment device for measuring direct-current breakdown voltage and pre-breakdown current of insulating liquid

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0025] It should be noted that when an element is referred to as being “fixed on”, “disposed on” or “installed on” another element, it may be directly on another element or there may be an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intervening element at the same time; the specific way that one element is fixedly connected to another element can be realized through existing technologies, and will not be discussed here. To repeat it again,...

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Abstract

The invention discloses an experiment device for measuring direct-current breakdown voltage and pre-breakdown current of insulating liquid. The experiment device comprises a fixing seat including an upper insulating cover plate and a lower insulating cover plate, a high-voltage electrode assembly including a pin type electrode and a first conductive rod, a grounding electrode assembly including a plate-type electrode and a second conductive rod, and a test groove, wherein the upper insulating cover plate is provided with a first assembling through hole, the lower insulating cover plate is provided with a second assembling through hole, the first conductive rod comprises a first installing end and a first wiring end, the pin type electrode is arranged at the first installing end, the second conductive rod includes a second installing end and a second wiring end, the plate-type electrode is arranged at the second installing end, the plate-type electrode and the plate-type electrode are located the liquid level of the insulating liquid to be measured. Therefore, due to simple structure, light weight and small size of the experiment device, the experiment operating steps can be simplified, the cost can be reduced, meanwhile dismounting, cleaning and maintenance after test completion are promoted, and mounting and dismounting are convenient.

Description

technical field [0001] The invention relates to the technical field of material performance detection, in particular to an experimental device for measuring the DC breakdown voltage and current before breakdown of an insulating liquid. Background technique [0002] In the high-voltage power industry, the insulation properties of insulating liquid materials used in power equipment directly determine the safety and reliability of power equipment and power grid operation. Therefore, it is particularly necessary to regularly test the electrical properties of related insulating liquid materials. The electrical properties of liquid materials under a DC electric field are important indicators for evaluating the dielectric strength of insulating materials. The current commonly used detection method is to control the discharge gap between the electrode pairs, and then through the breakdown discharge and measure the relevant parameters of the insulating liquid, and then conduct scient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1281
Inventor 景一傅明利侯帅卓然惠宝军王邸博张逸凡黄之明
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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