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Partial discharge comprehensive inspection instrument for high-voltage power equipment

A high-voltage power equipment, partial discharge technology, applied in the field of high-voltage power transmission and transformation, can solve the problems of a single detection instrument, input labor, limited detection range, etc., to achieve the effect of improving the inspection effect, avoiding safety accidents, and increasing the range of warnings

Pending Publication Date: 2020-12-01
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing partial discharge comprehensive inspection instrument needs to be manually carried to monitor the power equipment inside the power distribution cabinet, which has safety risks and requires regular labor. At the same time, the existing partial discharge comprehensive inspection instrument is generally placed inside A single detection instrument, which will lead to a limited detection range, large limitations, and prone to detection errors

Method used

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  • Partial discharge comprehensive inspection instrument for high-voltage power equipment
  • Partial discharge comprehensive inspection instrument for high-voltage power equipment
  • Partial discharge comprehensive inspection instrument for high-voltage power equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] refer to Figure 1-3 , a comprehensive partial discharge inspection instrument for high-voltage power equipment, including a power distribution cabinet 1 and a mounting plate 5, the outer wall of one side of the mounting plate 5 is fixedly connected with a chute 11, and the inner wall of the chute 11 is slidably connected with a slider 22, the slider The outer wall of 22 is fixedly connected with a slide plate 18, the outer wall of the slide plate 18 is fixedly connected with a fixed frame 7, and the inner wall of the fixed frame 7 is fixedly connected with a TEV sensor 6, a UHF sensor 8, a non-contact AE sensor 16 and a contact AE sensor 17 , the outer wall of the contact AE sensor 17 is fixedly connected with a conductive rod 14, and the top outer wall of the conductive rod 14 is fixedly connected with a conductive frame 23, and the top outer wall of the conductive frame 23 is fixedly connected with a flexible conductive plate 9 equidistantly. A variety of measurement...

Embodiment 2

[0036] refer to Figure 1-4 , a comprehensive partial discharge inspection instrument for high-voltage power equipment, including a power distribution cabinet 1 and a mounting plate 5, the outer wall of one side of the mounting plate 5 is fixedly connected with a chute 11, and the inner wall of the chute 11 is slidably connected with a slider 22, the slider The outer wall of 22 is fixedly connected with a slide plate 18, the outer wall of the slide plate 18 is fixedly connected with a fixed frame 7, and the inner wall of the fixed frame 7 is fixedly connected with a TEV sensor 6, a UHF sensor 8, a non-contact AE sensor 16 and a contact AE sensor 17 , the outer wall of the contact AE sensor 17 is fixedly connected with a conductive rod 14, and the top outer wall of the conductive rod 14 is fixedly connected with a conductive frame 23, and the top outer wall of the conductive frame 23 is fixedly connected with a flexible conductive plate 9 equidistantly. A variety of measurement...

Embodiment 3

[0043] refer to Figure 1-4 , a comprehensive partial discharge inspection instrument for high-voltage power equipment, including a power distribution cabinet 1 and a mounting plate 5, the outer wall of one side of the mounting plate 5 is fixedly connected with a chute 11, and the inner wall of the chute 11 is slidably connected with a slider 22, the slider The outer wall of 22 is fixedly connected with a slide plate 18, the outer wall of the slide plate 18 is fixedly connected with a fixed frame 7, and the inner wall of the fixed frame 7 is fixedly connected with a TEV sensor 6, a UHF sensor 8, a non-contact AE sensor 16 and a contact AE sensor 17 , the outer wall of the contact AE sensor 17 is fixedly connected with a conductive rod 14, and the top outer wall of the conductive rod 14 is fixedly connected with a conductive frame 23, and the top outer wall of the conductive frame 23 is fixedly connected with a flexible conductive plate 9 equidistantly. A variety of measurement...

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Abstract

The invention belongs to the technical field of high-voltage power transmission and transformation, and particularly relates to a partial discharge comprehensive inspection instrument for high-voltagepower equipment. An existing partial discharge comprehensive inspection instrument needs to be manually lifted to monitor power equipment in a power distribution cabinet. In order to solve the problems that an existing partial discharge comprehensive inspection instrument is limited in detection range, large in limitation and prone to detection errors due to the facts that safety risks exist andlabor force needs to be input at regular intervals, and meanwhile a single detection instrument is generally placed in the existing partial discharge comprehensive inspection instrument, the followingscheme is provided, and the partial discharge comprehensive inspection instrument comprises a power distribution cabinet and an installation plate. According to the invention, a fixed frame is arranged, and a TEV sensor, a UHF sensor, a non-contact AE sensor and a contact AE sensor are installed in the fixed frame; detection in various measurement modes is carried out through various sensors, sothat detection errors are avoided, meanwhile, the contact type AE sensor is provided with a flexible conductive plate, measurement of all space points in the power distribution cabinet is carried out,and the inspection effect is improved.

Description

technical field [0001] The invention relates to the technical field of high-voltage power transmission and transformation, in particular to a comprehensive inspection instrument for partial discharge of high-voltage power equipment. Background technique [0002] The internal insulation defect of power equipment is the main cause of its failure. At present, the detection methods for insulation defects mainly include withstand voltage test and partial discharge detection. Considering that partial discharge detection has the outstanding advantages of simple operation, live detection, and early detection of insulation defects, partial discharge detection has become the main detection method for internal insulation defects of power equipment; the so-called partial discharge is a part of the insulation medium. This kind of electrical discharge refers to a discharge phenomenon of non-penetrating discharge channels caused by only some areas in the insulation system under the action ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G08B21/18
CPCG01R31/1227G08B21/185
Inventor 岳洋张云王东辉宋彦军张东坡张静玉刘磊赵智龙
Owner STATE GRID CORP OF CHINA
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