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A test platform for water diffusion test of composite insulator with sheath mandrel

A technology of composite insulators and test platforms, applied in the direction of testing dielectric strength, instruments, measuring devices, etc., can solve the problems of test result analysis error influence, repetitive labor, low work efficiency, etc.

Active Publication Date: 2022-07-12
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no test platform specially suitable for carrying out the water diffusion test of composite insulator with sheathed mandrel on the market. Most of the test projects are built with traditional voltage withstand equipment and external microammeters, because each insulator sample needs to be tested. Carry out data monitoring and analysis, so the test can only be carried out on samples one by one, which has low work efficiency and test results are affected by human analysis errors
At the same time, frequent replacement of composite insulators not only produces a lot of repetitive labor, but also easily forgets the grounding wire during the replacement of wiring, causing a series of safety problems

Method used

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  • A test platform for water diffusion test of composite insulator with sheath mandrel

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Embodiment 1

[0031] The embodiment of the present invention provides a test platform for a water diffusion test of a composite insulator tape sheathed mandrel. The specific implementation method includes the following steps:

[0032] Step 1: Use a diamond circular saw blade to cut 6 samples on one insulator under running cool water, the cutting direction is 90° to the axis of the core body, and the length of the sample should be 30mm±0.5mm (mm). The cutting surface of the sample should be polished with a 180-mesh fine abrasive cloth, and the two cutting end surfaces should be clean and parallel to each other.

[0033] Step 2: After scrubbing the cut samples with isopropanol and filter paper before boiling, immediately place them in a suitable container (such as glass or stainless steel container) and cook in deionized water containing 0.1% NaCl (by weight) 100h±0.5h(h:hour).

[0034] Step 3: After boiling, the sample should be taken out from Rongduhu and placed in another container (such ...

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Abstract

A test platform for water diffusion test of composite insulator with sheath mandrel, including voltage regulator, test transformer, voltage divider, test bench, infrared imaging camera, infrared remote control switch, upper plate, lower plate, insulation Bracket, digital microammeter, controller, display and residual current action relay; the test transformer is connected with the voltage regulator and the voltage divider. The input terminal is connected, the infrared remote control switch is connected with the high voltage lead output terminal and the upper plate; the lower plate is connected with the digital microammeter, the digital microammeter is connected with the controller, the display is connected with the infrared imaging camera and the controller, and the residual current is activated. The relay is installed in the power supply box. The infrared remote control switch is controlled by the controller to be disconnected, so as to avoid the failure of any insulator to be tested to affect the continuation of the test of other insulators to be tested, so that multiple insulator tests to be tested can be performed simultaneously.

Description

technical field [0001] The invention relates to the field of high-voltage test platforms, in particular to a test platform for water diffusion test of composite insulators with sheathed mandrels. Background technique [0002] Composite insulators have the advantages of light weight, high strength, convenient manufacturing and installation, and resistance to pollution flashover. They are widely used in power transmission lines, which not only prevent large-scale pollution flashover accidents, but also greatly reduce the operation and maintenance of polluted areas. cost, and achieved good operating results. When the outer skin of the composite insulator is damaged or the interface of the mandrel sheath is not firmly bonded, moisture will penetrate from the surface of the sheath to the mandrel, causing partial discharge of the mandrel due to moisture, and the insulation performance of the mandrel will decrease for a long time. The sheath mandrel water diffusion test is a routi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12G01R31/20
CPCG01R31/20G01R31/1245
Inventor 裴云庆田树军吕泽承卓浩泽蒋圣超李泰霖王斌王飞风
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD