Method for detecting composite insulator based on multi-spectrum

A composite insulator and detection method technology, applied in the field of composite insulator detection based on multi-spectrum, can solve problems such as inability to effectively discover and judge composite insulators, and achieve the effect of convenient inspection

Inactive Publication Date: 2015-11-11
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Application Information

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Problems solved by technology

Existing detection methods for porcelain and glass insulators are limited to detecting the zero (low) value of porcelain glass insulators, and cannot effectively detect and judge problems in composite insulators during

Method used

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  • Method for detecting composite insulator based on multi-spectrum
  • Method for detecting composite insulator based on multi-spectrum
  • Method for detecting composite insulator based on multi-spectrum

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Embodiment Construction

[0027] A method for detecting composite insulators based on multi-spectrum, specifically comprising:

[0028] 1) Under suitable external conditions, select suitable visible light, infrared and ultraviolet detection equipment.

[0029] 2) Under the same operating conditions, carry out visible light, infrared and ultraviolet detection on the key detection parts of the same composite insulator,

[0030] 3) The visible light image, infrared image and ultraviolet image are compared horizontally, and the operation status of the inspected composite insulator is comprehensively compared and analyzed.

[0031] 4) Under the same operating conditions, compare different composite insulators or different parts of the same composite insulator on the same base tower of the same line. Longitudinal comparison of visible light images, infrared images and ultraviolet images, comparing the number of photons or ultraviolet images generated by corona activities in corresponding parts, using the ab...

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Abstract

The invention discloses a method for detecting a composite insulator based on multi-spectrum. The method comprises: selecting a detection device; under a same operation condition, performing visible light detection, infrared detection, and UV detection of the same composite insulator by using the detection device to obtain detection images of the composite insulator; performing comparison of a partial discharge lighting spot of the visible light image, a partial hot spot of the infrared image, and an electric corona spot of the UV image; performing comparison of visual light images, infrared images, and UV images of different composite insulators of the same pole tower of the same line under the same operation condition; establishing a multi-spectrum detection database according to each composite insulator; and performing data comparison and finding out existing data difference according to detection data in a certain period. According to the method, visual light detection, infrared detection, and UV detection can be organically combined; advantages are complemented; and electrified detection of the insulator is easy to perform. A defect of the composite insulator can be discovered in time, so that large-area tour-inspection is convenient to develop.

Description

technical field [0001] The invention relates to a detection method, in particular to a composite insulator detection method based on multi-spectrum, and belongs to the technical field of power insulator detection. Background technique [0002] As an important part of transmission lines, insulators play an important role in ensuring the safe operation of power systems. Composite insulators not only have hydrophobic performance, hydrophobic migration performance, small equivalent diameter and good anti-pollution flashover performance, but also have the characteristics of high strength, light weight, unbreakable, convenient transportation, easy operation and maintenance, etc. It is widely used in transmission lines, and new AC and DC projects with a voltage level of 500kV and above have also begun to be used in batches or even on the whole line. Its hanging line operation effect is good, and it has become an effective method for the external insulation of power transmission and...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 刘辉沈庆河苏建军姚金霞胡晓黎刘嵘段玉兵张皓赵富强许光可张围围许冬冬
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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