Discharging strength conversion method based on ultraviolet imaging method

A technology of ultraviolet imaging and discharge intensity, applied in the field of electric power, can solve the problem that the characteristics of ultraviolet spectrum have not been systematically and comprehensively studied.

Inactive Publication Date: 2014-04-23
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY
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Problems solved by technology

However, at present, the ultraviolet imager focuses on the actual detection application in my country's power system. There has not been systematic and comprehensive research on the causes of equipment discharge, whether the ultraviolet imaging method can quantify the discharge, and the characteristics of the ultraviolet spectrum of the discharge under different defects.

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  • Discharging strength conversion method based on ultraviolet imaging method
  • Discharging strength conversion method based on ultraviolet imaging method
  • Discharging strength conversion method based on ultraviolet imaging method

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Embodiment Construction

[0039] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples. Those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms are also within the scope of the claims listed in this application.

[0040] see figure 1 As shown, the discharge intensity conversion method based on the ultraviolet imaging method of the present invention adopts a system for carrying out the ultraviolet detection test, including an ultraviolet detection instrument, a power frequency test power supply, a discharge model rod electrode, a plate electrode and a test instrument power supply.

[0041] Through the analysis and research of typical test models, the typical discharge models—rod electrode and plate electrode are determined, the material selection, size and struc...

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Abstract

The invention provides a discharging strength conversion method based on an ultraviolet imaging method. The invention provides a corresponding conversion method by designing an ultraviolet imaging detection discharging model, analyzing videos and processing a digital image, comprehensively considering a testing distance, an instrument gain and a relation between the discharging strength and ultraviolet imaging pattern quantized data, and analyzing all parameters and data to obtain a corresponding curve. The discharging strength conversion method can effectively guide the sensitivity and the accuracy of a typical defect ultraviolet imaging detection analysis of regional power grid electric transmission and transformation equipment, and provides a reliable testing basis for the discharging strength of the equipment.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a discharge intensity conversion method based on an ultraviolet imaging method. Background technique [0002] Most of the electrical equipment of ultra-high voltage transmission lines and substations are in the atmospheric environment. Under the action of long-term electrical, thermal and mechanical stress, insulation degradation, aging and even damage will inevitably occur. Under certain conditions, the surface of the equipment will appear Discharge phenomenon, but this kind of discharge is generally manifested as weak discharge, and the wavelength of the radiated light wave is mainly distributed in the ultraviolet band (200-400nm), which is difficult for human eyes to directly observe. Conventional detection methods, such as acoustic wave detection and ultra-high frequency methods, are difficult to accurately locate the discharge point. [0003] Using ultrav...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 廖鹏冯超马丽山包正红康钧张海宁朱爱珍张仲秋周瑜谢艳丽李玉海邓大勇王鹏飞何艳娇王生杰谢彭盛王志惠
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY
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