Method for detecting high optical spectrum of composite insulator

Abstract

The invention provides a method for detecting a high optical spectrum of a composite insulator. The method comprises the following steps of: 1) adopting a hyperspectral imager to perform imaging on the composite insulator, and obtaining a high optical spectrum image of the composite insulator; 2) carrying out pretreatment on the high optical spectrum image of the composite insulator, wherein the pretreatment comprises geometric correction and radiometric correction, and obtaining precise spectral information; and 3) using a special analysis platform to carry out treatment analysis, determining a running state of the composite insulator, judging result output / display, and judging whether the composite insulator needs to be replaced. The method for detecting the high optical spectrum of the composite insulator provided by the invention can carry out non-contacting type detection on the composite insulator, and a worker does not need to climb a tower; and the site operation required time is short, when the high hyperspectral imager obtains data, the information of multiple composite insulators is obtained at the same time, thereby being convenient for late stage treatment analysis on the multiple composite insulators simultaneously, achieving the purpose of batch detection, and meeting the requirements of composite insulator state detection of China.

Description

[0001] technical field [0002] The invention relates to a detection method of a composite insulator, which belongs to the field of operation state maintenance of power transmission and transformation equipment, and in particular relates to a hyperspectral detection method of a composite insulator, which can be used to detect the operation state of a composite insulator on-site. [0003] Background technique [0004] In the 1980s, Chinese experts and scholars started the research and development of composite insulators on the basis of absorbing foreign experience, and the mid-term samples were put into trial operation in the late 1980s. In the early 1990s, pollution flashover accidents occurred one after another in various places. Due to their good pollution resistance, composite insulators were put into grid-hung use. By the end of 1994, there were 50,000 composite insulators running on the grid. Since then, the number of composite insulators connected to the grid has inc...

AI Technical Summary

Problems solved by technology

However, the above-mentioned patents do not involve detection methods for on-site charged detection of aging, hydrophobicity, cracking and deterioration of composite insulators, etc.

[0008] To sum up, most of the existing detection methods for composite insulators have single functions, and there are many conditions when they are used, so it is difficult to detect the deteriorated composite insulators in the running line.

At present, the detection of composite insulators at home and abroad is still in the research and development stage, there is no mature method, and it is necessary to study the detection methods suitable for grid-hung operation composite insulators

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