A method for identifying corrosion of a secondary circuit of an electric knife switch of a transformer substation

Abstract

The invention discloses a method for identifying corrosion of a secondary circuit of an electric knife switch of a transformer substation. The method comprises the steps of firstly identifying the characteristic objects of a button switch and a change-over switch in a secondary loop in a picture according to color characteristics; secondly segmenting characteristic areas of a button switch and a change-over switch in the picture; thirdly, a method of combining RGB color features and gray features is adopted; identifying the position of a suspected connecting line joint in a picture, and finally eliminating other interferences according to the symmetrical characteristics of an interface in the picture, thereby judging whether the secondary circuit of the electric knife switch of the transformer substation is rusted or not according to the RGB color characteristic value and the gray characteristic value of the interface. According to the electric knife switch secondary circuit picture shot in the transformer substation on site, the technical method of automatic corrosion identification with multiple fused characteristics can identify whether the electric knife switch secondary circuit of the transformer substation is rusted or not more conveniently and rapidly, the workload of manual inspection can be effectively reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a method for identifying corrosion of a secondary circuit of an electric switch of a substation, and belongs to the technical field of substation maintenance. Background technique [0002] The substation site is a key and important place to ensure the safe and stable operation of the power grid. For the secondary circuit of the electric knife switch deployed in the outdoor mechanism box of the open type substation, it is difficult to ensure a constant temperature and humidity in the environment inside the mechanism box. Therefore, there has been a long-term electric switch. The corrosion of metal parts at the secondary circuit interface of the knife switch will seriously affect the safe and stable operation of the equipment. Therefore, it is necessary to regularly inspect the corrosion of the equipment. However, due to the large number of equipment in the substation, if the The method of manual inspection requires a lot of manp...

AI Technical Summary

Problems solved by technology

[0002] The substation site is a key and important place to ensure the safe and stable operation of the power grid. For the secondary circuit of the electric knife switch deployed in the outdoor mechanism box of the open type substation, it is difficult to ensure a constant temperature and humidity in the environment inside the mechanism box. Therefore, there has been a long-term electric switch. The corrosion of metal parts at the secondary circuit interface of the knife switch will seriously affect the safe and stable operation of the equipment. Therefore, it is necessary to regularly inspect the corrosion of the equipment. However, due to the large number of equipment in the substation, if the The method of manual inspection requires a lot of manpower and material resources, and the inspection quality is difficult to guarantee. Therefore, automatic technical means are used to realize the automatic identification of the corrosion of the secondary circuit of the electric knife switch. This technical requirement is one of the fields in this field. One of the important contents, this technical means will be able to effectively improve the efficiency of inspection work, reduce the workload of inspection personnel, and effectively improve the safety and reliability of substation operation

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