Method for monitoring hydrophobic property of organic external insulation material in online manner

Abstract

The invention discloses a method for monitoring the hydrophobic property of an organic external insulation material in an online manner. The method comprises the following steps: (1) equipping a spraying device, a video recording device, a communication and control device and a data processing device; (2) receiving an action signal and controlling mechanical action; (3) controlling the distance and the angle; (4) spraying atomized clean water and sprinkling the clean water to the organic external insulation material; (5) recording in an image and video manner; (6) transmitting the image and the video to the data processing device; (7) carrying out analog computation on the static contact angle of water drops; (8) analyzing the water drop distributing condition and evaluating the hydrophobic property of the organic external insulation material; and (9) sending an action command. According to the method, the hydrophobic property of the organic external insulation material of running equipment or a power transmission line can be monitored in an online manner, the change condition of the hydrophobic property can be mastered and pollution flashover accidents can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of electric equipment monitoring, and in particular relates to a method for on-line monitoring of the hydrophobic performance of an organic external insulating material. Background technique [0002] It is well known that the use of organic external insulating materials can significantly increase the pollution flashover voltage of insulators and reduce the risk of pollution flashover of insulators in heavily polluted areas. The organic external insulation materials prevent pollution flashover accidents mainly by utilizing their hydrophobic properties. If its water repellency fails, it could signal the end of the material's life. However, when the surface of the organic external insulating material is seriously polluted, it will lead to a decrease in its hydrophobic performance and may cause a flashover accident. Under normal circumstances, due to the influence of environmental factors such as temperature, ...

AI Technical Summary

Problems solved by technology

However, when the surface of the organic external insulating material is seriously polluted, it will lead to a decrease in its hydrophobic performance and may cause a flashover accident.

Under normal circumstances, due to the influence of environmental factors such as temperature, ultraviolet rays, and electromagnetic fields, organic external insulating materials will inevitably age, and aging phenomena such as peeling, cracking, powdering, and falling off will occur. loss, so that it evolves into a serious potential safety hazard in power grid operation

At present, the on-line monitoring of insulators mainly focuses on the monitoring of leakage current and pollution amount, while the monitoring of hydrophobicity of organic external insulating materials only stays on manual measurement when the equipment stops running or the line is powered off.