The 330 kV Early Line and the Sundu Line of Gansu Power Grid are located in the mountainous area of ​​southern Anhui. Here, the two mountain ranges of the West Qinling and the Lushan Mountain extend from the east to the west to the whole of the southern part of the country, with complex terrain between the mountains and the canyons, basins and plains. The relative altitude difference is as high as 1000 meters or more. The winter temperature is lower than other regions, and the ice grid of the power grid is easy to form.
UAV fire-breathing device guarantees safe operation of power grid during the Spring Festival
The various guarantees during the Spring Festival are not sloppy. On the 22nd, the reporter learned from the State Grid Gansu Electric Power Company maintenance company that in order to protect the safe operation of power transmission lines and substations of 220 kV and above power grids in Gansu during the Spring Festival, the company invested in self-developed UHV line drones to clear fire barriers. The device has a hovering accuracy of less than 1 m, which greatly satisfies the precise position requirements of the line clearing process.
According to Niu Xiaobing, general manager of the Gansu Maintenance Company of the State Grid and deputy secretary of the Party Committee, during the process of clearing the UHV line, the operation and maintenance personnel used the eight-rotor UAV that can hover and mount the fire-breathing device to fly to the corresponding height. Close to the high-voltage line, start the fire-breathing device after entering the fixed-point hovering state, and quickly remove the garbage on the transmission line. While eliminating foreign matter, it will not cause damage to the line. The entire barrier-free work was completed quickly in a matter of minutes, replacing the workload that had previously required several hours of labor.
The 330 kV Early Line and the Sundu Line of Gansu Power Grid are located in the mountainous area of ​​southern Anhui. Here, the two mountain ranges of the West Qinling and the Lushan Mountain extend from the east to the west to the whole of the southern part of the country, with complex terrain between the mountains and the canyons, basins and plains. The relative altitude difference is as high as 1000 meters or more. The winter temperature is lower than other regions, and the ice grid of the power grid is easy to form. "In this case, we installed a total of 16 transmission line anti-icing monitoring systems, including 6 online monitoring devices for transmission line anti-icing images, 10 online monitoring systems for transmission lines, and 12 micro-meteorological devices, covering the southern part of Anhui Province. All the key ice-covered sections. In the rain and snow weather warning and low temperature, the artificial key monitoring is carried out 3 times a day, and the inspection of the ice-covered section is reported every morning and evening to realize the real-time control of the on-site ice-covered situation. The situation, power grid ice monitoring, remote ice monitoring, DC ice melting and other 'black technology' devices, will accurately predict and quickly de-ice, to ensure the safe and stable operation of the grid." State Grid Gansu Maintenance Company Security Director, Operations Maintenance Department Director Wang Shengli said.
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