Noise lowering treatment method for corona audible noise of high-voltage power transmission line

Abstract

The invention provides a noise lowering treatment method for a corona audible noise of a high-voltage power transmission line. The noise lowering treatment method for the corona audible noise of the high-voltage power transmission line comprises the following steps that S1, the surface of the high-voltage power transmission line is cleaned; S2, the surface of the high-voltage power transmission line is evenly coated with hydrophobic paint. By the adoption of the noise lowering treatment method for the corona audible noise of the high-voltage power transmission line, accumulation of water dropsand dirt on the surface of the power transmission line can be effectively reduced, so that the electric field distortion on the surface of a wire is reduced, so that the corona starting voltage of the high-voltage power transmission line is improved, and then the corona audible noise of the high-voltage power transmission line during severe weather can be lowered.

Description

technical field [0001] The invention relates to a noise reduction method, in particular to a noise reduction processing method for corona audible noise of a high-voltage transmission line. Background technique [0002] With the growth of power transmission demand and the tightness of line corridors, large-scale construction of EHV and UHV transmission lines has taken place around the world. EHV and UHV transmission lines are inevitably exposed to harsh weather such as rain, fog, and condensation. In these weathers, water droplets will adhere to the surface of the conductor, which will seriously distort the space electric field around the conductor, and the conductor will generate corona, resulting in the corona of the transmission line. The audible noise has increased significantly, exceeding the standard limit of environmental noise, which has brought severe challenges to the electromagnetic environment of transmission lines; at present, there is no effective method to deal...

AI Technical Summary

Problems solved by technology

EHV and UHV transmission lines are inevitably exposed to harsh weather such as rain, fog, and condensation. In these weathers, water droplets will adhere to the surface of the conductor, which will seriously distort the space electric field around the conductor, and the conductor will generate corona, resulting in the corona of the transmission line. The audible noise has increased significantly, exceeding the standard limit of environmental noise, which has brought severe challenges to the electromagnetic environment of transmission lines; at present, there is no effective method to deal with the noise of corona audible noise of high-voltage transmission lines

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