The impact of contamination on audible noise in AC transmission lines

Abstract

Abstract The objective of this study is to investigate the impact of accumulated pollutants on the surface of a 1000 kV AC transmission line in a specific location in China on its audible noise generation. The line with diatomaceous earth, kaolin, and other pollutants attached to it is modeled by using finite element software, and the study results indicate that the conductivity of the material plays a significant role in influencing the audible noise. In addition, diatomaceous earth has the least effect on the amplitude and lateral attenuation of audible noise, and sodium chloride and carbon powder have the greatest effect. The research in this paper can be used for the reason that dirt particles affect the magnitude of audible noise and these findings offer valuable insights for the management of audible noise.