Prediction of Egyptian 500-kV Overhead Transmission Line’s Radio Interference by Using the Excitation Function

Abstract

Abstract This article presents applications of the excitation function on the prediction of the radio interference (RI) of overhead transmission line (OHTL), due to corona effect. These applications are done under different weather conditions such as heavy rain, wet conductor, and fair weather.Also, this article investigates the factors influencing the RI level, namely, the height of conductors, phase spacing, number of subconductors in the bundle, diameter of subconductor, and subconductor spacing in the bundle.In this article, it is shown that the RI level is dependent on the weather conditions. Where the RI level under heavy rain has the maximum level, hence, it should be considered as a basic level of any OHTL.