Interaction of Structural Elements in the Overhead Transmission Power Line

Abstract

The analysis of the changes of tensile forces in conductors and earth wires is performed during their breakage and impact on the towers of overhead power line with a voltage of 330 kV. Based on the results, a mathematical model of a unified cable-stayed rod system consisting of steel towers, conductors and earth wires and insulating elements has been compiled. The system of equations of the model is solved iteratively using the MS Excel spreadsheet processor for various breakage cases. The dependences of tensile forces in conductors and earth wires during their breakage are presented, as well as the forces which correspond to an acting regime on towers in a linear circuit, taking into account the supporting effect of neighboring towers.