Impedance Parameter Analysis and Electromagnetic Influence Modeling of Three Phase Cable Adjacent to Metal Pipeline

Abstract

When the high-voltage AC cable is laid adjacent to metal pipeline, the electromagnetic influence may be generated which is related to the safe and stable operation of metal pipeline. In this paper, an electromagnetic model of three-phase cable and metal pipeline laying nearby is set up. Based on the simplified calculation formula of earth loop impedance, the impedance parameters of three-phase cable and metal pipeline are calculated. The difference between the impedances under different layouts is compared. Finally, the influence of relevant factors on impedance parameters is analyzed.