Section Article

Analysing the Capacitive Coupling in Conductors Adjacent to AC Power Lines using a Finite Element Method
Author(s): Jagjeet Khurana

Abstract
Capacitive coupling in conductors located adjacent to alternating-current (AC) power lines represents a critical electromagnetic interaction that significantly affects power system performance signal integrity and the operational reliability of nearby electrical and communication infrastructures. As modern societies expand their electrical networks the coexistence of multiple conductive elements—communication cables metallic pipelines auxiliary grounding wires structural reinforcements and monitoring sensors—has become common near high-voltage AC power transmission lines. The resulting electromagnetic interactions particularly capacitive coupling can induce unwanted voltages interference currents insulation stress and dielectric heating. These effects pose safety risks degrade system performance and undermine the functional integrity of adjacent infrastructure. This study presents a comprehensive finite element method (FEM)-based analysis for evaluating the capacitive coupling characteristics in conductors situated near AC power lines emphasising electric-field distribution capacitive reactance dielectric behaviour geometrical influences and environmental factors.