Electromagnetic Compatibility Analysis of Power Line and Railway Sharing the Same Right-of-Way Corridor: A Practical Case Study

A thorough analysis of the electromagnetic compatibility of power lines and neighboring railway is presented. The railway is located close to the transmission line that consists of a combination of overhead and underground conductors and cables. Electromagnetic interference caused by high voltage power lines can endanger the proper operation of the signal and protection systems of the railways and threaten the safety of the personnel under both load and fault conditions. The performance of the system, including rail GPR (ground potential rise), rail-to-rail voltages and touch and step voltages are evaluated accurately taking into account the inductive, capacitive and conductive components. Numerical are presented and discussed.