The impact of the high voltage power lines coupling on the railway signaling system

Abstract

Electromagnetic Compatibility (EMC) disturbance produced by power transmission lines (TL) near the railway installation can generate electromagnetic coupling between the high voltage power line and the signalization cables. In this paper, the voltage induced is analyzed in the signaling system cables located along the high-speed line due to the proximity of an extra high voltage power line. An approximate and Dubanton method have been used in order to have a correct result of the mutual inductance. The proposed technique is compared with the sensitivity threshold of the railway devices in order to check if the presence near high voltage lines will not interfere with the normal operation of the railway equipment. The performance of the Electromagnetic radiation is presented through simulation results.