I. Asmontas, S. Gudzius, L. Markevicius, A. Morkvėnas, V. Tička
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The investigation of overvoltage transient processes in railway electric power feeding systems
Modern railway signaling and traction control systems are complex automated systems. Digital electronics allow the realization of intelligent and sophisticated control features, which are widely used for railway. When using latest automation, alarm and control systems issues related to the reliability and security emerge due to its low resistance to electromagnetic interference. Before coordinating protection from lightning induced surge or switching overvoltages it is essential to investigate the levels of the overvoltage and work conditions of surge protections after replacing some of the network subsystems with modern electronic devices. This paper analyzes the levels of overvoltage transient processes in the different points of the electrical network by taking into account the assessment of surge protection devices characteristics.
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