The behavior of the traction power supply system of AC 25 kV 50 Hz during operation

Abstract

This paper studies the AC 25 kV 50 Hz traction power supply system, which is used, in particular, in the Czech Republic. Nowadays, railway operation is very complicated and sophisticated, both from the viewpoint of railway infrastructure and means of transport. New technologies, devices and standards bring new problems for rail operation, including coupling to surrounding elements in the traction power supply system, transient effects during the recuperation mode of traction vehicles, the influence of neighboring track contact lines when disconnecting contact lines, etc. The main findings of these problems are detailed in this paper.