Influence (electrical engineering)
In electrical engineering , influencing is understood to be the changing of magnetic or electrical fields by other external fields of the same type. Influence can occur intentionally or unintentionally. Preventing unwanted influences is a key aspect of electromagnetic compatibility .
Influence in the railway sector
In the case of railways , unwanted influences often occur on electrified lines. With high currents, approximately by the driving current are fed to the overhead line and the rails or by three-phase systems of the vehicles very strong electric and magnetic fields are generated, the stresses in other electrical systems, such as telecommunications or the control and safety systems produce. The influence can falsify signals, for example through unintentionally triggered relays . For this reason, interference must be prevented, for example by using cables with a reduction factor and the right oneEarth relevant systems.
Individual evidence
- ↑ Lothar Fendrich, Wolfgang Fengler (ed.): Manual Railway Infrastructure . 2nd Edition. Springer-Verlag, Berlin, Heidelberg 2013, ISBN 978-3-642-30020-2 , pp. 881-895 .