Description of the control system of the 22 WE ELF electric multiple unit. Results of tests on interference generated to the traction network by the 22 WE ELF electric multiple unit.1. INTRODUCTION
Based on our own experience and literature data, it can be concluded that the level of interference generated by traction vehicles increases with their power. Modern traction vehicles, especially those designed for speeds of 160 km/h and more, have power ratings exceeding 4 MVA. An example of such a vehicle is the 22 WE ELF electric multiple unit.
The use of such vehicles is associated with an increase in the level of interference generated to the traction network. At the same time, it is known that railway traffic control devices remain the same when using this type of vehicle – their immunity to interference does not change. Therefore, the problem of suppressing interference must be addressed on the locomotive by using appropriate filters, which reduce the interference level to that required by the Railway Authority (e.g., PKP).
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Source: Logistyka Magazine