Interference-free and stable supply of train control technology Voltage fluctuations and interruptions need to be avoided in rail vehicles. We offer DC/DC converters for the standard voltage levels of various train types. Redundantly switched and decoupled, they provide high availability. They are certified for railway applications in accordance with EN 50155, EN 61373, and EN 45545-2.
Interference-free and stable supply of train control technology
Application
The control technology in high-speed trains is supplied using 110 V DC. Trains that are shorter and have fewer electrical loads are typically supplied with 24 V DC. The cables and connectors cause a voltage drop. When the train is moving, voltage fluctuations or even brief interruptions lasting a few milliseconds can occur. Furthermore, conducted electromagnetic interference is also possible.
Solution
DC/DC converters, including those connected redundantly, for uninterruptible power supply in all train types
DC/DC converters are used in rail vehicles for this. They decouple control components from these influences and provide a stabilized voltage. Phoenix Contact offers devices for converting 110 V DC, 72 V DC, and 24 V DC respectively to 24 V DC. They have a wide input voltage range in accordance with EN 50155 and meet the special requirements of the railway industry.
In the case of rail vehicles, the high-availability power supply of important train systems also plays a major role. DC/DC converters connected in parallel, which each have redundancy modules connected downstream, ensure a high degree of availability. In the event of errors on the output side of the DC/DC converters, they also ensure the necessary decoupling.
Power supplies for rail vehicles
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