If you are working on your electric model trains, you will definitely need a model train transformer. Without the transformer, your trains will not run. Whether you’re using a train kit or you’re buying the essentials item by item, you will have to know how the transformer works or else you can’t make the train run.
The transformer will just be plugged into the 220 volt socket. From the socket, the power is converted into 12-24 volts and this will depend on the system that you’re using. The small locomotives can’t handle the 220 volts and so you will need a transformer to change the current into a safe level. This is also very important to prevent electric shocks when working on the layout.
In most layouts, you can find two cables that come out of the transformer. The cable is connected to the tracks and to the metal wheels of the locomotives that touch the tracks. It is the train itself that completes the connection. This is also applicable with the 3 rail systems but the main power runs on the center rail and the current is passed to the 2 outside rails.
The transformer is also used to power accessories like signals, crossing gates, electrical coupling, etc. If you have many accessories, one transformer may not be enough. A big layout that consists of blocks will also have separate transformers, so for every block you will have one transformer. Before you start working on the wirings and the transformer, you should increase your knowledge about how things work.
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