Okay kiddo, do you know what electricity is? It's a type of energy that can power things like lights, computers, and even trains.
But how does the electricity get to where it needs to go? That's where a traction current pylon comes in.
You know those big metal towers you might see in fields or along the highway? Those are called pylons. The ones for traction current are a little different, though. They're used specifically to carry electricity to power trains.
The way it works is there's a big cable that runs from the power station (where the electricity is made) to the pylon. The pylon has a platform on top where the cable can rest. It's important that the cable is held high up off the ground so no one accidentally touches it or gets hurt.
Then, there's another cable that goes from the pylon down to the train tracks. This is called the "catenary" and it's what the train's pantograph (kind of like a big, fancy party hat on the top of the train) connects to in order to get the electricity it needs to move.
So, to sum it up: a traction current pylon is a big metal tower that helps carry electricity to power trains.