Okay, imagine you have a toy car and you want to make it move. But how does it move without you pushing it? Well, you need batteries or electricity to make it go. Similarly, bigger vehicles like trains need electricity to move too!
Now, trains get their electricity from overhead wires that run above the tracks. This is called ‘traction power’. But, when the power from the overhead wires reaches the train, it is often in a form that the train can't use. So, we need a machine that converts this electricity into a form that the train can use to start moving. This machine is called a traction current converter plant.
The converter plant is big, almost like a big factory. It sits beside the tracks and is connected to the overhead wires by big cables. The plant then reads and converts the electricity from the wires and sends it to the train in a form it can use. It is kinda like a transformer that changes the electricity from one form to another.
So, the train can move when it gets the right kind of electricity in the right amount. And the traction current converter plant makes sure that it gets just what it needs to go smoothly. That's how it works!