ELI5: Explain Like I'm 5

Polyphase system

Polyphase system is like making a cake with more than one mixing bowl. So, in normal when we bake a cake, we use only one mixing bowl, and mix all the ingredients together. But if we wanted to make a big cake with a lot of batter, one mixing bowl would not be enough. Polyphase system is the same thing, but instead of mixing bowls, electric power is distributed through more than one wire.

So, polyphase system is a way of distributing electric power using multiple wires. This system is used for larger electrical loads, to make sure the power is distributed evenly and efficiently. In such a system, there are typically two, three, or more wires that carry electric power at the same time. These wires are known as phases.

Just like with baking cakes, using multiple mixing bowls can help us to make sure our cake turns out delicious and beautiful, polyphase system helps to make sure electric power distribution is efficient and smooth.