User:Azmol86/sandbox

What's transformer ? Transformer is a electrostatic device, it can transfer electric power primary winding to secondary winding, without change electric power & frequency in way of electromagnetic induction. It's efficiency always greater than from other instrument. Because it's has no moving portion / parts. So here is absent wind and friction loss.

There are two kinds of transformer consider phase- 1. Single phase transformer 2. Three phase transformer