power transformers are essential devices that transfer electrical energy from one circuit to another without changing the frequency. They are widely used in power generation, transmission, distribution and industrial applications. power transformers can vary in size, voltage, current and efficiency depending on the specific needs of the customers. Choosing the right power transformer can be a challenging task, as there are many factors to consider. In this article, we will discuss what are the uses of power transformers, what are the types of power transformers and how to choose a power transformer.