What is the purpose of using a step up transformer?

The purpose of using a step-up transformer is to increase voltage from a lower level to a higher level while reducing current in the process. This type of transformer is essential in the transmission of electrical energy over long distances. By stepping up the voltage, the transformer helps to minimize energy losses that occur due to resistance in the conductors, as higher voltage allows for lower current flow for the same amount of power transmitted.

Transformers operate on the principle of electromagnetic induction, where the ratio of the number of turns of wire on the primary coil to the number of turns on the secondary coil determines whether the transformer steps up or steps down voltage. In the case of a step-up transformer, there are more turns in the secondary coil than in the primary coil, resulting in an increase in voltage.

In summary, the main objective of a step-up transformer is to facilitate more efficient electrical power transmission by increasing voltage, which plays a crucial role in modern electrical distribution systems.