Which type of transformer is designed to lower voltage levels?

A step-down transformer is specifically engineered to reduce voltage levels while increasing current. In electrical power systems, transformers play a pivotal role in ensuring that the voltage is appropriately managed for transmission and end-user requirements. By stepping down the voltage, these transformers enable the safe distribution of electricity for residential or commercial use, where lower voltage levels are necessary to operate appliances and devices efficiently.

For example, if the incoming voltage from a power line is too high for a household's usage, a step-down transformer will lower this voltage to a safer level, making it suitable for appliances like refrigerators, televisions, and lighting systems. The operation of a step-down transformer relies on the number of windings on its primary coil being greater than that on the secondary coil, which inherently allows for the drop in voltage as electrical energy is transmitted.