What is the primary function of a distribution transformer?

The primary function of a distribution transformer is to reduce the voltage of the primary circuit to a lower utilization voltage suitable for residential and commercial use. This is essential because high voltages are used for efficient power transmission over long distances, but once the electricity reaches its destination, it must be transformed to lower voltages that are safe and usable for end consumers.

Distribution transformers are strategically placed within power distribution networks to ensure that the voltage delivered to homes and businesses is at an appropriate level, typically around 120/240 volts. This process is crucial for maintaining safety and ensuring that electrical devices function properly without the risk of damage that could occur from high-voltage electricity.

In contrast, converting AC to DC is characteristic of rectifiers rather than transformers, increasing voltage for transmission is a function related to step-up transformers typically used in generation stations, and storing electrical energy is generally not a function of transformers but rather of batteries or other energy storage systems.