What is the primary function of a booster transformer?

The primary function of a booster transformer is to increase the voltage on feeder lines. This is particularly important in electrical distribution, where maintaining adequate voltage over long distances is necessary to minimize losses and ensure reliable power delivery to consumers.

In practical terms, a booster transformer steps up the voltage from a lower level to a higher level. This increase helps to overcome voltage drops that can occur due to the resistance of the transmission lines, especially when distributing electricity to remote areas. By maintaining the voltage at a sufficient level, the transformer enhances the efficiency of the entire electrical system and ensures that the equipment receiving power operates correctly.

In contrast, choices that imply decreasing voltage, converting AC to DC, or regulating current do not align with the specific purpose of a booster transformer. Instead, these functions are typically handled by different types of electrical devices designed for those particular tasks.