Which transformer type is typical for providing single-phase power in commercial settings?

In commercial settings, the use of a transformer designed to provide single-phase power is essential, and the most straightforward solution typically involves utilizing one transformer that meets specific requirements. Single-phase transformers convert the power supply efficiently and accommodate the load demands of various commercial applications.

A single-phase transformer can step up or step down voltage levels as needed, depending on the particular requirement of the facility. The term "one transformer" implies that a single unit is often sufficient to handle the load without the complexity that comes with multiple transformers. This simplicity not only reduces installation costs but also facilitates easier maintenance maneuverability.

Step-up and step-down transformers refer to the transformation of voltage levels but do not specifically indicate a singular approach for single-phase power delivery. While they serve vital roles in power systems, especially where voltage alterations are necessary, the emphasis on using one transformer for straightforward single-phase applications streamlines the process.

Additionally, configurations involving three transformers are more common in three-phase power systems intended for larger loads and higher efficiency, which is beyond the context of typical commercial single-phase needs. The answer accurately reflects the common practice in most commercial power setups where a single-phase service is required.