Single-phase power is typically provided by how many transformers in a commercial application?

Single-phase power is typically provided by how many transformers in a commercial application?

• A. One
• B. Two
• C. Three
• D. Four

Answer: (A)

In a commercial application, single-phase power is typically provided by one transformer. This transformer steps down the voltage from the high-voltage transmission lines to a usable level for commercial equipment and lighting. Single-phase power systems are commonly used for smaller loads and are ideal for applications like lighting and small machinery that do not require three-phase power. Using a single transformer simplifies the installation and reduces costs compared to multiple transformers. In many scenarios, such as when powering smaller buildings or specific equipment loads, a single transformer effectively delivers the required voltage and current, making it the standard approach for providing single-phase power in commercial settings.

In a commercial application, single-phase power is typically provided by one transformer. This transformer steps down the voltage from the high-voltage transmission lines to a usable level for commercial equipment and lighting. Single-phase power systems are commonly used for smaller loads and are ideal for applications like lighting and small machinery that do not require three-phase power.

Using a single transformer simplifies the installation and reduces costs compared to multiple transformers. In many scenarios, such as when powering smaller buildings or specific equipment loads, a single transformer effectively delivers the required voltage and current, making it the standard approach for providing single-phase power in commercial settings.