A phase converter is used to convert what type of power?

A phase converter's primary function is to transform single-phase electrical power into three-phase power. This is particularly important in settings where three-phase machinery is required but only single-phase service is available. Many industrial and commercial operations rely on three-phase power due to its efficiency in powering heavy equipment and motors.

By using a phase converter, users can effectively run three-phase equipment in environments where only single-phase service is supplied, thereby expanding the functionality of existing electrical systems. Additionally, three-phase power systems are often more stable and less susceptible to voltage drops, making them advantageous for powering large loads.

In contrast, other options propose different conversions that do not align with the operation of a phase converter. For instance, converting DC to AC or vice versa pertains to inverters and rectifiers, which serve entirely different purposes. Similarly, transforming three-phase power to single-phase is not the intended use of a phase converter. Thus, the correct identification of a phase converter's role in transforming single-phase power to three-phase power is essential for understanding its application in electrical systems.