What electrical system operates with three-phase power?

Three-phase power is a method of alternating current (AC) electric power generation, transmission, and distribution that is widely used in industrial and commercial applications. It provides a constant delivery of power and is more efficient than single-phase systems, particularly for large motors and heavy equipment that require high starting and running power.

Industrial power systems are typically designed to support machinery, equipment, and processes that demand high amounts of electricity, which is why three-phase systems are commonly employed. This configuration allows for better load balancing and can deliver more power through smaller conductors compared to single-phase systems. Additionally, many industrial applications rely on three-phase motors, which are more efficient and have better performance characteristics than their single-phase counterparts.

While commercial power systems also utilize three-phase power, the context of the question is specific to the most common application of three-phase power. Residential lighting and solar power systems generally do not operate on three-phase power; residential systems usually use single-phase power, and solar power setups can be configured in various ways that do not inherently require three-phase systems.