In a three-phase system, what happens to the current flow compared to residential single-phase systems?

In a three-phase system, the current flow is reduced compared to residential single-phase systems primarily due to its configuration and the way power is delivered. In a three-phase system, power is distributed across three conductors, allowing for a more balanced load. This ensures that the overall current flowing through each individual conductor is lower while still providing the same total power output as a single-phase system.

In essence, the three-phase system operates more efficiently by utilizing multiple phases to carry the electrical load, which reduces the total current needed in each phase to achieve the same power transfer. This efficient use of power minimizes losses and enhances the capability to drive larger loads without requiring excessive current. Therefore, the reduction in current flow when transitioning from a single-phase system to a three-phase system is an essential advantage and is a key aspect of why three-phase systems are preferred in industrial applications.