A three-phase circuit requires how many conductors for balanced transmission?

In a three-phase circuit designed for balanced transmission, three conductors are required, each carrying an equal portion of the total current. This setup allows for efficient power distribution and utilization, as each phase operates 120 degrees out of phase with the others. This design not only ensures that the load on the system is symmetrical but also contributes to stable voltage levels across the phases.

Using three conductors enables the circuit to maintain balance, which is crucial for minimizing losses and enhancing performance in three-phase systems commonly found in industrial and commercial applications. While additional conductors may be used for grounding or neutral purposes, the fundamental requirement for balanced three-phase transmission remains three conductors.