What does the power equation for 3-phase power include?

The power equation for three-phase power is correctly captured by including the square root of 3, voltage, and current. In three-phase systems, the total power can be calculated using the formula:

Total Power (P) = √3 × V × I × Power Factor

Where V represents the line voltage, I corresponds to the line current, and the square root of 3 is a factor that accounts for the three-phase nature of the system. This formulation is essential for calculating the total active power delivered in a three-phase electrical system, as it effectively combines the individual phase contributions into a comprehensive total.

Understanding this equation is crucial for accurately analyzing power systems, especially when working with three-phase loads, as it ensures that the calculations reflect the combined effects of the three separate currents and voltages in the system. The inclusion of the square root of 3 specifically arises from the geometry and properties of three-phase power systems, making it a distinct and necessary component for accurate power assessment.