Accurate electrical load estimation tool. Design safe power distribution systems today.
The core formula to determine three-phase alternating current ($I$) in amperes from apparent power ($S$) in kilovolt-amperes is:
$$I = \frac{S \times 1000}{\sqrt{3} \times V_{L-L}}$$
Where $V_{L-L}$ represents the line-to-line voltage, and adjustments are made dynamically for demand and diversity factors.
Calculating accurate current demand is essential for designing safe, reliable, and cost-effective electrical distribution networks in residential, commercial, and industrial facilities. Improper sizing can lead to catastrophic equipment failures, excessive voltage drops, and severe safety hazards.
In alternating current systems, the power factor bridges the gap between real working power and total apparent power drawn from the utility source. Incorporating demand and diversity factors ensures that installations are neither dangerously undersized nor wastefully over-budgeted.
The factor square root of three accounts for the phase displacement angle between lines in a balanced three-phase system configuration.
Diversity factor reduces the total theoretical sum of peak loads based on the probability that not all loads operate simultaneously.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.