Electrical Load Schedule
Combine connected loads and demand factors into a transparent preliminary maximum-demand calculation with system current.
Calculation method
Each schedule row contributes connected active load = quantity × unit kW. The demand factor is applied row by row. Demand apparent power is summed as demand kW / PF, so loads with different power factors remain visible instead of being collapsed into one assumed PF. System current is then calculated from total demand kVA using the selected single- or three-phase voltage relationship.
How to use the result
Use this tool to build an early electrical load list, compare connected versus diversified demand and create a transparent basis for feeder, transformer or generator studies. Keep load descriptions meaningful and use project-specific demand factors rather than generic values where the actual operational profile is known.
Method guides: read Connected Load vs Demand Load for the row-by-row calculation method and Demand Factor vs Diversity Factor before combining subgroup assumptions.
Engineering limits
Coincidence, diversity and demand are project assumptions, not universal constants. The calculator does not model time series, harmonic current, phase imbalance, starting sequences, future expansion policy or standby/essential-load categories. Those items should be added explicitly in the project load schedule before equipment sizing is released.
Before design release
Record the source and revision of every project input used in this calculation, then compare the result with the next practical equipment or conductor size rather than treating the numerical minimum as an automatic selection. Check tolerances, environmental derating, duty cycle, protection settings, installation constraints and manufacturer limits that are outside the simplified model. Where the result feeds another study, carry the same voltage, current, power-factor, fault-level and timing assumptions forward so the design chain remains traceable. Save the governing case and the reason for the final engineering choice. ElectroDesigner is intended to make the calculation path visible; it does not replace the project engineer’s verification, the adopted standard or tested manufacturer data.