The actual load measured simultaneously across all feeders. MD calculation for supply sizing uses coincident demand.
Suppose we have a 3-phase system with a line voltage of 400V, and we measure a line current of 100A. Assuming a power factor of 0.8: maximum demand calculation 3 phase
The maximum demand for a 3-phase system can be calculated using the following formula: The actual load measured simultaneously across all feeders
Motor input: ( P_in = 22 / 0.92 = 23.91 , kW ) Welder active power: ( 30 \times 0.6 = 18 , kW ) (but welder load is kVA‑based; for demand, we use kVA × DF factor? Careful: treat welder as 30 kVA × duty cycle 0.3 = 9 kVA average during operation; then apply DF 0.5 for peak coincidence → 4.5 kVA equivalent. This is approximate – better to use energy integration.) Assuming a power factor of 0