In a balanced system: ( MD_total,kVA = 3 \times V_ph \times I_max,ph / 1000 ) or ( \sqrt3 \times V_LL \times I_L ).
| Tool | Application | |------|-------------| | | Load flow & demand analysis with diversity | | DIgSILENT PowerFactory | Time‑series demand profiling | | EasyPower | NEC feeder/panel demand | | LoadPRO (UK) | BS 7671 demand calculation | | Excel with macros | Custom interval averaging from logger data | maximum demand calculation 3 phase
[ \textLoad Factor = \frac\textAverage Load\textMaximum Demand ] Indicates how flat the load profile is. In a balanced system: ( MD_total,kVA = 3
[ \textDiversity Factor = \frac\textSum of individual maximum demands\textMaximum demand of the whole system ] Always ≥ 1. Higher diversity means loads peak at different times → lower overall MD. In a balanced system: ( MD_total