Maximum Demand Calculation Official

[ MD = \left( \sum_i=1^n (Load_i \times Demand\ Factor_i) \right) \times Diversity\ Factor ]

| Step | Action | Example Value | | :--- | :--- | :--- | | 1 | List all loads with kW ratings | Motor: 75 kW, Lights: 30 kW | | 2 | Apply demand factor per load type | Motor: 0.9 (67.5), Lights: 0.8 (24) | | 3 | Sum to get "Total Diversified Load" | 91.5 kW | | 4 | Estimate diversity factor between major groups | 1.15 | | 5 | = Step 3 / Step 4 | 91.5 / 1.15 = 79.6 kW | | 6 | Measure or estimate actual power factor | 0.85 | | 7 | MD (kVA) = Step 5 / Step 6 | 79.6 / 0.85 = 93.6 kVA | | 8 | Add 15-20% future growth | 93.6 × 1.2 = 112.3 kVA | | 9 | Final MD for equipment sizing | 113 kVA (or ~125 kVA transformer) | Conclusion Maximum Demand calculation is not a one-time academic exercise; it is a continuous, living process that directly affects capital expenditure (CAPEX), operational expenditure (OPEX), and system reliability. A 15-minute oversight can result in months of inflated electricity bills. maximum demand calculation

Example: A 1-minute spike of 1,000 kW averaged over 15 minutes: [ \frac(1000\ kW \times 1\ min) + (100\ kW \times 14\ mins)15\ mins = \frac1000 + 140015 = \frac240015 = 160\ kW ] [ MD = \left( \sum_i=1^n (Load_i \times Demand\