Calculateur de Dimensionnement de Génératrice Gratuit
Déterminez la puissance de génératrice nécessaire pour votre installation. Calculez la capacité requise selon vos équipements électriques.
Minimum Generator Size
9.0 kW
Minimum Generator Size vs Total Running Watts
Formule
Generator Sizing
Minimum kW = Running Watts + Starting Surge
Motors (AC units, pumps, refrigerators) draw 2 to 6 times their running watts during startup. Add the surplus starting watts of the largest motor to the total running watts of everything else.
Exemple Résolu
5,000W running load, largest motor is 2,000W with 3x starting surge.
- 01Running = 5,000W
- 02Surge = 2,000 x 3 - 2,000 = 4,000W extra
- 03Total = 5,000 + 4,000 = 9,000W = 9.0 kW
- 04Select a 10 kW generator.
Questions Fréquentes
What appliances have the highest starting surge?
Central AC units (3-5x), well pumps (3-5x), and sump pumps (2-3x) have the highest starting surges. Resistive loads like heaters and lights have no surge.
Should I size for the whole house?
A whole-house generator typically needs 15-25 kW. For a portable backup, prioritize essential circuits (fridge, sump pump, furnace, lights) and size accordingly.
Apprendre