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Add the three figures together. Assuming these loads are on all the time would give the maximum generator capacity for sizing purposes. If they are not on all the time then downsize the generator by the diversity factor of the load.
The shaft power required by any incompressible fluid mover is the same as it has always been - the volumetric flowrate multiplied by the pressure rise divided by the efficiency.
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Dear Guest,
Add up all the loads.Use a diversity factor of 0.7 & a load factor of
1.25 ( to take care of the starting loads of the equipments)
DG Kva= 306.427 x (0.7 x 1.25)= 268.123 Kva.
Select the DG set nearest to 268 Kva.
Choose 250 or 320 Kva depending upon the per Kva cost of the set & operational
and Maintenance costs.
Manroop.Chennai.