Diesel generator size calculation is an important part of any power system design. In order to ensure the correct amount of power, it’s necessary to calculate the size of the diesel generator set that is needed. This process involves determining the total power required, the duration of the required power, and the voltage of the generator.
Calculation of total connected load
Step 1- Find the Total Connected Load of the Building or Industries.
Step 2- Add 10 % Extra Load to the final Calculated Total Connected Load for the future consideration
Step 3- Calculate Maximum Demand Load based upon the Demand Factor
Step4-Calculate Maximum Demand In KVA
Step 5-Calculate Generator Capacity with 80 % Efficiency
Step 6-Finally Select the DG size as per Calculated value from the DG
selection Chart
Step 2- Add 10 % Extra Load to the final Calculated Total Connected Load (TCL) for future consideration
√Calculated Total ConnectedLoad(T.C.L)=333 KW
√10% Extra Load of the T.C.L =10 x333
100
=33.3 Kw
Final Total Connected Load(T.C.L) =366.3 Kw
Step-3 Calculation of Maximum Demand Load
based upon the Demand Factor Demand Factor of the Commercial Building is 80%
Final Calculated Total Connected Load(T.C.L) =366.3 Kw
Maximum Demand Load as per 80%Demand Factor =80X366.3
100
So Final Calculated Maximum Demand Load Is =293.04 Kw
Step-3 Calculation of Maximum Demand Load
based upon the Demand Factor Demand Factor of the Commercial Building is 80%
Final Calculated Total Connected Load(T.C.L) =366.3 Kw
Maximum Demand Load as per 80%Demand Factor=80X366.3
100
So Final Calculated Maximum Demand Load Is =293.04 Kw
Step 4-Calculate Maximum Demand Load In KVA
Final Calculated Maximum Demand Load =293.04Kw
Power Factor =0.8
Calculated Maximum Demand Load in KVA =293.04
0.8
=366.3 KVA
Step 5-Calculate Generator Capacity with 80 % Efficiency
Final Calculated Maximum Demand Load =366.3 KVA
Generator Capacity With 80%Efficiency =80×366.3
100
So Calculated Generator Capacity is =293.04 KVA
Step 6-Select the DG size as per Calculated value from the Diesel Generator selection Chart
Post time: Apr-28-2023
