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Refer to exhibit.
An electrical designer expects the total connected load on the switchboard to be 4000VA. but Revit Indicates a total connected load of 3606VA. What Is the cause of the discrepancy?
In the exhibit, the designer expects the total connected load to equal the sum of the 4 motor loads:
4 motors 1000 VA each = 4000 VA expected
However, Revit is showing a Total Connected Load of 3606 VA instead.
This difference occurs because Revit applies Motor Demand Factors automatically when a load classification is set to ''Motor.'' Demand factors modify the total connected load based on electrical engineering rules.
Revit documentation confirms:
''Assign demand factors to load classifications.''
''Demand loads can be shown on panel schedules.''
In the exhibit, the Load Classification shows Motor with a Demand Factor of 117.87%, which modifies the connected load values in the switchboard totals.
Revit is therefore calculating the effective connected load based on the applied demand factor, not a simple arithmetic sum. That is why the panel's connected load number 4000 VA.