Voltage Drop

Creates a schedule called VOLTAGE DROP SCHEDULE and sets it to the active view. If a schedule of that name already exists, this command sets the schedule to the active view but does not otherwise modify it.

The default schedule layout is shown below. Information about the voltage drop at the upstream feeder for each piece of distribution equipment in the project is listed. The devices are ordered based upon the connections between devices in the model.

The VOLTAGE DROP column uses the DMET_VoltageDrop_Feeder shared parameter by default. This parameter displays a warning in the value for any voltage drop that exceeds 3%. To display the fault without any warnings, replace the column with the DMET_VoltageDrop_Feeder_NoWarnings shared parameter.

Once the schedule is created, you can modify it using standard Revit tools.

voltage-drop-schedule

Training Videos

Voltage Drop Calculations in Revit

Related Options

Transformer voltage drop calculation method: Sets how voltage drop is calculated through transformers.

Feeder voltage drop percentage limit: Sets the maximum voltage drop percentage allowed on feeders.

Output shared parameter values as uppercase: Sets whether shared parameter outputs are displayed only in uppercase letters.

Feeder wire make-up length: Sets additional length to be added to feeders for connections.

Calculate feeder voltage drop based upon 80% of panel capacity: Sets whether voltage drop for each distribution equipment is based upon its calculated load or 80% of total capacity.

Calculate branch circuit voltage drop based upon 80% of breaker capacity: Sets whether voltage drop for each branch circuit is based upon its calculated load or 80% of total capacity.

Voltage drop power factor: Sets whether the power factor is based upon the settings for the family or a fixed value.


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