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Creating Calculation Schedules

How to perform calculations on your electrical system and create fault and voltage drop schedules.

Calculate the Project​

Run the ElectroBIM Design→  Calculate Whole Project command.

This will perform fault, voltage drop, wire sizing, and other calculations on your entire electrical model. It will also update the labels, graphics, and feeder schedule on the single-line diagram. This process takes a moment.

Create and Modify the Fault Schedule​

  1. Run the ElectroBIM Design→  Schedules→Fault command. The FAULT CURRENT SCHEDULE will open.

  2. Run the Revit Modify Schedule/Quantities→  Insert command. The Select Fields dialog box will open.

  3. Make the following changes to the fault schedule:

    1. Remove the Short Circuit Rating field from the Scheduled fields ☰ list.
    2. Add the DMET_Panel_BusAmps and DMET_Panel_Distribution_System fields to the Scheduled fields ☰ list.
      ElectroBIM shared parameters always begin with DMEN for number types or DMET for text types.

  4. Press the button to close the dialog box.

The fault schedule will be updated. You can make further changes to the schedule title, field headings, and column order the same way as any other schedule in Revit.

Create and Update the Voltage Drop Schedule​

  1. Run the ElectroBIM Design→  Schedules→Voltage Drop command. The VOLTAGE DROP SCHEDULE will open.

The voltage drop at transformer T1 and its downstream panels is probably a little high. That is partly because the voltage drop through transformers is being included by default. This setting can be changed depending upon how you want to calculate voltage drop through a transformer.

  1. Run the ElectroBIM Design→  Customization→ Project Options command. The Options dialog box will open.

  2. Set Transformer voltage drop calculation method ▾ to Ignore transformers.

  3. Press the button to close the dialog box.

  4. Run the ElectroBIM Design→  Calculate Whole Project command.

The voltage drop schedule will update to show the new values.

Calculate Part of the Project​

  1. Run the ElectroBIM Design→  Panel Edit command. The Panel Edit dialog box will open.

  2. Select panel A from the list and set Bus Size / Mains ▾ to 60.

  3. Select panel B from the list and set Bus Size / Mains ▾ to 60

  4. Press the button to close the dialog box.

  5. Run the ElectroBIM Design→  Schedules→Fault command. The FAULT CURRENT SCHEDULE will open.
    This step is optional, but will make it easier to see the changes.

  6. Run the ElectroBIM Design→  Calculate Part of Project command. The Calculate Part of Project dialog box will open.

  7. Select panel DP from the list and press the button.

Calculations will be performed only on the selected distribution equipment and downstream devices. When the calculation finishes, the fault schedule will update to show the new values.