Learn how to graphically represent the Main Distribution Board through a one-line diagram and schedule using the Analyze tab. This intricate process involves selecting the Main Distribution Board and allowing Revit to automatically create it based on the existing connections in the system browser.
Key Insights
- The Main Distribution Board can be graphically represented through a one-line diagram and also through a schedule. This is done by navigating to the Analyze tab and selecting Panel Schedules.
- Revit software is used to automatically create the Main Distribution Board based on the connections already made in the system browser, which can be found under the Systems tab and Electrical.
- Adjustments can be made to the number of poles, frame size, trip ratings, and load of the Main Distribution Board. Changes made to the board are automatically updated, and the load is calculated based on the loads placed on each panel board.
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We've now shown the Main Distribution Board graphically through a one-line diagram, but we can also show this Main Distribution Board through a schedule. To get a schedule for this board, we're going to go to the Analyze tab, then we go to Panel Schedules, and we want to select the Main Distribution Board and click OK. Revit automatically creates the Main Distribution Board based on the connections we've already made here in our system browser.
If we go to our Systems tab, and Electrical, and we go and open this up for Power, we'll see our Main Distribution Board, and we have our five circuits, and those align directly with the five circuits on our Main Distribution Switchboard. So that is that connection, Panel Board 1-4 and our Transformer. We can make some changes here.
We have the number of poles, so that's all three-phase power. The frame size is the physical size of that breaker, and then we have trip ratings. So for example, we can update these.
We can make our Panel Boards 200 amps, and it's really cool. You can see it highlights each circuit as I make the change. You change it here, it changes it there.
And we'll say that for the Transformer, we'll say 150 amps for now. Now, the next category is Load, and this is automatically calculated based on the loads placed on each one of these Panel Boards. Now, the Transformer already has a load.
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Where does that come from? If we open this up, we see that that Transformer is supplying this motor, and the motor already has a load. Now we've got a load onto that Transformer. There's nothing yet on our Panel Boards because we haven't yet connected the lights or outlets or anything yet.
As we do so, this load will start to update. Now we can update anything else we'd like. For example, under Remarks, we can call this our Step Up Transformer Serving Elevator.
And if we go to the bottom, we will see that there is a Total Estimated Load and Total Estimated Demand. As we continue working on this project, these numbers will go up.
