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One-Line Diagrams: Making Changes After the Initial Generation

Friday, December 11th, 2015

<– Return to main How to Use One-Line Diagrams article.

The one-line diagram that is created the first time you run one of the generate commands is no what your final version will look like. The initial layout might need to be modified to be more clear. Changes definitely will happen and need to be reflected in the diagram. This page looks at how to make all these changes after the initial creation of your one-line digram.

The Update Command

The one-line diagram is not automatically when you make changes to your model (if it was, the first feature request you would make would be for an option to turn the automatic updates off!). Instead, you manually update the one-line diagram after you have made changes.

If you are using Design Master Electrical in AutoCAD, run the DM Electrical->One-Line Dialog->Update command.

If you are using Design Master Electrical RT in Revit, first the the DM Electrical->Electrical->Export command in Revit. Then run the DM Electrical RT->Update One-Line Diagram command in AutoCAD.

Here are the changes that these update commands will make:

  • All labels will be updated with the correct values.
  • Layers will be updated.
  • Any distribution equipment that has been removed from the project will be removed from the one-line diagram.
  • Any connections between distribution equipment that has changed will be updated.

Inserting New Distribution Equipment

There are two different ways you can add distribution equipment to your one-line diagram after it is initially generated.

Insert Distribution Equipment Manually: You can use the DM Electrical->One-Line Diagram->Insert Distribution Equipment or DM Electrical RT->Distribution Equipment->Insert Distribution Equipment command to manually insert the distribution equipment on the drawing. Once you locate the equipment on the drawing, feeders will be inserted to any upstream or downstream equipment.

Generate Again: You can use the Generate One-Line or Generate Riser command again. Any distribution equipment that is missing from the drawing will be inserted automatically along with any corresponding feeders. Distribution equipment and feeders that are already inserted will not be modified.

Moving Distribution Equipment

There are two different ways you can move distribution equipment that is inserted on your drawing.

Use the AutoCAD Move Command: You can use the AutoCAD move command. This method works well when you have one or a few pieces of equipment to move.

Select the distribution equipment and move it to a new location.

If you do not select the feeder, it will stay in the same location except for the part connectided to the distribution equipment you moved.  The connected end will move with the distribution equipment.

If you do select the feeder, it will stay in the same shape but move with the distribution equipment. The end not connected to the distribution equipment will stay where it is to maintain the connection to the other piece of equipment.

Use the Design Master Move Command: You can use the DM Electrical->One-Line Diagram->Move Distribution Equipment or DM Electrical RT->Distribution Equipment->Move Distribution Equipment command to move everything connected to a piece of distribution equipment. This method works well when you need to move a large group of connected equipment.

You will be prompted to select a piece of distribution equipment. That equipment plus all the downstream feeders and connected distribution equipment will all be selected.

You will then be put in the standard AutoCAD move command. Select a base point and displacement point. All of the selected items will be moved together.

Moving Feeders

See the Feeders page for information on how to modify feeders once they are inserted.

Modifying Distribution Equipment Values

How you make changes to the underlying model of a piece of distribution equipment depends upon which of our programs you are using.

If you are using Design Master Electrical for AutoCAD, use the DM Electrical->One-Line Diagram->Edit Distribution Equipment command. Select the piece of distribution equipment to modify and the dialog to edit it will be opened. You can also make changes using the commands in the DM Electrical->Distribution Equipment section of the menu.

If you are using Design Master Electrical RT for Revit, go to Revit and make the changes to the model there using standard Revit commands and the DM Electrical->Panels->Edit Panel command. Once you are done making changes, make sure to use the DM Electrical->Electrical->Export command to export them to AutoCAD.

Changing the Blocks that are Used

To change the graphics that are used in the one-line diagram, use the DM Electrical->One-Line Diagram->Change Graphics or DM Electrical RT->Change->Change Graphics command.

If you select a piece of distribution equipment, you can change the graphic that is used for the equipment.

If you select a feeder, you can change the graphics used for the different blocks that are inserted on the feeder. You can select multiple feeders and change all of their graphics at the same time using this command.

Changing Layers

To change the layers used in the one-line diagram, use the use the DM Electrical->One-Line Diagram->Change Layer System or DM Electrical RT->Change->Change Layer System command.

Select a piece of distribution equipment or a feeder, then select the layer system that should be used. The layer will be updated based upon the layer system you choose.

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