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How to Use One-Line Diagrams

Posted on November 30th, 2015. Last updated on December 4th, 2023.

The following articles teach you how to use one-line diagrams in Design Master Electrical.

We recommend reading the articles in order, as each new topic builds on the lessons from the previous topics.  You will learn how to quickly create one-line diagrams using our software, match the one-line to your existing company standards, and synchronize any changes to your design. The goal is for you to be a one-line diagram power user by the time you finish.

Create Your One-Line Model: Before you can create a one-line diagram, you need to have created at least some of the panels and transformers in your project. Learn how to create them in Design Master Electrical.

Automatic Generation and Customization Options: The first draft of your one-line diagram can be generated for you automatically. The appearance can be customized to match your existing drafting as closely as possible. Explore all of the different customization settings that we offer.

Labels: Labels on the one-line diagram are updated automatically as you make changes to your design. Learn how to insert and format to provide the documentation your one-line diagram needs.

Creating Custom Blocks: The default blocks our software provides likely will not match the graphics you currently use on your one-line diagram. Learn how to create new blocks that work with our software to keep your one-line diagram looking as close your current ones as possible.

Feeders: The automatically inserted feeders will not always be in the right location. Learn about how to move and update them to make the connections between panels readable.

Making Changes After the Initial Generation: Designs change. Using our one-line diagram makes it easy to keep up. Learn about adding new panels, moving panels, updating and changing graphics, and generally keeping your one-line diagram synchronized with the rest of your design.

Meters: Meters are not explicitly modeled or automatically inserted in the one-line diagram. However, they can be manually inserted and updated.

Inserting Ground Wires and Other Graphics: Our one-line diagram features do not draw everything you might need.  Fortunately, you still have standard CAD drafting commands to fall back on when necessary.

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One-Line Diagrams: Labels

There are several commands for inserting and modifying informative labels on your one-line diagram.


One-Line Diagrams: Feeders

Here are commands you can use to modify feeders after they have been inserted on your one-line diagram.


One-Line Diagrams: Making Changes After the Initial Generation

This article explains how you can modify your one-line diagram after using the Generate commands, including how to reflect changes in your model.


One-Line Diagrams: Creating Custom Blocks

Using our commands along with standard CAD commands, you can easily create custom blocks for use in your one-line diagram.


One-Line Diagrams: Creating Your Model in AutoCAD or BricsCAD

How to set up your one-line model in Design Master Electrical for AutoCAD or BricsCAD.


One-Line Diagrams: Meters

Meters are not integrated with Design Master, but they can be added to the one-line diagram for drafting purposes.