Electrical Single-Line Diagram

Electrical Single-Line Diagram

Single-Line Diagram

Automated, Easy, Intuitive
Create and manage single-line drawing schematic for 3-phase and 1-phase AC / DC, and grounding / earthling types  networks with unlimited buses, distribution panel boards and other elements including detailed instrumentation.
Low Voltage System Single Line Diagram
  • Fully integrated view with multiple voltage level handling
  • Unlimited main panel / distribution boards and graphical sub-panels 
  • Integrated 3-phase, 2-phase, 1-phase
  • Integrated AC, DC, grounding & earthing systems
  • Remote connectors
  • Multi-level nesting of sub-systems  
  • Region classifications & coloring
  • Interfaces for management of switching devices  
  • Charger / Rectifier / UPS modeling



Auto-Build is an automated and powerful tool for creating and editing the one-line diagram. The rule-based design of Auto-Build can significantly reduce the time spent on creating a one-line diagram.

  • Automated creation of a one-line diagram without leaving the equipment toolbar
  • Quick & intuitive one-line diagram generation
  • Automatic spacing & alignment rules
  • No need to drag, drop, locate, and connect
Singel Line Diagram Auto-Build Function



Add component information, input data, and study results in one block to view on the one-line diagram.

Datablocks are fully customizable allowing them to be shown, hidden, arranged, and formatted according to the user’s preference.

An advantage with using Datablocks is showing properties and results from different studies and displaying this information within the same one-line diagram.  Use intelligent text box and hyperlink to include additional customized data to your single-line diagram.

  • Customize input data & study results
  • Display results, tags, and/or properties
  • Define templates & share
  • Automatically apply templates
  • Instant preview of Datablock
Low Voltage System Software - Datablocks

Composite Network & Motors

The “Composite Network,” or sub-network allows users to model a portion of their project and represent it as a single element, providing a more simple and organized appearance. The “composite network” can be nested for an unlimited number of sub-networks, allowing for multiple layers in one project.

  • Customizable Views
  • Unlimited Connections
  • User-Defined Location & Sizing
  • Visualize Properties & Results
composite network motors

Auto-Range & Precision

Intelligent Data Formatting

  • Rule-Based Study-Result Formats
  • Magnitude Dependent Precision
  • Share Result Precision Settings
  • Unit Detection
    • W ↔ kW ↔ MW
    • var ↔ kvar ↔ Mvar
    • VA ↔ kVA ↔ MVA
    • A ↔ kA
Auto-Range and Precision

Theme Manager

Set different themes for individual one-line diagrams. Themes can be color coded based on standard, voltage level, area, ground, earthing, and grounding by ground switch. The user can also add contouring as an option. This functionality allows the user to place a user-configurable color map behind the one-line diagram. These maps are color coded based on voltage or power flow magnitude.

User-defined result format

  • Display / hide based on:
    • Zoom level
    • Equipment type
    • Equipment state
    • Info annotations
    • Study Results
    • Datablocks
ETAP Theme Manager



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