Single Line Diagram

Selecting the Single Line Diagram in the Dashboard will open up a new main editor window tab next to the dashboard. In the Single Line Diagram you can create Substations, Voltage Levels, Bays, Busbars, and Power Equipment. You can also connect Power Equipment to other Power Equipment and to Busbars.

To create Functions, Logical Nodes, and virtual IEDs, open the Function Specification Diagram of a Substation, Voltage Level, or Bay.

Palette

Electrical Connection

Connection tool used to draw electrical connections between Power Equipments and from Power Equipment to Busbars.

Substation Structure

Contains entries to create new Substation and Voltage Level elements

Bay & Busbar

Contains entries to create new Bay or Busbar elements

Bay Templates / Bay & Bus bar Templates

Contains all available Bay or Busbar templates that are in the currently active library and whose context matches the currently selected Voltage Level element.

Power Equipment Library

Contains all available types of Power Equipment, including types from the currently active library. Power Equipment from the library, and predefined subtypes of certain equipment, can be found by expanding the small arrow on the left of an entry:

Drawing a Single Line Diagram

Creating elements from the palette

Elements can be created by clicking on their entry in the palette, and then clicking on the canvas.

Use left click to select the element in the palette and another left click to add it on the canvas. Drag and drop isn’t available here.

Since SCL is structured hierarchically, this structure is also reflected in STS - there is an ID field shown on Voltage Levels and Bays that displays the hierarchical path.

When right-clicking an element, the ‘Select children’ entry will also highlight all elements that are proper children of the selection.

There is also an icon in the lower right corner of structural elements. A blue icon indicates that this element is currently active. Selecting an element will turn it and its parents active:

The voltage level 'J' is part of Substation ZAPHIR. The blue icon in the lower right corner indicates it is currently active. New Bays and Bus Bars will be added to 'J' while it remains active.

The Bay ‘01’ is a direct child of voltage level ‘E'. It is not currently active - to add equipment to '01’, it first needs to be selected.

Newly created elements will be added to the currently active element of the appropriate hierarchy level.

• Voltage level and Power Transformers are added to the active Substation

• Bays, Bus Bars to the active Voltage Level

• Equipment other than Power Transformers are added to the active Bay or Bus Bar

Make sure that the correct element is active before adding Voltage Levels, Bays, Busbars, or Power Equipment

Drawing electrical connections

Using the “Electrical Connection” tool from the palette allows connecting power equipment with each other and with Busbars.

When connecting more than two elements with each other, first draw a connection line between two elements and then connect the next element with the already existing connection line.

Hold down the CTRL key when releasing the mouse button to keep the connection tool active, and keep drawing the next connection.

Relevant Views

Below the main editor window, there are several other views that are relevant to the Single Line Editor:

• Properties View

• Signals View

• Inputs View

Selecting elements in the main window will update the content of these views to display additional information on the selected item.

Relevant Element Properties

The Properties view shows additional attributes of the selected element and allows editing some of them.

Substation

Voltage Level

Bay/Busbar

Power Equipment