The document provides instructions for building a one-line diagram in ETAP software. It describes how to add elements like a power grid, busbars, cables, transformers, motors and protective devices. Connections between elements are made by clicking and dragging between connection pins. Element properties can be viewed and edited by double clicking the element icon. Composite networks allow grouping elements to reduce clutter. Protective devices can be added directly onto interconnect lines.
The document provides instructions for building a one-line diagram in ETAP software. It describes how to add elements like a power grid, busbars, cables, transformers, motors and protective devices. Connections between elements are made by clicking and dragging between connection pins. Element properties can be viewed and edited by double clicking the element icon. Composite networks allow grouping elements to reduce clutter. Protective devices can be added directly onto interconnect lines.
The document provides instructions for building a one-line diagram in ETAP software. It describes how to add elements like a power grid, busbars, cables, transformers, motors and protective devices. Connections between elements are made by clicking and dragging between connection pins. Element properties can be viewed and edited by double clicking the element icon. Composite networks allow grouping elements to reduce clutter. Protective devices can be added directly onto interconnect lines.
The document provides instructions for building a one-line diagram in ETAP software. It describes how to add elements like a power grid, busbars, cables, transformers, motors and protective devices. Connections between elements are made by clicking and dragging between connection pins. Element properties can be viewed and edited by double clicking the element icon. Composite networks allow grouping elements to reduce clutter. Protective devices can be added directly onto interconnect lines.
The purpose of this tutorial is to show the fundamentals of building and manipulating a one-line diagram (OLD) in ETAP. Various elements will be added to the one-line view (OLV), and an introduction to equipment editors will be made. Open the ETAP 7.5.0 Demo and select the option “New Project” for this tutorial section.
To build or edit a one-line diagram in ETAP, you must be in Edit Mode. Click the Edit button on the Mode toolbar.
On the AC Edit toolbar, select a Power Grid (Utility) element by clicking on the Power Grid button. The cursor will change to the Power Grid icon when moving over the OLV. Click anywhere in the OLV to place a Utility on your one-line diagram.
By following the same procedure, insert the following elements until your OLD appears as follows:
☺Helpful Tips… Double-clicking on an element button allows you to drop it more than once. When finished just press the Esc key.
☺Helpful Tips… You can zoom in , zoom out , and zoom to fit page the OLV by clicking on the respective buttons located in the Project Toolbar.
You can stretch buses by placing the mouse pointer over either end of the bus, until a double arrow appears. Then click and drag to the desired length.
Operation Technology, Inc. 30 ETAP 14 Demo
Getting Started Analysis Capabilities
Now connect the elements in the one-line. Place the mouse pointer over the connection pin of an element, and it will turn red. Then click and drag to the connection pin of another element. Follow this procedure to connect all the elements on the one-line. In the case of buses, the entire element graphic functions as a connection point. Notice that a node is automatically inserted when connecting the cable to the transformer.
☺Helpful Tips… Power Grid U1
You can change the size, 1250 MVAsc orientation and symbol X/R = 120 standard for an element by right-clicking on the element and selecting the attribute you Cable1 would like to change. NEC 5.0kV 3/C CU, 133% Node automatically Size = 4/0 inserted Length = 200ft
The data contained in any element on the OLD can be accessed by opening its editor. Double- click Cable1 to open the Cable Editor. You can click any tab in the editor to open its respective page. Data can be entered manually into fields with a white background only.
Click the Library button on
the Info page to select a cable. Then click OK to exit both the Quick Pick window and the editor window. The engineering properties of the selected cable are now entered in the editor.
Operation Technology, Inc. 32 ETAP 14 Demo
Getting Started Analysis Capabilities
You can also manipulate the orientation and appearance of elements in the OLD. A list of options will appear if you right-click an element graphic. For example, you can rotate a power grid or load by right-clicking on it, select Orientation, and then select a rotation angle.
There is a variety of options that can be chosen
by simply right-clicking on an element graphic.
Populating a composite network is very similar to populating the first one-line. To open the composite network, double-click it’s graphic. The title of this window will be OLV1=>Network1. You may change its name by double-clicking anywhere inside the network’s OLV or by right- clicking on its graphic and selecting Properties. Connect the elements shown below to create a one-line diagram as was done previously. Now, to make this one-line look cleaner, you can right- click and select Hide Unconnected Pins.
☺Helpful Tips… Using composite networks helps making large one-line diagrams manageable.
Operation Technology, Inc. 33 ETAP 14 Demo
Getting Started Analysis Capabilities
Adding a Protective Device (PD) to your One-Line
Ensure that there is enough room between the elements you wish to add a PD. Adding a PD to your one-line does not require you to delete the line connecting the elements, instead, insert the PD on to the line where you like it to be. The PD will automatically connect to the line. Follow this procedure to add the remaining PDs shown in the final one-line.
To check if an element is energized click on the continuity icon
located in the project toolbar. All elements that are not energized will be grayed out. For example, with the continuity check on, open CB4. As shown in the figure to the right, CB4 and elements downstream are grayed out.
Creating a one-line diagram in ETAP is fast and easy. Once complete, you can take full advantage of all the powerful tools that ETAP has to offer.
