You can generate a diagram from a trace on the network.

Add the Utility Network Analyst toolbar (if it is not already displayed).

First, trace a part of the network. Click the arrow button next to the Add Junction Flag tool and click Add Edge Flag tool. Click the primary line between Feeder 0804 Harrison and the substation to add an edge flag. Click the Trace Task drop-down arrow on the Utility Network Analyst toolbar. Click Trace Downstream, then click Solve.

Next, generate a diagram from the trace. Click the Generate New Schematic Diagram button to open the New Schematic Diagram dialog box. Click ElecDemo:\Feeders in the Schematic Dataset or Folder text box. Click the Diagram type drop-down arrow and choose GeoSchematic from the list. Keep the default [Create New Data Frame] option selected in the Output Data Frame drop-down list. Type a name in the Schematic Diagram Name text box for the diagram to be generated (for example, "Feeder 0804-Harrison"). Make sure the Tracing Result option is checked. Click OK. The new diagram is displayed in a viewer window.

Click Bookmarks on the main menu and click Feeder 0804-Harrison to see the full feeder. Resize the viewer window related to the newly created Feeder 0804-Harrison schematic diagram and arrange that window so the geographic and schematic data display side-by-side.