Single Line Diagram Types and Symbols - Intergraph Smart Electrical - Help - Hexagon

Smart Electrical enables you to generate single line diagrams for the following:

• A power distribution board that you select in the Electrical Index. A PDB-based single line diagram is a document that includes a power distribution board general arrangement drawing and a power distribution board schedule. The software generates a single line diagram for a selected power distribution board that contains all the PDB buses, circuits, circuit components, and their inter-connections (bus couplings). Note that the software places the PDB cells and circuits on a drawing in a particular order. This order depends on the cell and circuit sequence in group value defined in the cell and circuit properties.

• An electrical item that you select in the Electrical Engineer. A single line diagram that you generate from the Electrical Engineer is a main or key single line diagram of the electrical network for a selected set of items created according to the generation options that you predefine.

• A blank single line diagram template (manual SLD). Using a blank template allows you to drag electrical items from the Electrical Index that you want to appear in your single line diagram. These items can include buses, offsite power supplies, generators, battery banks, converting equipment not contained within PDBs, and standalone disconnect electrical equipment. After positioning the items on the SLD template, the software completes the drawing according to the generation options that you defined. The generated SLD will include the dragged item and all the items below up to the next associated load.

Single Line Diagram Types

You can generate the following types of single line diagram when generating an SLD for an electrical item that you select in the Electrical Engineer. These options are not available when generating PDB-based single line diagrams.

Conventional

Generates a full and unfiltered single line diagram that includes all the associated cables, converting equipment, and loads.

Overall

Generates an SLD that displays multiple levels of buses but does not include individual loads. The following table specifies the items that are included in overall SLDs:

Based on bus rated voltage

Generates an SLD based on the bus rated voltage that you select from the list below.

Electrical analysis SLD

Generates a single line diagram that you can publish to an electrical analysis application such as ETAP. Also, after selecting this option you have to define the options for circuits and circuit internals on the Circuits and Internals tab.

Symbols in Single Line Diagrams

When generating an SLD, the software searches for a symbol for each electrical item that is included in the SLD source. Smart Electrical supplies you with a set of default symbols that you can use in your drawings. Alternatively, you can create your own custom symbols in Catalog Manager. After creating your symbols and defining them in the Options Manager, the software then uses the SLD symbols according to the following rules:

1. Smart Electrical checks whether the items included in the SLD source are associated with symbol files.  Wherever such an association exists, the software uses the associated symbol file to represent the electrical item in the single line diagram. You associate an item with a symbol file using the Associate Custom Symbols command on the Actions menu for an item that you select in the Electrical Index.

2. If Smart Electrical cannot find a symbol file associated with a particular electrical item, the software uses a symbol with a name that matches the item type name of the electrical item to be included in the single line diagram. This symbol resides in the folder defined in the Default SLD Symbol Path location in Options Manager.

For more information about SLD symbols, see Guidelines for Creating SLD Symbols in Catalog Manager.