Define Transformer Connections - Intergraph Smart Electrical - Help - Hexagon

Intergraph Smart Electrical Help

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Intergraph Smart Electrical
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Smart Electrical Version
10
  1. In the Electrical Index, expand the folder hierarchy Electrical Equipment > Converting Equipment > Transformers.

  2. Right-click a transformer primary winding, and on the shortcut menu, select Connections and Tapping.

  3. On the Transformer Connections and Tapping dialog , select the tab for the winding where you want to make the definitions: Primary, Secondary 1, or Secondary 2.

  4. Specify the connection, for example, Wye, Delta, Star.

  5. Specify the type of neutral grounding that you require. The software does not validate the type of connection that you selected and allows you to specify neutral grounding for all connection types.

  6. Where the neutral grounding value is Solid Grounding or Impedance select the ellipsis button beside Grounding cable to open the Find dialog so you can select a grounding cable.

    SHARED Tip If necessary, define a new grounding cable, ensuring that you select the Use for neutral grounding check box - only those grounding cables for which this check box is selected are available for selection.

  7. Where the neutral grounding value is Impedance select the ellipsis button beside Grounding resistor.

    • On the Find dialog, the software retrieves all the existing resistors regardless of whether they have or have not been associated with transformers. Make sure that you select an appropriate resistor that has not been associated yet.

    • If necessary, define a new resistor.

  8. Select Apply to accept the values.

  9. For a Secondary tab, enter values for the connection group, feeder winding, and phase shifts as you require.

  • You must specify a separate grounding cable and resistor for each winding, if needed.

  • To enable the display of grounding cable and resistor data in an SLD, you must use a transformer symbol that includes macros for these items. To do this, right-click on the transformer, and on the shortcut menu select Associate custom symbols. On the Associate Custom Symbols dialog, under Document Type, select Single Line Diagrams, then navigate to the symbol folder and select the appropriate file.