An Underground Cable
Building an Underground Cable System
Unlike overhead lines, the Direct Connection method cannot be used with cable systems. This leaves just the Remote Ends method, which involves a Cable Configuration component with two Cable Interface components, representing the sending and receiving ends of the cable. The purpose of the interface components is to provide connection of the cable to the greater electric network. An underground cable system illustrated below:
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An Underground Cable |
Add one Cable Configuration component and two Cable Interface components to the page. The most straightforward way to add the interface components is via the Components tab in the ribbon control bar. See Adding Components to a Project for details.
The Cable Configuration component must be added by using the Component Wizard.
The Cable Configuration component and two Cable Interface components are interlinked through input parameters. Ensure that the following steps are taken:
Segment Name: Ensure that the segment name inputs in both the Cable Configuration component and two Cable Interface components are identical (case sensitive).
Number of Cables: The Number of Cables parameter in the Cable Interface components specifies how many individual cables there are in the system. Each of these cables however, could contain different numbers of conducting layers, and so the total number of conductors is arbitrary (this is why the Number of Conductors parameter is disabled in the Cable Configuration component). The user is required to specify the number of conducting layers for each cable in the Cable Interface components. This data must match what is defined within the Cable Segment Cross-Section.
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Cable Interface Component |
Specifying Cable Set-up in Cable Interface Parameters Dialog |
NOTE: These components do not need to be in proximity to one another. As long as they are connected by name, each component can be located anywhere in the project, including different modules.
The parameters of the cable may be adjusted directly within the Cable Configuration component. Simply right-click over the component and select Edit Parameters....
The properties given in the dialog are common to all elements of the cable. For information these parameters, see the Cable Configuration component help. To edit parameters specific to towers, conductors and ground, select Edit Definition.... See Editing a Cable Segment Cross-Section later in this chapter for details.
