Section Properties

The Section Properties dialog box is basically composed of three parts: (1) the identification of the section; (2) the Devices group box through which you can add or remove devices, indicate the type of load and select the settings pane to display; and (3) a pane showing the details of the component selected in the Devices tree list, including the specific settings that you can adjust.

The Section Properties dialog box is automatically displayed each time you Add, Insert or Split a section using the Edit menu items or using the related commands in the Advanced Editor Tools toolbar (see 2.5.11).

You can display the Section Properties dialog box of an existing section by highlighting that section on the one line display and select Properties in the contextual menu you access with a right-click.

You may display the whole dialog box or collapse it to show only the fields identifying the section along with the Devices group box. To do so, click on the Collapse or the Expand button at the bottom of the dialog box, on the left side.

3.2.1 Section Identification

Section ID This is the unique identification label for the section. The section (ID) may not contain blank spaces.

Phase Activate the checkbox(es) to define the phase(s) present in the section.

Zone To view to which zone a section is associated. The field is greyed out as it is for information only. A zone is created using the command Edit > Assign Zone (see 5.10).

Environment To associate an environmental attribute to the section. Environmental factors are taken into account in the calculation of reliability indices in RAM analysis. To create an environment and set its attributes, go to the menu command Network > Environments (see 7.6).

Navigator

To select the section immediately upstream , or downstream from the current selected section. The list of devices in the group box right below will be refreshed immediately with the components of the newly selected section. When the Navigator gets at a junction, a pop up list is displayed with the possible paths; click on the section you want.

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3.2.2 Devices Group Box

Devices To add or remove devices, and to select in the tree list the element for which you want to adjust the settings. When you select an element, the pane to the right of the dialog box displays the main settings properties of the element in question.

Also, still in the tree list, you may see sub-entries that are other types of parameters that can be set. In other words, this is where all the Settings dialogs are displayed. Refer to the User Guides for details on the settings of individual equipment and lines. See also 3.3.1 Node Settings.

To add a device type from the pull down menu. The element selected from the drop down menu is added downstream of the component selected in the tree list.

To remove elements from the section. Click Remove, and then select the element to remove from the pop up list that will appear. Note that you cannot remove nodes, lines or cables.

3.2.3 A word about the Settings

The default properties for the devices, lines, etc. are set through the commands found under the Equipment menu. Once a section is identified as a line or a cable, and when equipment is connected to a section, you can make adjustments to them “in the field”. These adjustments are called “settings” and the ones that are available for adjustment are comprised in the right hand portion of the Section Properties dialog box.

Note: The data given in the settings pane of the Section Properties dialog box have priority over the (default) data given when the equipment was originally defined under the Equipment menu.

To modify the settings of a specific instance of a device, click on the elements in the Devices list of the dialog box to select the target equipment’s layer, and sub-layers, and then modify the related parameters in the Settings group box according to your requirement. Refer to the Equipment Reference manual for more information.

3.2.4 Section and Nodes Contextual Menus

A right-click on a highlighted section or node will display the contextual menu that will comprise only the commands relevant its parameters and state (i.e. all or only some of the following commands will be available). The options in the contextual menu displayed vary depending on the elements part of the section and on where you click on the section. The example below was obtained by clicking on the load symbol of a section with distributed load.

The possible options are identified below. Commands specific to nodes are also included in this list.

Disconnect/

Connect

Same as Edit > Disconnect (see 5.20) See also section 5.19 Connect. A checkmark next to either word indicates the current status.

To disconnect/connect distributed or spot loads. For shunt capacitors and shunt reactors, disconnects the equipment without deleting it.

In all those cases, an icon showing the state will be displayed next to the symbol.

Move… Applies to loads. To move the load from one phase to another one available.

Open / Close To change the state of a switching device to open or close.

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TCC Applies to protection devices. When the right click is done on a node or on a section, the Branch Device Coordination option will be available, where the user will be asked to select the downstream and the upstream points of the branch to analyze. The user will also have the possibility to request a short-circuit and/or a load flow analysis to be run for that branch..

When the right-click is done on a device (equipment or instrument), two more options will be offered to the user:

• Create Device Settings: to set the parameters of the device’s time-current curve (once set, the contextual menu option will change to Adjust Device Settings.

• Display Curve: to display the time-current curve of the selected device in a tabbed window.

The details about the three options are provided in the TCC Interface User Guide.

Bypass To bypass the series device selected.

Add Instrument Depending on characteristics of the node or the section on which the right click was done, the software will propose a number of instruments that can be installed. Selecting one instrument from the submenu will display the Properties dialog box of the instrument.

See the Instrument chapter in the Equipment Reference manual for more information.

The instruments can be shown on the main display or hidden by clicking on the Display all protection instruments button in the Display toolbar (see 2.5.7).

Add Breakpoint

A breakpoint allows hiding the section portion downstream of the breakpoint. A tag is displayed at the breakpoint indicating it. To display the complete section, click the Show All Connections button in the Display toolbar (see section 2.5.7). The breakpoint is added in the section where the mouse cursor was positioned when right-clicking.

The breakpoint is also an intermediate node and has all its characteristics. Note that the intermediate node does not allow hiding a portion of a section.

Add

Intermediate Node

To create intermediate points (connectors) on the section. See section 3.3.1 Node Settings to learn how to see the list and edit the coordinates of the nodes.

Apply Fault Displays the Shunt Fault Analysis dialog box to allow running that analysis on the point selected (or on another point once the dialog box is displayed).

Convert to Bus / Node

Allows converting a node to a bus and vice-versa. The option Convert to node is available only when the bus to convert has only one node.