Understanding the Load Shed and Restoration Tool
You can use the Load Shed and Restoration tool by logging into the Web Workspace with Web Switching with Administration privileges. Subscribe to the zones whose load groups you want to view in the Load Shed and Restoration tool.
To start the Load Shed and Restoration tool, select Load Shed and Restoration from the Web Workspace Tools menu; this option is only available when an Administration user is logged in.
Menu and Toolbar
File Menu
Actions Menu
Help Menu
Selected Load Pane
The Selected Load pane contains values for the total Configured Load, net load (Net PF Load), and DER output calculated from power flow (PF Gen) for the load groups selected in the Load Groups pane.
Find Groups Pane
You can find load groups by specifying search criteria.
• SCADA Only: Select this check box to search only SCADA load groups. Otherwise, both SCADA and manual load groups will be searched.
• Allow shedding of critical customers: Select this check box to allow shedding of critical customers.
• Feeders in nominal state only: Select this check box to find groups with feeders in nominal state only.
• Net load to shed (MW): Specify amount of net load in MW to shed. Search button is enabled when the amount is specified.
• DER Output less than (MW): Specify DER output in MW. This field is displayed only when power flow is licensed.
When you click Search, the load groups matching the search criteria will be selected in the load groups table.
Load Groups Pane
The Load Groups pane displays the load groups configured in the zones you have subscribed to.
Load Groups Table
The load groups are displayed in a table with the following data columns:
• Load Group: Name of the group.
• Type: SCADA or Manual. If all the switches in the load group are SCADA enabled then the group is a SCADA group, otherwise it's a Manual group.
• Rank: Dynamic rank of the group to perform load shed. The lower the rank value, the higher the preference to shed the group. Rank changes based on the last shed and restore times of the group.
• Select: check box to select or deselect a group for the load shed plan.
• Feeder: Name of the feeders in the group.
• Switch: Name of the switch to open or close for load shed and restoration on the feeder.
• Configured Load (MW): Load configured for the feeder. At group level it is the sum of the configured load of energized feeders in the group.
• PF Load (MW): Load calculated from power flow. At group level it's the sum of the power flow calculated load of the feeders in the group. This is displayed only when power flow is licensed.
• PF Gen (MW): DER output calculated from power flow. At the group level, this is the sum of the power flow calculated DER output of the feeders in the group. This is displayed only when power flow is licensed.
• # DERs: Number of DERs connected to the feeder. At the group level, it is the sum of DERs of all the feeders in the group.
• # Critical Customers: Number of critical customers of configured types for load shed and restoration. At the group level, it is the sum of critical customers of all the feeders in the group.
• Feeder Nominal: Yes or No. Yes, if the feeder is in nominal state; otherwise, No. At the group level, if all the feeders in the group are in nominal state, then the value is Yes; otherwise, the value is No.
• Feeder Status: Status of the feeder (Energized or De-Energized).
• Initial Priority: Initial priority set for the group for load shed operation. This column is hidden by default. To display the column, right‑click and select Select Columns... from the context menu, and then select the Initial Priority option.
• Plan #: Load Shed switch sheet plan number that contains the load group.
• Plan Status: Current status of the Load Shed switch sheet that includes the load group.
• Last Shed Time: Time when the load group was last shed.
• Last Restore Time: Time when the load group was last restored.
Selecting Columns to View
Right-click the table header cells and select the Select Columns... option. The Select Columns to Display dialog box will open that lists each of the column and allows you to select or deselect a column to view.
Note: You may rearrange columns by dragging them to the desired position.
Locking Columns
You may lock columns to keep them in view. When columns are locked, a horizontal scroll bar will appear allowing you to scroll to see the remaining columns. To lock columns, right-click the column furthest to the right that you wish the lock; the horizontal scrollbar will appear for all columns to its right.