Outage Correction
Web Switching Management can be used for outage correction. After an outage is completed, you can either correct the associated outages by transitioning the plan to the Rework state and clicking the Correct Outage button, or you can create a new Outage Correction sheet and re-record steps to replace a single selected outage.
Correcting Outages in a Rework Sheet
When you transition your sheet to the Rework state, a Correct Outage button (
) will appear on the Steps tab. Change step times or use the Find/Replace dialog box to change devices and phases, then click the Correct Outage button to update the event with the new customer counts.
) will appear on the Steps tab. Change step times or use the Find/Replace dialog box to change devices and phases, then click the Correct Outage button to update the event with the new customer counts. Due to the complicated nature of the grouping algorithm, the steps and event relationships need to remain unchanged. That is, if step 6 originally restored the outage created in step 2, then step 6 needs to continue to restore the outage created in step 2. The Events column appears when the sheet is in Rework mode to help clarify this situation.
Using Outage Correction Sheets
After you create a new Outage Correction sheet, you will re-record the outage restoration sequence in study mode. Although the scenario is recorded in study mode, the corrections will be made to the real-time outage. Study mode is used so that the model can be altered to resemble the real conditions when the outage was created.
Note: In order to use Outage Correction, you will need to have access to an available study session.
Re-Recording the Outage Restoration Sequence in Study Mode
To re-record the correct outage restoration sequence, follow these steps:
1. In your study mode Viewer, manipulate the model to represent what the conditions were when the outage was created. This will be used as your template to record a new scenario into the Outage Correction sheet.
2. Open Event Details for the completed event, click the Switching… button. The Open Or Create New Switch Sheet dialog box is displayed. Select the Outage Correction sheet type and then click the Create button. An Outage Correction switching sheet is created for the event.
3. In the Outage Correction switching sheet, turn recording on.
4. Record the entire set of corrected outage and restoration steps in the Viewer, using the Control Tool's date/time selector to set the correct operation times.
5. Manipulate the model back to the baseline, as in step 1. This is important because the algorithm plays the steps against the current study network to determine the customers affected. Use the Impacted Customers tab to verify that the correct number of customers will be impacted by the new set of steps.
6. Click the Correct Outage button on the Steps tab toolbar. A confirmation dialog box appears.
7. Click OK. The system validates the plan and, if successful, replaces all affected customer data for the related outage and updates the new outage time, customer count, and outage device. The Event Details, when re-loaded, will reflect any partial restoration changes as well.
Note: If you are replacing an outage that was involved in a partial restoration scenario, you will need to either update the other related outages or mark them so that they are not reported and calculated in your indices.
Outage Correction Error Codes
The Correct Outage button performs a number of validation actions that can result in errors and warnings.
• Outage Correction sheets must be associated with an event.
• The chosen event must be in the completed state.
• The outage time but be at least one second before the restore time .
• All customers outaged by the new steps must also be restored.
• Original customer calls must be affected by the new steps and must fit within their outage and restoration times.
• Customers who called in the original event are no longer in the model.
• Devices used in the new steps were not valid at the time of the original event.