Contingencies Tab: Create Stuck Breaker Contingencies

See Also

The Create Stuck Breaker Contingencies option can be found on the Contingencies tab of the Contingency Analysis dialog under the Insert Special local menu options. The option allows the creation of new contingencies from contingencies that have explicit breaker outages defined. New contingencies will be created by treating each breaker as stuck in turn. The new contingencies will be comprised of all existing elements, minus the stuck breaker outage, plus open actions for breakers that are identified to isolate the stuck breakers. New contingencies will inherit the same value for the Skip field from the contingency from which they were created. Only branches with Branch Device Type of Breaker will be considered in determining the stuck breakers. Selecting this option will open a dialog with the following options:

Contingency Naming Convention

The options in this section will determine the format of the name of new contingencies. Contingencies will be named in the format Prefix_Contingency Label_Branch Field_Suffix.

Prefix

String used as the prefix of the new contingency name. If this is not specified, the underscore following the Prefix in the contingency name format will be omitted.

Branch Field

Field whose value will be used in the naming of the new contingency. The branch used to evaluate the field is the stuck breaker. If this is not specified, the underscore following Branch Field in the contingency name format will be omitted.

Suffix

String used as the prefix of the new contingency name. The default is "STK".

Include Contingency Label

Check this box to use the name of the existing contingency as part of the new contingency. If this is not checked, the underscore following Contingency Label in the contingency name format will be omitted.

Contingency Action Comment

The options in this section will determine the format of the comment of new contingency actions. Comments will be in the format Prefix_Branch Field_Suffix.

Prefix

String used as the prefix of the new contingency action comment. If this is not specified the underscore following the Prefix in the contingency comment format will be omitted.

Branch Field

Field whose value will be used in the comment of a new contingency action. The branch used to evaluate the field is the breaker in the new contingency action. If this is not specified, the underscore following Branch Field in the contingency action comment format will be omitted.

Suffix

String used as the suffix of the new contingency action comment.

Contingency Filter

Define Filter

Click this button to specify an Advanced Filter or Device Filter that is applied to contingencies. Only contingencies meeting this filter will have new contingencies created for stuck breakers. If this is not specified, all contingencies will be processed.

Allow New Contingencies with Same Actions as Existing Contingencies

If this box is checked, contingencies with the same actions as existing or newly created contingencies will be allowed.

Create Stuck Breaker Contingencies

Click this button to create the new contingencies. The contingency list will be permanently modified.

Click this button to close the dialog without creating any new contingencies.