See Also
This dialog is used to determine the branches that would isolate the Facility from the External region as specified in the Select the Busesdialog. When switching to the Facility Analysis page, the application builds a graph data structure and reports information regarding the External Region and the Facility.
To access the Facility Analysis Dialog go to the Tools ribbon tab, and choose Connections > Facility Analysis Dialog from the Other Tools ribbon group.
Select the Buses
The options and use of this page are described in their entirety in the topic titled Bus Selection Page.
Facility Analysis
External Region
The external region is a set of buses from which the Facility would be isolated. Although the buses in the external region may not be adjacent to each other, the algorithm will assume that any of these buses can supply electricity to the Facility and thus the buses in the External region are considered to be connected. The External region is defined using the Select the Busesdialog.
External Region - Number of Buses
Indicates the number of buses in the External region. This number is equal to the number of buses in the system that were labeled as External in the Select the Buses dialog. There should be at least one bus in the external region.
External Region - Capacity
Indicates the number of branches that connect the external buses to study buses in the system. This is the outgoing graph flow capacity from the External region toward the Facility.
Facility
Is the set of buses that constitute the Facility. Although the buses in the Facility may not be adjacent to each other, the algorithm will assume that any of these buses may receive power from the External region, and thus the Facility buses are considered to be connected to each other.
Facility - Number of Buses
Indicates the number of buses in the Facility. This number is equal to the number of buses in the system that were labeled as Study and whose Selected field is set to YES. There should be at least one bus in the Facility.
Note that if a bus was specified to be External and its Selected field is YES, then the application will issue an error, since Facility buses cannot be in the External region. In such cases the status will indicate that the graph structure is incomplete.
Facility - Capacity
Indicates the number of branches that connect Facility buses with study buses. This number is equal to the outgoing graph flow capacity from the Facility toward the External region.
Status
Shows the status of the Facility Analysis application. If the External region and the Facility are specified, the status will indicate that the graph structure is ready. During execution of the Min Cut algorithm, the status shows the number of the augmenting paths found so far and the number of branches in the current path.
Find Minimum Cut
Press this button to initiate the Min Cut algorithm. The button is inactive if the graph structure is incomplete, i.e., there is either no external bus or facility bus, or facility buses were found inside the External region.
Show Paths
Toggle this button to visualize the augmenting paths at the bottom of the form. The augmenting paths are listed in the order in which they were found. Note that the first path has fewer nodes, since the algorithm uses a shortest (least number of nodes) path routine. For each augmenting path the number of buses in the path, as well as the corresponding bus numbers are listed in the dialog. This button is enabled only if a min cut has been found.