Class Description
An electrically connected subset of the network. Topological islands can change as the current network state changes, e.g. due to:
- disconnect switches or breakers changing state in a SCADA/EMS.
- manual creation, change or deletion of topological nodes in a planning tool.
Only energised TopologicalNode-s shall be part of the topological island.
Attributes
None
Relationships
Inherits from
Descendant classes
- No descendant classes
Leaf/Root class
| IsLeaf | IsRoot |
|---|---|
| False | False |
Associations
| Source Class | Cardinality Source | Target Class | Cardinality Target | Source Name | Source Assoc. Description | Target Name | Target Assoc. Description |
|---|---|---|---|---|---|---|---|
| TopologicalIsland | 0..1 | TopologicalNode | 0..1 | AngleRefTopologicalIsland | The island for which the node is an angle reference. Normally there is one angle reference node for each island. | AngleRefTopologicalNode | The angle reference for the island. Normally there is one TopologicalNode that is selected as the angle reference for each island. Other reference schemes exist, so the association is typically optional. |
| TopologicalNode | 1..* | TopologicalIsland | 0..1 | TopologicalNodes | A topological node belongs to a topological island. | TopologicalIsland | A topological node belongs to a topological island. |