ACDCTerminal: An electrical connection point (AC or DC) to a piece of conducting equipment.
BaseVoltage: Defines a system base voltage which is referenced.
Bay: A collection of power system resources (within a given substation) including conducting equipment, protection relays, measurements, and telemetry.
BoundaryPoint: Designates a connection point at which one or more model authority sets shall connect to.
ConductingEquipment: The parts of the AC power system that are designed to carry current or that are conductively connected through terminals.
ConnectivityNode: Connectivity nodes are points where terminals of AC conducting equipment are connected together with zero impedance.
ConnectivityNodeContainer: A base class for all objects that may contain connectivity nodes or topological nodes.
Connector: A conductor, or group of conductors, with negligible impedance, that serve to connect other conducting equipment within a single substation and are modelled with a single logical terminal.
EnergySchedulingType: Used to define the type of generation for scheduling purposes.
Equipment: The parts of a power system that are physical devices, electronic or mechanical.
EquipmentContainer: A modelling construct to provide a root class for containing equipment.
GeographicalRegion: A geographical region of a power system network model.
IdentifiedObject: This is a root class to provide common identification for all classes needing identification and naming attributes.
Junction: A point where one or more conducting equipments are connected with zero resistance.
Line: Contains equipment beyond a substation belonging to a power transmission line.
PowerSystemResource: A power system resource (PSR) can be an item of equipment such as a switch, an equipment container containing many individual items of equipment such as a substation, or an organisational entity such as sub-control area.
SubGeographicalRegion: A subset of a geographical region of a power system network model.
Substation: A collection of equipment for purposes other than generation or utilization, through which electric energy in bulk is passed for the purposes of switching or modifying its characteristics.
Terminal: An AC electrical connection point to a piece of conducting equipment.
VoltageLevel: A collection of equipment at one common system voltage forming a switchgear.