Equipment

Class Description

The parts of a power system that are physical devices, electronic or mechanical.

Attributes

Name	Type	Description
aggregate	Boolean	The aggregate flag provides an alternative way of representing an aggregated (equivalent) element. It is applicable in cases when the dedicated classes for equivalent equipment do not have all of the attributes necessary to represent the required level of detail. In case the flag is set to “true” the single instance of equipment represents multiple pieces of equipment that have been modelled together as an aggregate equivalent obtained by a network reduction procedure. Examples would be power transformers or synchronous machines operating in parallel modelled as a single aggregate power transformer or aggregate synchronous machine. The attribute is not used for EquivalentBranch, EquivalentShunt and EquivalentInjection.
inService	Boolean	Specifies the availability of the equipment. True means the equipment is available for topology processing, which determines if the equipment is energized or not. False means that the equipment is treated by network applications as if it is not in the model.
networkAnalysisEnabled	Boolean	The equipment is enabled to participate in network analysis. If unspecified, the value is assumed to be true.
normallyInService	Boolean	Specifies the availability of the equipment under normal operating conditions. True means the equipment is available for topology processing, which determines if the equipment is energized or not. False means that the equipment is treated by network applications as if it is not in the model.

Relationships

Ancestors

• PowerSystemResource

Descendents

• AuxiliaryEquipment
• CompositeSwitch
• ConductingEquipment
• DCConductingEquipment
• GeneratingUnit
• HydroPump
• PowerElectronicsUnit
• ProtectionEquipment
• TransformerTank

Associations

Source Class	Source Cardinality	Target	Target Cardinality	Source Name	Source Assoc. Description	Target Name	Target Assoc. Description
Equipment	0..*	WeatherStation	0..*	Equipment		WeatherStation
Equipment	0..1	OperationalLimitSet	0..*	Equipment	The equipment to which the limit set applies.	OperationalLimitSet	The operational limit sets associated with this equipment.
Equipment	1	ContingencyEquipment	0..*	Equipment	The single piece of equipment to which to apply the contingency.	ContingencyEquipment	The contingency equipments in which this equipment participates.
Equipment	0..*	EquipmentContainer	0..1	Equipments	Contained equipment.	EquipmentContainer	Container of this equipment.
Equipment	0..1	Fault	0..*	FaultyEquipment	Equipment carrying this fault.	Faults	All faults on this equipment.
Equipment	0..1	LimitDependency	0..*	Equipment	The equipment for which this limit dependency model is organized under.	LimitDependencyModel	Limit dependencymodels organized under this equipment as a means for organizing the model in a tree view.
Equipment	1	EquipmentLimitSeriesComponent	0..*	Equipment	Equipment contributing toward the series limit. The reference here is to Equipment rather than a specific limit on the equipment so the grouiping can be reused for multiple limits of different types on the same instance of equipment.	EqiupmentLimitSeriesComponent	Equipment limit series calculation component to which this equipment contributes.
Equipment	1	ProtectiveActionEquipment	0..*	Equipment		ProtectiveActionEquipment	Protective action is controlling equipment. This can be direct signals from the control center, or emulation of action done by protection equipment.
Equipment	1	PinEquipment	0..*	Equipment	The Equipment that should be used in compare.	PinEquipment
Equipment	0..1	EquipmentUnavailabilitySchedule	0..*
Equipment	0..*	EquipmentContainer	0..*	AdditionalGroupedEquipment	The additonal contained equipment. The equipment belong to the equipment container. The equipment is contained in another equipment container, but also grouped with this equipment container. Examples include when a switch contained in a substation is also desired to be grouped with a line contianer or when a switch is included in a secondary substation and also grouped in a feeder.	AdditionalEquipmentContainer	Additional equipment container beyond the primary equipment container. The equipment is contained in another equipment container, but also grouped with this equipment container.
Equipment	0..*	UsagePoint	0..*	Equipments	All equipment connecting this usage point to the electrical grid.	UsagePoints	All usage points connected to the electrical grid through this equipment.
Equipment	0..*	OperationalRestriction	0..*	Equipments	All equipments to which this restriction applies.	OperationalRestrictions	All operational restrictions for this equipment.
Equipment	0..*	Outage	0..*	Equipments	All equipments associated with this outage.	Outages	All outages in which this equipment is involved.