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

Inherits from

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
Equipment 0..* WeatherStation 0..* Equipment WeatherStation
EquipmentContainer 0..* Equipment 0..* AdditionalEquipmentContainer Additional equipment container beyond the primary equipment container. The equipment is contained in another equipment container, but also grouped with this equipment container. 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.
EquipmentContainer 0..1 Equipment 0..* EquipmentContainer Container of this equipment. Equipments Contained equipment.
Fault 0..* Equipment 0..1 Faults All faults on this equipment. FaultyEquipment Equipment carrying this fault.
OperationalLimitSet 0..* Equipment 0..1 OperationalLimitSet The operational limit sets associated with this equipment. Equipment The equipment to which the limit set applies.
ContingencyEquipment 0..* Equipment 1 ContingencyEquipment The contingency equipments in which this equipment participates. Equipment The single piece of equipment to which to apply the contingency.
EquipmentUnavailabilitySchedule 0..* Equipment 0..1
PinEquipment 0..* Equipment 1 PinEquipment Equipment The Equipment that should be used in compare.
ProtectiveActionEquipment 0..* Equipment 1 ProtectiveActionEquipment Protective action is controlling equipment. This can be direct signals from the control center, or emulation of action done by protection equipment. Equipment
EquipmentLimitSeriesComponent 0..* Equipment 1 EqiupmentLimitSeriesComponent Equipment limit series calculation component to which this equipment contributes. 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.
LimitDependency 0..* Equipment 0..1 LimitDependencyModel Limit dependencymodels organized under this equipment as a means for organizing the model in a tree view. Equipment The equipment for which this limit dependency model is organized under.
OperationalRestriction 0..* Equipment 0..* OperationalRestrictions All operational restrictions for this equipment. Equipments All equipments to which this restriction applies.
Outage 0..* Equipment 0..* Outages All outages in which this equipment is involved. Equipments All equipments associated with this outage.
UsagePoint 0..* Equipment 0..* UsagePoints All usage points connected to the electrical grid through this equipment. Equipments All equipment connecting this usage point to the electrical grid.