: Public abstract <<Operation>> Operation
Created: 03/06/2011 11:36:47 PM
Modified: 06/24/2012 05:43:44 PM
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A Measurement represents any measured, calculated or non-measured non-calculated quantity. Any piece of equipment may contain Measurements, e.g. a substation may have temperature measurements and door open indications, a transformer may have oil temperature and tank pressure measurements, a bay may contain a number of power flow measurements and a Breaker may contain a switch status measurement. <br /></p><p>The PSR - Measurement association is intended to capture this use of Measurement and is included in the naming hierarchy based on EquipmentContainer. The naming hierarchy typically has Measurements as leafs, e.g. Substation-VoltageLevel-Bay-Switch-Measurement.<br /></p><p>Some Measurements represent quantities related to a particular sensor location in the network, e.g. a voltage transformer (PT) at a busbar or a current transformer (CT) at the bar between a breaker and an isolator. The sensing position is not captured in the PSR - Measurement association. Instead it is captured by the Measurement - Terminal association that is used to define the sensing location in the network topology. The location is defined by the connection of the Terminal to ConductingEquipment. <br /></p><p>If both a Terminal and PSR are associated, and the PSR is of type ConductingEquipment, the associated Terminal should belong to that ConductingEquipment instance.<br /></p><p>When the sensor location is needed both Measurement-PSR and Measurement-Terminal are used. The Measurement-Terminal association is never used alone.<br /></p>
Element Source Role Target Role
Terminal
Class  
Name: Measurements
Measurements associated with this terminal defining where the measurement is placed in the network topology. It may be used, for instance, to capture the sensor position, such as a voltage transformer (PT) at a busbar or a current transformer (CT) at the bar between a breaker and an isolator.
Name: Terminal
One or more measurements may be associated with a terminal in the network.
Details:
 
PowerSystemResource
Class  
Name: Measurements
The power system resource that contains the measurement.
Name: PowerSystemResource
The measurements associated with this power system resource.
Details:
 
Tag Value
GUIDBasedOn {AB1758FA-3A4D-478f-BE4F-ADC8E2F886CC}
Details:
 
Object Type Connection Notes
«Operation» Discrete Class Generalization  
«Operation» Analog Class Generalization  
«Operation» Accumulator Class Generalization  
IdentifiedObject Class Generalization