: Public Class
Created: 08/05/2008 14:13:17
Modified: 04/02/2016 13:56:29
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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/>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/>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/>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/>When the sensor location is needed both Measurement-PSR and Measurement-Terminal are used. The Measurement-Terminal association is never used alone.<br/><br/>
Attribute
Public String
  measurementType
Details:
Notes: Specifies the type of measurement.  For example, this specifies if the measurement represents an indoor temperature, outdoor temperature, bus voltage, line flow, etc.<br/>When the measurementType is set to "Specialization", the type of Measurement is defined in more detail by the specialized class which inherits from Measurement.<br/><br/><br/>
Public PhaseCode
  phases
Details:
Notes: Indicates to which phases the measurement applies and avoids the need to use 'measurementType' to also encode phase information (which would explode the types). The phase information in Measurement, along with 'measurementType' and 'phases' uniquely defines a Measurement for a device, based on normal network phase. Their meaning will not change when the computed energizing phasing is changed due to jumpers or other reasons.<br/>If the attribute is missing three phases (ABC) shall be assumed.<br/>
Public UncefactUnitCode
  uncefactUnitCode
Details:
 
Public UnitMultiplier
  unitMultiplier
Details:
Notes: The unit multiplier of the measured quantity.<br/>
Public UnitSymbol
  unitSymbol
Details:
Notes: The unit of measure of the measured quantity.<br/>
Element Source Role Target Role
ACDCTerminal
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:
 
CalculationMethodHierarchy
Class  
Name: Measurement
Analog to which this calculation method hierarchy applies.
Name: CalculationMethodHierarchy
Calculation method hierarchy which applies to this analog.
Details:
 
ProtectiveActionAdjustment
Class «informative»
Name: Measurement
 
Name: ProtectiveActionAdjustment
 
Details:
The measurement is used to control the operation of an equipment.<br/>
Element Source Role Target Role
MeasurementCalculatorInput
Class «informative»
Name: MeasurementCalculatorInput
 
Name: Measurement
 
Details:
Measurement used as input to a calculation.<br/>
MeasurementAction
Class  
Name: MeasurementAction
 
Name: Measurement
 
Details:
 
Procedure
Class  
Name: Procedures
Measurements are specified in types of documents, such as procedures.
Name: Measurements
Document containing this measurement.
Details:
 
Asset
Class  
Name: Asset
 
Name: Measurements
 
Details:
 
PowerSystemResource
Class  
Name: PowerSystemResource
The power system resource that contains the measurement.
Name: Measurements
The measurements associated with this power system resource.
Details:
 
Location
Class  
Name: Locations
 
Name: Measurements
 
Details:
 
PinMeasurement
Class «informative»
Name: PinMeasurement
 
Name: Measurement
 
Details:
The Measurement that should be used in compare.<br/>
Object Type Connection Direction Notes
StringMeasurement Class Generalization From  
Accumulator Class Generalization From  
Analog Class Generalization From  
IdentifiedObject Class Generalization To  
Measurement Class Dependency From  
MktMeasurement Class Generalization From  
Discrete Class Generalization From