: Public Class
Created: 05/07/2009 11:18:53
Modified: 11/02/2012 03:26:09
Project:
Advanced:
A conducting connection point of a power transformer. It corresponds to a physical transformer winding terminal.  In earlier CIM versions, the TransformerWinding class served a similar purpose, but this class is more flexible because it associates to terminal but is not a specialization of ConductingEquipment.<br/>
Attribute
Public PerCent
  bmagSat
Details:
Notes: Core shunt magnetizing susceptance in the saturation region.<br/><br/>
Public Integer
  endNumber
Details:
Notes: Number for this transformer end, corresponding to the end's order in the power transformer vector group or phase angle clock number.  Highest voltage winding should be 1.  Each end within a power transformer should have a unique subsequent end number.   Note the transformer end number need not match the terminal sequence number.<br/><br/>
Public Boolean
  grounded
Details:
Notes: (for Yn and Zn connections) True if the neutral is solidly grounded.<br/>
Public Voltage
  magBaseU
Details:
Notes: The reference voltage at which the magnetizing saturation measurements were made<br/><br/>
Public PerCent
  magSatFlux
Details:
Notes: Core magnetizing saturation curve knee flux level.<br/><br/>
Public Resistance
  rground
Details:
Notes: (for Yn and Zn connections) Resistance part of neutral impedance where 'grounded' is true.<br/>
Public Reactance
  xground
Details:
Notes: (for Yn and Zn connections) Reactive part of neutral impedance where 'grounded' is true.<br/>
Element Source Role Target Role
BaseVoltage
Class  
Name: TransformerEnds
Transformer ends at the base voltage. This is essential for PU calculation.
Name: BaseVoltage
Base voltage of the transformer end. This is essential for PU calculation.
Details:
 
PhaseTapChanger
Class  
Name: TransformerEnd
Transformer end to which this phase tap changer belongs.
Name: PhaseTapChanger
Phase tap changer associated with this transformer end.
Details:
 
RatioTapChanger
Class  
Name: TransformerEnd
Transformer end to which this ratio tap changer belongs.
Name: RatioTapChanger
Ratio tap changer associated with this transformer end.
Details:
 
Terminal
Class  
Name: TransformerEnd
All transformer ends connected at this terminal.
Name: Terminal
Terminal of the power transformer to which this transformer end belongs.
Details:
 
TransformerStarImpedance
Class  
Name: TransformerEnd
All transformer ends having this star impedance.
Name: StarImpedance
(accurate for 2- or 3-winding transformers only) Pi-model impedances of this transformer end. By convention, for a two winding transformer, the full values of the transformer should be entered on the high voltage end (endNumber=1).
Details:
 
Element Source Role Target Role
WindingInsulation
Class «informative»
Name: FromWindingInsulations
 
Name: FromWinding
 
Details:
 
WindingInsulation
Class «informative»
Name: ToWindingInsulations
 
Name: ToWinding
 
Details:
 
TransformerMeshImpedance
Class  
Name: ToMeshImpedance
All mesh impedances between this 'from' and other 'to' transformer ends.
Name: ToTransformerEnd
All transformer ends this mesh impedance is connected to.
Details:
 
TransformerMeshImpedance
Class  
Name: FromMeshImpedance
All mesh impedances between this 'to' and other 'from' transformer ends.
Name: FromTransformerEnd
From end this mesh impedance is connected to. It determines the voltage reference.
Details:
 
TransformerCoreAdmittance
Class  
Name: CoreAdmittance
Core admittance of this transformer end, representing magnetising current and core losses. The full values of the transformer should be supplied for one transformer end only.
Name: TransformerEnd
All transformer ends having this core admittance.
Details:
 
Object Type Connection Direction Notes
TransformerTankEnd Class Generalization From  
TransformerEnd Class Dependency From  
PowerTransformerEnd Class Generalization From  
IdentifiedObject Class Generalization To