: Public Class
Created: 28/05/2009 12:17:23
Modified: 06/07/2011 08:39:09
Project:
Advanced:
Transformer star impedance (Pi-model) that accurately reflects impedance for transformers with 2 or 3 windings. For transformers with 4 or more windings, you must use TransformerMeshImpedance class.<br/>For transmission networks use PowerTransformerEnd impedances (r, r0, x, x0, b, b0, g and g0).<br/><br/>
Attribute
Public Resistance
  r
Details:
Notes: Resistance of the transformer end.<br/><br/>
Public Resistance
  r0
Details:
Notes: Zero sequence series resistance of the transformer end.<br/><br/>
Public Reactance
  x
Details:
Notes: Positive sequence series reactance of the transformer end.<br/><br/>
Public Reactance
  x0
Details:
Notes: Zero sequence series reactance of the transformer end.<br/><br/>
Element Source Role Target Role
TransformerEnd
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:
 
TransformerEndInfo
Class  
Name: TransformerEndInfo
Transformer end datasheet used to calculate this transformer star impedance.
Name: TransformerStarImpedance
Transformer star impedance calculated from this transformer end datasheet.
Details:
 
Object Type Connection Direction Notes
IdentifiedObject Class Generalization To