: Public Class
Created: 04/11/2010 13:27:08
Modified: 09/03/2016 16:33:55
Project:
Advanced:
A PowerTransformerEnd is associated with each Terminal of a PowerTransformer.<br/>The impedance values r, r0, x, and x0 of a PowerTransformerEnd represents a star equivalent as follows<br/>1) for a two Terminal PowerTransformer the high voltage (TransformerEnd.endNumber=1) PowerTransformerEnd has non zero values on r, r0, x, and x0 while the low voltage (TransformerEnd.endNumber=0) PowerTransformerEnd has zero values for r, r0, x, and x0.<br/>2) for a three Terminal PowerTransformer the three PowerTransformerEnds represents a star equivalent with each leg in the star represented by r, r0, x, and x0 values.<br/>3) For a three Terminal transformer each PowerTransformerEnd shall have g, g0, b and b0 values corresponding the no load losses distributed on the three PowerTransformerEnds. The total no load loss shunt impedances may also be placed at one of the PowerTransformerEnds, preferably the end numbered 1, having the shunt values on end 1 is the preferred way.<br/>4) for a PowerTransformer with more than three Terminals the PowerTransformerEnd impedance values cannot be used. Instead use the TransformerMeshImpedance or split the transformer into multiple PowerTransformers.<br/>
Attribute
Public Susceptance
  b
Details:
Notes: Magnetizing branch susceptance (B mag).  The value can be positive or negative.<br/><br/>
Public Susceptance
  b0
Details:
Notes: Zero sequence magnetizing branch susceptance.<br/><br/>
Public WindingConnection
  connectionKind
Details:
Notes: Kind of connection.<br/><br/>
Public Conductance
  g
Details:
Notes: Magnetizing branch conductance.<br/><br/>
Public Conductance
  g0
Details:
Notes: Zero sequence magnetizing branch conductance (star-model).<br/><br/>
Public Integer
  phaseAngleClock
Details:
Notes: Terminal voltage phase angle displacement where 360 degrees are represented with clock hours. The valid values are 0 to 11. For example, for the secondary side end of a transformer with vector group code of 'Dyn11', specify the connection kind as wye with neutral and specify the phase angle of the clock as 11.  The clock value of the transformer end number specified as 1, is assumed to be zero.  Note the transformer end number is not assumed to be the same as the terminal sequence number.<br/><br/>
Public Resistance
  r
Details:
Notes: Resistance (star-model) of the transformer end.<br/>The attribute shall be equal or greater than zero for non-equivalent transformers.<br/>
Public Resistance
  r0
Details:
Notes: Zero sequence series resistance (star-model) of the transformer end.<br/><br/>
Public ApparentPower
  ratedS
Details:
Notes: Normal apparent power rating.<br/>The attribute shall be a positive value. For a two-winding transformer the values for the high and low voltage sides shall be identical. <br/>
Public Voltage
  ratedU
Details:
Notes: Rated voltage: phase-phase for three-phase windings, and either phase-phase or phase-neutral for single-phase windings.<br/>A high voltage side, as given by TransformerEnd.endNumber, shall have a ratedU that is greater or equal than ratedU for the lower voltage sides.<br/>
Public Reactance
  x
Details:
Notes: Positive sequence series reactance (star-model) 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
PowerTransformer
Class  
Name: PowerTransformer
The power transformer of this power transformer end.
Name: PowerTransformerEnd
The ends of this power transformer.
Details:
 
Object Type Connection Direction Notes
PowerTransformerEnd Class Dependency From  
TransformerEnd Class Generalization To