: Public Class
Created: |
04/11/2010 13:27:08 |
Modified: |
09/03/2016 16:33:55 |
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Project: |
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Author: |
T. Kostic |
Version: |
1.0 |
Phase: |
1.0 |
Status: |
Proposed |
Complexity: |
Easy |
Difficulty: |
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Priority: |
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Multiplicity: |
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Advanced: |
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UUID: |
{51A671B1-C546-4106-92F9-ED7C0305A2DB} |
Appears In: |
TapChanger, Transformer, DCIMTransformerModel |
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/>