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What if transformer T-model R values are the wrong temperature?

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siberhusky

Electrical
Joined
Jan 7, 2003
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29
Location
US
I understand how to translate positive sequence resistance values if they show up at a non-standard temperature on the test report.

But what if this happens with the provided zero sequence T-model test data? Section 9.5.3 of IEEE Std C57.12.90-2006 references Z1, Z2, and Z3 as "Constants" in the transformer zero sequence equivalent circuit. Can the temperature correction equations be applied to the R part of these Z values?



 
Never mind... I think I have it..

thx..
 
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