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






RE: What if transformer T-model R values are the wrong temperature?
thx..