Transformer Testing
AVTMTO3XX Rev 3 Sept 2013
39
8. The form will have a Demagnetized Transformer printed in the
nameplate section of the form to confirm that a Demag was performed
as the last operation of the transformer testing. Any additional testing of
the transformer will clear this message.
Temperature Correction
It may be necessary to convert the resistance measurements to values
corresponding to the reference temperature in the transformer test report.
To estimate the winding temperature at the time of measurement is important.
There are three things needed to get the resistance readings corrected, Winding
material, Winding temperature and corrected to temperature.
Material Selection
In the PowerDB form, a material selector for each side of the transformer is
available Nameplate section of the form.
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