METHOD OF DETERMINING A CHARACTERISTIC OF A POWER TRANSFORMER AND A SYSTEM THEREFOR
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United States of America Patent
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Issued Date -
Jul 23, 2015
app pub date -
Jul 23, 2012
filing date -
Jul 23, 2012
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Abstract
A method of determining a characteristic of a power transformer is provided. The power transformer has an input current, an input voltage, an output current and an output voltage. The method comprises measuring the input current and a voltage difference between the input voltage and the output voltage of the power transformer while the power transformer is in use within a power distribution network. Information that is indicative of at least one property of a test locus plot from the measured input current and voltage difference of the power transformer is derived and compared to information that is indicative of at least one property of a reference locus plot associated with a reference power transformer. From the comparison, it is determined whether a characteristic of the power transformer differs from that of the reference power transformer.
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