Measurement of three-phase transformer derating and reactive power demand under nonlinear loading conditions

The measurement of real and apparent power derating of three-phase transformers is important for transformers feeding nonlinear loads. This paper presents a new digital data-acquisition method for measuring derating and reactive power demand of three-phase transformers under full or partial load con...

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Veröffentlicht in:IEEE transactions on power delivery 2006-04, Vol.21 (2), p.665-672
Hauptverfasser: Fuchs, E.F., Dingsheng Lin, Martynaitis, J.
Format: Artikel
Sprache:eng
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Zusammenfassung:The measurement of real and apparent power derating of three-phase transformers is important for transformers feeding nonlinear loads. This paper presents a new digital data-acquisition method for measuring derating and reactive power demand of three-phase transformers under full or partial load conditions. The accuracy requirements of the instruments employed (potential, current transformers, shunts, voltage dividers, optocouplers volt- and current meters) are addressed. Application examples demonstrate the usefulness of this new digital data-acquisition method.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2005.858744