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 |
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Hauptverfasser: | , , |
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. |
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ISSN: | 0885-8977 1937-4208 |
DOI: | 10.1109/TPWRD.2005.858744 |