Measurement of harmonic losses in transformers supplying nonsinusoidal load currents

Author

Peretto, L. ; Sasdelli, R. ; Serra, G.

Author_Institution

Dipt. di Ingegneria Elettrica, Univ. degli Studi di Bologna, Italy

Volume

2

fYear

1999

fDate

1999

Firstpage

982

Abstract

The spread of the load control techniques based on power electronics is causing the increase of harmonic losses in power distribution systems. A digital method for the evaluation of these losses in power transformers, which only requires measurements taken at the transformer output terminals, is discussed. The accuracy of the method, along with the performance of a VI-based instrument implementing it, are also discussed. The results of some experimental work are reported

Keywords

harmonic distortion; loss measurement; power transformer testing; virtual instrumentation; active power; digital method; harmonic distortion; harmonic losses measurement; load control techniques; nonsinusoidal load currents; power distribution systems; power transformers; transformer output terminals; uncertainty contributions; virtual instrument performance; Circuits; Current measurement; Current supplies; Loss measurement; Power electronics; Power measurement; Power system harmonics; Transducers; Transformers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE

Conference_Location

Venice

ISSN

1091-5281

Print_ISBN

0-7803-5276-9

Type

conf

DOI

10.1109/IMTC.1999.777008

Filename

777008