Title :
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
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.777008
