A novel approach to current transformer characterization in the presence of harmonic distortion
Autor: | A.E. Emanuel, Salvatore Nuccio, Dario Di Cara, Antonio Cataliotti |
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Přispěvatelé: | Cataliotti, A, Di Cara, D, Emanuel, AE, Nuccio, S |
Jazyk: | angličtina |
Rok vydání: | 2009 |
Předmět: |
Engineering
Frequency response Electric current measurement Acoustics Electric transformer testing Errors Electric utilities Operation conditions Harmonic distortion Power companies Harmonic analysis Electric power transmission networks Power electronics Waveform Metering mode Current transformer (CT) Electrical and Electronic Engineering Instrumentation Non-sinusoidal currents Piezoelectric transducers Total harmonic distortion business.industry Electric power distribution current transformer frequency response harmonic distortion power system harmonics transducers Current transformer Ratio errors Transducer Electric instrument transformers Harmonic Power system harmonics Current (fluid) business Power transmission Settore ING-INF/07 - Misure Elettriche E Elettroniche Distorted waveforms |
Zdroj: | IEEE transactions on instrumentation and measurement 58 (2009): 1446–1453. doi:10.1109/TIM.2008.2009419 info:cnr-pdr/source/autori:A. Cataliotti, D. Di Cara, A. E. Emanuel, S. Nuccio,/titolo:A novel approach to current transformer characterization in the presence of harmonic distortion/doi:10.1109%2FTIM.2008.2009419/rivista:IEEE transactions on instrumentation and measurement/anno:2009/pagina_da:1446/pagina_a:1453/intervallo_pagine:1446–1453/volume:58 |
DOI: | 10.1109/TIM.2008.2009419 |
Popis: | The current transformer (CT) performance under distorted waveform conditions is usually characterized by means of the frequency-response test. In this paper, a new way to characterize CTs, closer to real operation conditions, is proposed. The harmonic phase-angle and ratio errors are measured using a nonsinusoidal current composed of fundamental and one harmonic with adjustable phase shift. The new method was tested by determining the performance of two metering class CTs commonly used by the Italian power company. The errors measured using the proposed approach are larger than the ones obtained with the frequency response. This result suggests that the frequency-response approach for the evaluation of CT performance under distorted waveform conditions is not a reliable method. © 2008 IEEE. |
Databáze: | OpenAIRE |
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