A Novel Approach to Current Transformer Characterization in the Presence of Harmonic Distortion

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...

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Veröffentlicht in:	IEEE transactions on instrumentation and measurement 2009-05, Vol.58 (5), p.1446-1453
Hauptverfasser:	Cataliotti, A., Di Cara, D., Emanuel, A.E., Nuccio, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Current transformer (CT) Current transformers Distortion Distortion measurement Error analysis Errors Frequency response Harmonic distortion Harmonics Instruments Metering Pollution measurement Power quality Power system harmonics Testing Transducers Transformers Waveforms
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container_title	IEEE transactions on instrumentation and measurement
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creator	Cataliotti, A. Di Cara, D. Emanuel, A.E. Nuccio, S.
description	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.
doi_str_mv	10.1109/TIM.2008.2009419
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This result suggests that the frequency-response approach for the evaluation of CT performance under distorted waveform conditions is not a reliable method.</description><subject>Current transformer (CT)</subject><subject>Current transformers</subject><subject>Distortion</subject><subject>Distortion measurement</subject><subject>Error analysis</subject><subject>Errors</subject><subject>Frequency response</subject><subject>Harmonic distortion</subject><subject>Harmonics</subject><subject>Instruments</subject><subject>Metering</subject><subject>Pollution measurement</subject><subject>Power quality</subject><subject>Power system harmonics</subject><subject>Testing</subject><subject>Transducers</subject><subject>Transformers</subject><subject>Waveforms</subject><issn>0018-9456</issn><issn>1557-9662</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp90btLA0EQBvBFFIzRXrBZLLQ6nc2-yxBfAV9FrJe9zRy5kNzG3Yugf713RCwsbGaa3wx8fIScMrhiDOz1bPp0NQIw_bCC2T0yYFLqwio12icDAGYKK6Q6JEc5LwFAK6EHxI3pc_zAFR1vNin6sKBtpJNtSti0dJZ8k6uY1pjoZOGTDy2m-su3dWxo3dB2gfQ1YcYmII0VffBpHZs60Js6tzH17JgcVH6V8eRnD8nb3e1s8lA8vtxPJ-PHInDJ20JzZo2ZBwRhSoRy7ksVZAXSBjZXfaCgmUWNJQrwlnvwUgVrRp4HzlTJh-Ry97dL8b7F3Lp1nQOuVr7BuM3OKGsEA2Y7efGv5EKONLemg-d_4DJuU9OlcEYqo4USskOwQyHFnBNWbpPqtU-fjoHri3FdMa4vxv0U052c7U5qRPzlQgvLpeXfp8WJYg</recordid><startdate>20090501</startdate><enddate>20090501</enddate><creator>Cataliotti, A.</creator><creator>Di Cara, D.</creator><creator>Emanuel, A.E.</creator><creator>Nuccio, S.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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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.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TIM.2008.2009419</doi><tpages>8</tpages></addata></record>
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subjects	Current transformer (CT) Current transformers Distortion Distortion measurement Error analysis Errors Frequency response Harmonic distortion Harmonics Instruments Metering Pollution measurement Power quality Power system harmonics Testing Transducers Transformers Waveforms
title	A Novel Approach to Current Transformer Characterization in the Presence of Harmonic Distortion
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