Demagnetization of instrument transformers before calibration

Draxler, Karel; Styblíková, Renata

doi:10.2478/jee-2018-0066

.blurhash-client-img { display: none !important; }

Demagnetization of instrument transformers before calibration

Journal of Electrical Engineering

Volume 69 (2018): Issue 6 (December 2018)

By: Karel Draxler and Renata Styblíková

Open Access

|Dec 2018

Abstract

This paper describes the influence of magnetization of an instrument current transformer (ICT) core on ICT errors, and presents a procedure for demagnetizing an ICT. The dependence of ICT errors on the magnetization of the ICT core for different magnetic materials is given in the paper, together with a detailed procedure for ICT demagnetization. The results of experiments are summarized, and conclusions are drawn on when ICT demagnetization is necessary, and on how to prevent the destruction of an ICT due to its winding being punctured.

References

[1] L. Trigo, G. Aristoy, A. Santos and D. Slomovitz, On Site Calibration of Current Transformers, Proc. of I2MTC 2014, pp.1245-1246.10.1109/I2MTC.2014.6860943
Search in Google Scholar Back to article
[2] P. Mlejnek, P. Kaspar and K. Draxler, Measurement of Ratio Error and Phase Displacement of Current Transformers, EMSA ‘06 - 6th European Magnetic Sensors and Actuators Conference. Bilbao, University of the Basque Country, 2006, pp.39.
Search in Google Scholar Back to article
[3] K. Draxler and R. Styblikova, Effect of Magnetization on Instrument Transformers Errors, Journal of Electrical Engineering, 2010, 61(7/s), pp.50-53, ISSN 1335-3632.
Search in Google Scholar Back to article
[4] K. Draxler, M. Ulvr and R. Styblikova, Measuring of Remanent Factor on Current Transformers, Magnetic Measurements 2012, Bratislava, Slovak University of Technology, 2012, pp.35, ISBN 978-80-227-3770-8.
Search in Google Scholar Back to article
[5] J. Bauer, P. Ripka, K. Draxler and R. Styblikova, Demagnetization of Current Transformers Using PWM Burden, IEEE Transactions on Magnetics, 2015, 51(1), ISSN 0018-9464.10.1109/TMAG.2014.2356574
Search in Google Scholar Back to article
[6] K. Draxler and R. Styblikova, Use of Instrument Current Transformers in Wider Frequency Range, IMEKO - XV World Congress, Osaka 1999, Vol.VI - TC-8, TC-11, pp.113-117, ISBN 4-907764-05-7.
Search in Google Scholar Back to article

DOI: https://doi.org/10.2478/jee-2018-0066 | Journal eISSN: 1339-309X | Journal ISSN: 1335-3632

Journal RSS Feed

Language: English

Page range: 426 - 430

Submitted on: Feb 13, 2018

Published on: Dec 31, 2018

Published by: Slovak University of Technology in Bratislava

In partnership with: Paradigm Publishing Services

Publication frequency: 6 issues per year

Keywords:

instrument current transformer,

Related subjects:

Introductions and overviews,

Engineering, other

© 2018 Karel Draxler, Renata Styblíková, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Previous article Volume 69 (2018): Issue 6 (December 2018)Next article