Volume 5 Number 1 (Feb. 2013)
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IJCEE 2013 Vol.5(1): 133-136 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2013.V5.680

Leakage Current Analysis and FFT Calculation on Polluted Polymer Insulator

I. A. Joneidi, A. A. Shayegani, H. Mohseni, S. Mohseni, and M. Jebeli-Javan

Abstract—In case of wet pollution, pollution layer create an appropriate path for leakage current and increasing of this pollution leads to more values of this leakage current. Therefore for better recognition of insulator changing process from normal state to fault outbreak, studying of leakage current and artificial aging models is necessary. In this paper, the experimental test results on polymer insulator with voltage of 20 KV have been shown. Artificial aging on insulators has been done using solid layer methods according to IEC60507 standard. Leakage current waveforms during the experimental studies were measured. Normally fast Fourier transform (FFT) method used to find the harmonic spectrum in the leakage currents. Three states of analysis are considered. In the first stage, it is done with nominal voltage and without arc. In the second state, it is done in presence of dry band arcing and corona discharge and in the last case, continues arc is investigated and in each stage harmonic analysis is performed. It is observed that in last stage the 3rd harmonic components increase rather than two previous stages.

Index Terms—Artificial aging, leakage current, polymer insulator, solid layer pollution.

The authors are with High Voltage Research Center, School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran. (E-mail:i.ahmadi@ut.ac.ir; shayegani@ut.ac.ir; mohseni@ut.ac.ir;sal44@yahoo.com; morvarid_javan@yahoo.com).

Cite: I. A. Joneidi, A. A. Shayegani, H. Mohseni, S. Mohseni, and M. Jebeli-Javan, "Leakage Current Analysis and FFT Calculation on Polluted Polymer Insulator," International Journal of Computer and Electrical Engineering vol. 5, no. 1, pp. 133-136, 2013.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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