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Comparative study on conductivity and moisture content using polarization and depolarization current (PDC) test for HV insulation

Mohd Jamail, Nor Akmal and Mohamed Piah, Mohamed Afendi and Muhamad, Nor Asiah and Kamarudin, Qamarul Ezani (2014) Comparative study on conductivity and moisture content using polarization and depolarization current (PDC) test for HV insulation. Transactions on Electrical and Electronic Mterials, 15 (1). pp. 7-11. ISSN 1229-7607

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Abstract

The Polarization and Depolarization Current (PDC) measurement is an efficient and effective diagnostic technique based on time domain measurement, for evaluating the high voltage insulation condition. This paper presents a review and comparison results from several published papers on the application of the PDC method to finding the conductivity and moisture content of various types of insulators. For solid insulation, the study was focused on cable insulation, electric machine stator insulation, and paper insulator in transformer insulation with different conditions. For liquid insulation, the review and comparison was done on biodegradable and mineral transformer oils, with fresh oil condition, and aged condition. The results from previous researchers tests were complied, analyzed and discussed, to evaluate the application of the PDC method to monitor the conductivity and moisture of HV equipment insulation systems. From the review results, the PDC technique successfully gives an indication of the conductivity and moisture level of high voltage insulation.

Item Type: Article
Uncontrolled Keywords: polarization and depelarization current; conductivity; moisture content; i-fVinsulations
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 07 Sep 2014 07:55
Last Modified: 07 Sep 2014 07:55
URI: http://eprints.uthm.edu.my/id/eprint/5670
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