Research Article | OPEN ACCESS
Effect of Asymmetrical Edge Disconnection on Equivalent Series Resistance of Metalized Polypropylene Capacitors
J. Sivakumar, S. Usa and M.A. Panneerselvam
Department of Electrical Engineering, College of Engineering, Anna University, Chennai, India
Research Journal of Applied Sciences, Engineering and Technology 2014 3:639-644
Received: June 19, 2013 | Accepted: July 05, 2013 | Published: January 20, 2014
Abstract
In order to investigate the effect of asymmetrical partial edge disconnection on the Equivalent Series Resistance (ESR) of Metalized polypropylene capacitors an experimental study has been made. Theoretical analysis made using PSPICE simulation package reveals that electrode resistance of individual turn rises from 10 to 30% depending on the location of the turn. This rise is not measureable at all the frequencies as ESR is frequency dependent and it includes resistance due to electrodes and dielectric losses. Metalized polypropylene capacitors were made with partial edge disconnection at one end (asymmetrical) with different magnitudes of edge disconnection by masking during the process of zinc spraying. Measurements of ESR have been made in a wide range of frequencies from 20 Hz to 50 MHz and the theoretical results are validated through the experimental data. A short time step stress test was conducted on the capacitors, which can be further developed as a type test to identify the capacitors with partial edge disconnection.
Keywords:
Asymmetrical edge disconnection, current density, dissipation factor, Metalized Polypropylene Film (MPPF), schooping,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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