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2014 (Vol. 7, Issue: 3)
Article Information:

Effect of Asymmetrical Edge Disconnection on Equivalent Series Resistance of Metalized Polypropylene Capacitors

J. Sivakumar, S. Usa and M.A. Panneerselvam
Corresponding Author:  Sivakumar J. 

Key words:  Asymmetrical edge disconnection, current density, dissipation factor, Metalized Polypropylene Film (MPPF), schooping, ,
Vol. 7 , (3): 639-644
Submitted Accepted Published
June 19, 2013 July 05, 2013 January 20, 2014

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.
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  Cite this Reference:
J. Sivakumar, S. Usa and M.A. Panneerselvam , 2014. Effect of Asymmetrical Edge Disconnection on Equivalent Series Resistance of Metalized Polypropylene Capacitors.  Research Journal of Applied Sciences, Engineering and Technology, 7(3): 639-644.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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