NDLI: Polypropylene for high voltage high frequency airborne applications

Content Provider	IEEE Xplore Digital Library
Author	Khachen, W. Laghari, J.R.
Copyright Year	1990
Description	Author affiliation: Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA (Khachen, W.; Laghari, J.R.)
Abstract	Polypropylene is characterized for airborne high-power applications under high-voltage, high-frequency conditions. The properties that are measured include the dielectric constant and dielectric loss (at electrical stresses of up to 40 V/ mu m) and the breakdown voltages at frequencies of up to 400 Hz. The aging characteristics of the film under these conditions were also determined. There is a slight decrease in the breakdown voltage of polypropylene as frequency is increased from 60 to 400 Hz. Also, life is reduced with an increase in frequency. This decrease is probably due to heat buildup in the insulating material caused by partial discharges and by dielectric losses. Dielectric properties show no change at low-voltage, high-frequency conditions. However, at high-field-stress, 60-Hz conditions, the dissipation factor shows an increase with an increase in electric field stress. This increase is most probably caused by partial discharges in voids and air bubbles of the insulating material. Based on the preliminary results obtained, polypropylene is suitable for low-stress, high-frequency airborne applications.<>
Starting Page	80
Ending Page	83
File Size	252969
Page Count	4
File Format	PDF
ISSN	1089084X
DOI	10.1109/ELINSL.1990.109713
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-06-03
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage Frequency Dielectric loss measurement Dielectric losses Dielectric constant Stress Dielectrics and electrical insulation Dielectric materials Partial discharges Dielectric measurements
Content Type	Text
Resource Type	Article

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