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Author Gagliardo, V. ♦ Pompili, M. ♦ Schifani, R.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1992
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Partial discharges ♦ Dielectric materials ♦ Temperature ♦ Minerals ♦ Epoxy resins ♦ Materials reliability ♦ Dielectrics and electrical insulation ♦ Shape ♦ Voltage ♦ Degradation
Abstract The authors report an experimental investigation carried out to obtain information on epoxy material performance under partial discharge (PD) activity for different temperature conditions. Some observations about the effect of filler mineral charges on the electrical behavior of epoxy resins are also reported. It is noted that PD activity and temperature play an important role in the life of the insulating materials, reducing noticeably the reliability of HV (high-voltage) systems. The use of a multichannel analysis allows a more detailed diagnosis of PD activity in the insulating materials. From 20 to 80 degrees C, it has been noted that the PDAD (PD amplitude distribution) shape changes and a number of the PDs of smaller amplitude increase in such a way as to produce a higher total charge transferred to the dielectric material. The increase of the total charge transferred to the dielectric materials due to the higher temperature and the voltage leads to a faster degradation of the material, reducing the useful life of the system.<<ETX>>
Description Author affiliation: Dipartimento di Ingegneria Elettrica, Palermo Univ., Italy (Gagliardo, V.)
ISBN 0780301293
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1992-06-22
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 199.55 kB
Page Count 5
Starting Page 171
Ending Page 175


Source: IEEE Xplore Digital Library