NDLI: On testing methodology of thermosetting dielectrics subjected to partial discharges: effect of temperature

Content Provider	IEEE Xplore Digital Library
Author	Campoccia, A. Schifani, R.
Copyright Year	1965
Abstract	Following the idea of performing tests in environmental conditions as similar as possible to the real working ones, many sets of partial discharge tests carried out on an epoxy resin within a broad environmental temperature range are reported on. Life tests were carried out on specimens with a calibrated, enclosed cavity and with embedded electrodes. In the tests performed at temperatures higher than ambient, an interesting strong decrease of data scattering resulted and emphasis on the subject is given. Actually, a strong and unexpected effect was found of the residual mechanical casting stress inside the resin on time-to-breakdown, depending on the difference between the material glass transition temperature and the temperature used in the test. Further data such as discharge amplitude distributions, discharge repetition rate and inception and extinction voltages at the investigated temperatures are also reported and commented upon.<>
Sponsorship	IEEE Waseda Univ Univ. Salford
Starting Page	419
Ending Page	426
Page Count	8
File Size	593936
File Format	PDF
ISSN	00189367
Volume Number	23
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-06-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectrics Performance evaluation Temperature distribution Temperature dependence Partial discharges Epoxy resins Life testing Electrodes Scattering Casting
Content Type	Text
Resource Type	Article
Subject	Engineering Electrical and Electronic Engineering

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