Some remarks regarding the test cells used for electric strength measurements

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:529560

Mazzanti, G; Montanari, G C ^[1]; Peruzzotti, F; Zaopo, A ^[2]

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1. Univ. of Bologna (Italy). Electrical Engineering Dept.
2. Pirelli Cavi S.p.A., Milano (Italy)

This paper deals with the influence of the test cell on the results of electric strength measurements performed on polymeric materials. Two different types of electrodes are considered, i.e., rods and Pseudo-Rogosky configurations, surrounded by different media, that is, oil, SF{sub 6}, and epoxy resin. An Ethylene-Propylene-Rubber (EPR)-based insulation was tested, in the form of flat specimens having different thickness. The results show that the scale and shape parameters of the two-parameter Weibull function employed to fit the breakdown data significantly changes when different specimen thickness, surrounding media and types of electrodes are used.

• OSTI ID: 529560
• Report Number(s): CONF-960614-; ISBN 0-7803-3531-7; TRN: IM9742%%49
• Resource Relation: Conference: 1996 IEEE international symposium on electrical insulation, Montreal (Canada), 16-19 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of Conference record of the 1996 IEEE international symposium on electrical insulation. Volume 2; PB: 477 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
MATERIALS TESTING
POLYMERS
ETHYLENE
PROPYLENE
RUBBERS
INSULATING OILS
SULFUR FLUORIDES
EPOXIDES
RESINS