NDLI: The effect of insulating barriers on AC breakdown voltage in inhomogeneous field

Content Provider	IEEE Xplore Digital Library
Author	Kara, A. Onal, E. Kalenderli, O. Mardikyan, K.
Copyright Year	2006
Description	Author affiliation: Fac. of Electr. & Electron., Istanbul Tech. Univ. (Kara, A.; Onal, E.; Kalenderli, O.; Mardikyan, K.)
Abstract	In this study, the effect of insulating barriers on the breakdown voltage of air in inhomogeneous field is observed. Tests are conducted in order to measure the 50 Hz AC breakdown voltage of small air gaps (up to 50 mm) formed by hemispherically capped rod-plane electrodes with an insulating barrier between them. Energized rod and grounded plane gaps are studied with the flat insulating barriers that have three different diameters. The results of the test series show how the breakdown voltage varies with the distance between the electrodes, the size and the material of the barrier, the relative position of the electrodes and the barrier between them. As a result, all three materials show nearly same effect when they are used as a barrier, the breakdown voltage varies due to the size of the barriers and the maximum flashover voltages are observed when the barriers are positioned at the nearest point to the rod electrode and the small sized barriers become effective only in very small air gaps
Sponsorship	IEEE Region 8 IEEE Spain Sect
Starting Page	1206
Ending Page	1208
File Size	164076
Page Count	3
File Format	PDF
ISBN	1424400872
DOI	10.1109/MELCON.2006.1653318
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-16
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Power transformer insulation Air gaps Nonuniform electric fields Dielectrics and electrical insulation Oil insulation Breakdown voltage Dielectric breakdown Materials testing Flashover
Content Type	Text
Resource Type	Article

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