Variation of surface flashover voltage in SF6 with pressure

Pati, BB and Patra, KC and Naidu, MS (1994) Variation of surface flashover voltage in SF6 with pressure. In: IEEE Transactions on Dielectrics and Electrical Insulation, 1 (6). pp. 1175-1179.

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Abstract

Surface flashover characteristics of solid spacers in a rod-plane configuration have been investigated in SF6, at pressures to 400 kPa, for switching impulse voltages to determine the effect of spacer, spacer materials and polarity of applied impulses. The effect of spacer material on the flashover voltage is not significant. For negative polarity impulses, the influence of the spacer is also insignificant. But for positive polarity impulses, at pressures < 200 kPa, the spacer efficiency becomes > 1.0. On the other hand, at pressures > 200 kPa, the presence of spacer drastically reduces the flashover voltage of the system. At about atmospheric pressure also, the spacer efficiency in air has been found to be > 1.0, with the same electrode geometry.

Item Type:	Journal Article
Publication:	IEEE Transactions on Dielectrics and Electrical Insulation
Publisher:	IEEE
Additional Information:	Copyright 1994 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	16 Apr 2011 11:50
Last Modified:	05 Nov 2018 11:07
URI:	http://eprints.iisc.ac.in/id/eprint/36935

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