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Sparking potentials and ionisation coefficients in SF6

Maller, VN and Naidu, MS (1976) Sparking potentials and ionisation coefficients in SF6. In: Proceedings of the Institution of Electrical Engineers, 123 (1). 107-108 .

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Steady-state ionisation currents under uniform field conditions have been measured in SF6 over the range 110 ÿE/pÿ1000V cmÿ1torrÿ1 with gas pressures varying from 1 to 10 torr, at 20ðC. Sparking potentials Vs were also measured for a range 1ÿpdÿ20 torr-cm. Townsend's primary ionisation (ÿ/p) and electron-attachment (ÿ/p) coefficients were found to depend on E/p only. The values of secondary-ionisation coefficient (ÿ) were also determined over the range 140ÿE/pÿ600 V cmÿ1 torrÿ1. Measurements of Vs of SF6 have shown that the deviations from Paschen's law rise up to ñ3.5% at values of pd near the Paschen minimum.

Item Type: Journal Article
Publication: Proceedings of the Institution of Electrical Engineers
Publisher: IEEE
Additional Information: Copyright 1976 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.
Keywords: Electric breakdown of gases;Ionisation of gases;Sparks; Sulphur compou
Department/Centre: Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited: 05 Jan 2012 06:24
Last Modified: 05 Jan 2012 06:24
URI: http://eprints.iisc.ac.in/id/eprint/43056

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