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An Investigation into the Dependence of the Arc Voltage on the Parameters of the Short-Circuit Current and the Design of the Vacuum Interrupter

Kulkarni, Sandeep and Rajan, Suresh and Andrews, Lalichan and Rajhans, Rupesh and Thomas, Joy M (2008) An Investigation into the Dependence of the Arc Voltage on the Parameters of the Short-Circuit Current and the Design of the Vacuum Interrupter. In: 23rd IEEE Intl Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV 2008), 15-19 Sept. 2008 , Bucharest.

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Abstract

The vacuum interrupter is extensively employed in the medium voltage switchgear for the interruption of the short-circuit current. The voltage across the arc during current interruption is termed as the arc voltage. The nature and magnitude of this arc voltage is indicative of the performance of the contacts and the vacuum interrupter as a whole. Also, the arc voltage depends on the parameters like the magnitude of short-circuit current, the arcing time, the point of opening of the contacts, the geometry and area of the contacts and the type of magnetic field. This paper investigates the dependency of the arc voltage on some of these parameters. The paper also discusses the usefulness of the arc voltage in diagnosing the performance of the contacts.

Item Type: Conference Paper
Additional Information: Copyright 2008 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: 17 Oct 2011 08:50
Last Modified: 17 Oct 2011 08:50
URI: http://eprints.iisc.ernet.in/id/eprint/40530

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