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Cathode root motion studies of high current arcs using an optical fiber array based imaging system

McBride, J.W and Cross, K.J (2010) Cathode root motion studies of high current arcs using an optical fiber array based imaging system In The Fifty-Sixth IEE Holm Conference on Electrical Contacts. Institute of Electrical and Electronics Engineers..

Record type: Conference or Workshop Item (Paper)

Abstract

An integrated portable measurement system is presented for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs. The system permits direct and nonintrusive measurement of arc light emission images with a capture rate of 1 million images per second (1MHz), and 8 bit intensity resolution. Novel software techniques are reported to visualise the arc motion and to measure arc trajectories. Results are presented on high current (2kA) discharge events where the electrode and arc runner surfaces are investigated using optical surface scanning methods; such that the position of the arc roots on the runner can be correlated to the measured trajectories. The results show evidence of the cathode arc root stepping along the arc runners

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More information

Published date: October 2010
Venue - Dates: conference; us; 2010-10-01, United States, 2010-10-01

Identifiers

Local EPrints ID: 166315
URI: http://eprints.soton.ac.uk/id/eprint/166315
PURE UUID: 9cc0ea7c-5e5d-4bc3-bcc1-d2ac0af581aa

Catalogue record

Date deposited: 29 Oct 2010 08:21
Last modified: 18 Jul 2017 12:25

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Contributors

Author: J.W McBride
Author: K.J Cross

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