The University of Southampton
University of Southampton Institutional Repository

Electrode processes and arc form in miniature circuit breakers

McBride, J.W., Jeffery, P.A. and Weaver, P.M. (2002) Electrode processes and arc form in miniature circuit breakers In Proceedings of the Forty-Fourth IEEE Holm Conference on Electrical Contacts, 1998. Institute of Electrical and Electronics Engineers., pp. 93-99. (doi:10.1109/HOLM.1998.722433).

Record type: Conference or Workshop Item (Paper)


The electric arc in current limiting circuit breakers is often depicted as a well defined region of current flow. During a short circuit fault the current through the arc in a current limiting miniature circuit breaker can range from 100 to 10000 Amps. This range of current, along with varying electrode conditions, will lead to variation in both the form of the arc and the processes occurring at the electrodes. These electrode processes, in particular the emission mechanism at the cathode root, dominate the mobility characteristics of the arc. Previously proposed electrode processes are reviewed and the interaction of the mechanisms discussed. Using data recorded on a high speed Arc Imaging System observations about the arc behaviour at different intervals of the arc event are related to possible electrode processes. The variation of arc form in miniature circuit breakers is also discussed.

Full text not available from this repository.

More information

Published date: 6 August 2002
Venue - Dates: Forty-Fourth IEEE Holm Conference on Electrical Contacts, 1998-10-26 - 1998-10-28


Local EPrints ID: 21243
ISBN: 0780349253
PURE UUID: 9b56a4ef-919b-40f5-911f-f077ecbc9e88

Catalogue record

Date deposited: 06 Dec 2006
Last modified: 17 Jul 2017 16:27

Export record



Author: J.W. McBride
Author: P.A. Jeffery
Author: P.M. Weaver

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.