https://doi.org/10.1051/epjap/2020190222
Regular Article
Estimation of the power flux supplied by an electric arc to Ag-SnO2 electrodes based on cross-section observations of the melted zone
1
Laboratoire GeePs, UMR CNRS-CentraleSupelec 8507, UPMC et Université Paris-Sud, 11 rue Joliot-Curie, 91192 Gif sur Yvette Cedex, France
2
MINES ParisTech, PSL University, Centre des Matériaux, CNRS UMR 7633, BP 87, 91003 Evry Cedex, France
3
Strategy & Innovation, Schneider Electric, 31 rue F. Quesnay, 38320 Eybens, France
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
26
July
2019
Received in final form:
5
December
2019
Accepted:
3
February
2020
Published online: 17 April 2020
Abstract
A method is proposed to estimate the characteristics of the power flux supplied to an anode and a cathode in Ag-SnO2 submitted to an AC electric arc with a maximal value of the arc current intensity about 400–500 A and an arc duration about 4–5 ms. It is based on the one hand on the observation by optical microscopy and Electron BackScatter Diffraction (EBSD) of the area melted by the arc, thus making it possible to evaluate the depth and radius melted, and on the other hand on a thermal modelling allowing to estimate an equivalent voltage (proportionality coefficient between the intensity of the arc current and the received power) and the power flux surface density.
© A. Fouque et al., EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
