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Arc modelling for switching performance evaluation in low-voltage switching devices

Arc modelling for switching performance evaluation in low-voltage switching devices
Arc modelling for switching performance evaluation in low-voltage switching devices
Arc modelling is an efficient tool for predicting the switching performance of low-voltage switching devices (LVSDs)prior to testing real products. Moreover, it offers a valuable design aid in the improvement and optimization of LVSDs. This paper focuses on the investigation of evaluators that predict reignition phenomena and the numerical simulation of arc characteristics in LVSDs. It is found that the probability of reignition depends strongly on the ratio of the system voltage to the exit-voltage. The implemented 3-D arc model is based on conventional magnetohydrodynamics theory and takes into account the properties of air that vary with temperature and pressure, motion of the contact, arc root formation and plasma radiation. The simulated results are compared with experimental data to validate the proposed arc model and the voltage trends show agreement.
arc modelling, re-ignition, low-voltage switching devices, magnetohydrodynamics (MHD)
41-46
Herriot-Watt University
Shin, Dongkyu
1d29980e-4426-416b-858e-1b5c7734183b
Golosnoy, Igor O.
40603f91-7488-49ea-830f-24dd930573d1
McBride, John W.
d9429c29-9361-4747-9ba3-376297cb8770
Shin, Dongkyu
1d29980e-4426-416b-858e-1b5c7734183b
Golosnoy, Igor O.
40603f91-7488-49ea-830f-24dd930573d1
McBride, John W.
d9429c29-9361-4747-9ba3-376297cb8770

Shin, Dongkyu, Golosnoy, Igor O. and McBride, John W. (2016) Arc modelling for switching performance evaluation in low-voltage switching devices. In 28th International Conference on Electric Contacts: ICEC2016. Herriot-Watt University. pp. 41-46 .

Record type: Conference or Workshop Item (Paper)

Abstract

Arc modelling is an efficient tool for predicting the switching performance of low-voltage switching devices (LVSDs)prior to testing real products. Moreover, it offers a valuable design aid in the improvement and optimization of LVSDs. This paper focuses on the investigation of evaluators that predict reignition phenomena and the numerical simulation of arc characteristics in LVSDs. It is found that the probability of reignition depends strongly on the ratio of the system voltage to the exit-voltage. The implemented 3-D arc model is based on conventional magnetohydrodynamics theory and takes into account the properties of air that vary with temperature and pressure, motion of the contact, arc root formation and plasma radiation. The simulated results are compared with experimental data to validate the proposed arc model and the voltage trends show agreement.

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ICEC 2016_pp 41-46 03-03 Shin.pdf - Accepted Manuscript
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More information

Submitted date: 1 September 2015
Accepted/In Press date: 1 April 2016
e-pub ahead of print date: 6 June 2016
Published date: June 2016
Venue - Dates: 28th International Conference on Electric Contacts (ICEC2016), Edinburgh, United Kingdom, 2016-06-06 - 2016-06-09
Keywords: arc modelling, re-ignition, low-voltage switching devices, magnetohydrodynamics (MHD)
Organisations: EEE

Identifiers

Local EPrints ID: 399404
URI: http://eprints.soton.ac.uk/id/eprint/399404
PURE UUID: e7436b79-7773-4940-bd6d-1ab845bff566

Catalogue record

Date deposited: 15 Aug 2016 15:11
Last modified: 16 Dec 2019 17:30

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