Field-time breakdown characteristics of air, N2, CO2, and SF6

Liu, Ting and Timoshkin, Igor V. and MacGregor, Scott J. and Wilson, Mark P. and Given, Martin J. and Bonifaci, Nelly and Hanna, Rachelle (2020) Field-time breakdown characteristics of air, N2, CO2, and SF6. IEEE Transactions on Plasma Science, 48 (10). pp. 3321-3331. ISSN 0093-3813 (https://doi.org/10.1109/TPS.2020.2991860)

[thumbnail of Liu-etal-IEEE-TOPS-2020-Field-time-breakdown-characteristics-of-air]
Preview
 Text. Filename: Liu_etal_IEEE_TOPS_2020_Field_time_breakdown_characteristics_of_air.pdf
Accepted Author Manuscript
Download (1MB)| Preview

Abstract

The dielectric performance of gases in insulation systems used in high voltage power and pulsed power applications is a subject of intensive theoretical and experimental investigations. Transient breakdown processes in gases stressed with short, high-field impulses, have been studied for many decades. However, there are still significant gaps in the understanding of the main breakdown processes and mechanisms associated with fast transient breakdown processes in gases. This knowledge is important for the optimization of gaseous insulating systems and for the coordination of gaseous insulation in power and pulsed power apparatuses. This information is also required for the development of gas-filled components such as circuit breakers and plasma closing switches. This article is aimed at the analysis of the field-time breakdown characteristics of air, N2, CO2, and SF6, using kinetic and drift-diffusion approaches. The kinetic approach is based upon the avalanche-to-streamer transition criterion, while the fluid drift-diffusion model requires self-consistent numerical solution of the continuity equations for charged species, and the Poisson equation for the electric field. The time to breakdown as a function of the applied field was obtained for all investigated gases. The obtained analytical results agree well with the experimental data reported in the literature, which suggests that both approaches can be used for insulation coordination, and for the development of gas-insulated power and pulsed power systems and components.

  • Item type:Article
    ID code:73017
    Dates:
    Date
    Event
    31 October 2020
    Published
    14 May 2020
    Published Online
    20 April 2020
    Accepted
    2019
    Submitted
    Notes:© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Science > Physics
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:02 Jul 2020 15:59
    Last modified:11 Apr 2024 01:51
    URI:https://strathprints.strath.ac.uk/id/eprint/73017
CORE (COnnecting REpositories)