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Evolution mechanism of ultraviolet and electrical phenomena induced by protrusion discharge in GIS Cover

Evolution mechanism of ultraviolet and electrical phenomena induced by protrusion discharge in GIS

Open Access
|Sep 2020

Abstract

To improve the sensitive and reliability of condition monitoring in gas insulated switchgear (GIS), discharge perception system applied to GIS insulators protrusion discharge based on single ultraviolet photon is built. Step method is used to inspire the discharges of different severity, based on which, the regression relationship of ultraviolet (UV) signal and electrical signal are studied, and the perception mechanism of UV signal in different severity of discharges is analyzed. The study indicates that, the development of protrusion discharge in GIS can be divided into four stages, and there is no positive correlation between the number of ultraviolet photons caused by discharge radiation and insulation deterioration level, but related to the diffusion, migration and recombination of charged particles, then UV optical method for quantitative monitoring of discharge in each stage is provided, which provide a new method for quantitative measurement of GIS insulator discharge.

DOI: https://doi.org/10.2478/jee-2020-0036 | Journal eISSN: 1339-309X | Journal ISSN: 1335-3632
Language: English
Page range: 268 - 273
Submitted on: Jul 6, 2020
Published on: Sep 22, 2020
Published by: Slovak University of Technology in Bratislava
In partnership with: Paradigm Publishing Services
Publication frequency: 6 issues per year

© 2020 Fei Du, Wenzhi Chang, Jiangang Bi, Shuai Yuan, Xinghui Zhang, Yanpeng Gong, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.