Higher harmonics influence on stability of arcing single phase-to-earth faults in 6−10 kV networks with arc-suppression coil

Conference: PESS 2021 - Power and Energy Student Summit
11/25/2021 - 11/26/2021 at online, University of Kassel

Proceedings: PESS 2021 – Power and Energy Student Summit

Pages: 6Language: englishTyp: PDF

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Kutumov, Yuri D.; Shadrilkova, Tatyana Yu.; Shuin, Vladimir A. (Automatic Control of Electrical Power Systems Department, Ivanovo State Power Engineering, Ivanovo State University, Russia)

This paper focuses on the research of steady-state earthing arc burning conditions in the context of influence of higher harmonic components in earth fault current. The criteria of arc burning stability and of single phase-to-earth fault transfer to phase-to-phase short circuit are offered in the paper. Calculation of the time period for which arcing single phase-to-earth fault transfers to phase-to-phase short circuit, was conducted. Also the root mean square value of residual fault current which makes steady-state earthing arc burning possible, was defined with the usage of COMSOL Multiphysics and PSCAD software. The obtained results can be used during development and research of single phase-toearth fault and thermal overload relay protection devices.