Experimental characterization of pre-strike arc duration of a MV-LBS using N2/CO2: influence of closing speed, pressure and mixing ratio
Year: 2025
Type: article
Abstract: Short-circuit current making in a medium voltage load-break switch using N2/CO2 is expected to result in longer pre-strike arcs compared to SF6, due to lower dielectric strength, leading to increased contact degradation. Measures to limit impact of pre-strike arc on the contact system are needed. This paper aims to experimentally investigate the influence of closing speed, filling pressure and mixing ratio on pre-strike arc duration towards increasing contact system life time.
Source: Plasma Physics and Technology
Authors: Manuel Castiñeira Suárez, Frederik Mingers, Willem Leterme, Martin Schaak, Kristian Ermeler
Institutions: RWTH Aachen University, Siemens (Germany)
Language: English
Topic: Vacuum and Plasma Arcs
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413622259