Experimental studies of microarcs between copper electrodes in air

2025/09/10 by Jonas Karl Cristian Ballentin, Margarita Baeva, Dirk Uhrlandt · 1 voice
Engineering · Environmental Science · Materials Science · #High voltage insulation and dielectric phenomena #Smart Materials for Construction #Surface Roughness and Optical Measurements

paper · pdf · doi:10.14311/ppt.2025.2.95

openalex publication_date 2025/09/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/22

Abstract

Low direct current arcs generated between Cu electrodes in atmospheric pressure air are investigated in relation to low-voltage switching. Electrical and optical measurements and high-speed imaging give insight into the dynamics of the arc. Side-on spectroscopy with a grating spectrometer and suitable optical imaging delivers spatially resolved spectral emission coefficients of three emission lines of the Cu atom. The experimental findings are compared with results from modelling.

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