2024/05/29 by Dirk Uhrlandt, Ammar Najam, Gregor Gött +4 · 1 voice
Engineering · Materials Science · #Welding Techniques and Residual Stresses #Non-Destructive Testing Techniques #Metal Alloys Wear and Properties
paper · pdf · doi:10.14311/ppt.2024.1.28
openalex publication_date 2024/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
The electrical characteristic of arcs sensitively depends on many factors like electrode material and shape, working gas and gas pressure. Arc sheath voltages and electrode resistance have to be considered in particular for shorter arcs. The arc voltage behaviour is important to the switching performance. But its knowledge also allows to estimate the power consumption of the arc and the heat transferred to the electrodes. Arc voltage models are easy to integrate in power grid simulations and benefitial for the design of arc power sources. Whereas specific arc voltage models are available meanwhile for many examples, there are still knowledge gaps for arcs in a wide range of parameters. This paper provides a review of recently developed electric arc models for high and low voltage switching as well as for welding with the focus on vacuum arcs, short arcs and arcs at low current.