One-dimensional fluid-Poisson model predicts voltage drops and thermal non-equilibrium in low-voltage arc systems, suggesting implications for power grid design.
Key Points
Voltage drops were notably observed in near-electrode regions, indicating significant changes in arc behavior.
Predictions showed thermal non-equilibrium and negative anode fall when small DC currents were applied.
The analysis utilized a one-dimensional fluid-Poisson model to simulate electrode distances below 1 mm in arc plasma.
Results from the simulated model showed a reasonable correlation with the experimental data from low-voltage DC hybrid switches.