Magnetohydrodynamic modeling of direct current arc interruption in a low-voltage switch

This paper proposes a magnetohydrodynamic arc model for direct current arc interruption simulation in a low-voltage switch with a contact bridge design. Arc voltage and current for the interruption of an initial current and voltage in the 800 V and 800 A range are compared and differences discussed between the simulation and an experiment. The arc is successfully quenched in the simulation, but discrepancies between simulation and experiment may be attributable to erosion modeling.