E Doméjean et al 1997 J. Phys. D: Appl. Phys. 30 2132 doi:10.1088/0022-3727/30/15/003
E Doméjean, P Chévrier, C Fiévet and P Petit
Show affiliationsA hydrodynamic model for electrical arc modelling is used to study the interaction between the electrical arc and the sidewall in a low-voltage circuit breaker. The interaction model is based on an energy balance at the boundary. Comparisons of pressure, arc voltage and ablated mass between computations and experiments validate the model. The results confirm that the main mechanism at the sidewall is the photo-ablation. The model shows that, very rapidly, plastic vapours replace the air in the circuit breaker and are responsible for a residual conduction in the arc initiation region.
52.80.Mg Arcs; sparks; lightning; atmospheric electricity
52.40.Hf Plasma-material interactions; boundary layer effects
Issue 15 (7 August 1997)
Received 19 September 1996, in final form 9 May 1997
E Doméjean et al 1997 J. Phys. D: Appl. Phys. 30 2132
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