Fluid Mechanics and Acoustics Laboratory - UMR 5509

LMFA - UMR 5509
Laboratoire de Mécanique des Fluides et d’Acoustique
Lyon
France


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Electric arc dynamics

Electric arc dynamics

Daniel Henry, Denis Jeandel, Julian Scott
In order to improve efficiency of the current breaking devices and in the frame of a partnership with Schneider Electric company, we have developed (...)

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Initiation of the arc

Initiation of the arc: isotherms in the vertical longitudinal plane with a zoom on
the tip of the mobile electrode.
Initiation of the arc: contours of the pressure in the vertical longitudinal (...)

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Development of the arc

Development of the arc: isotherms in the horizontal plane at mid-height between the cathode and the mobile electrode.
Development of the arc: isotherms in the vertical longitudinal (...)

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Commutation of the arc

Commutation of the arc: contours of the current density in the vertical longitudinal plane just before (t=2.5ms) and after (t=3ms) the commutation.

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