Commutation of lightning impulse by multiarc erosive radial-slotted discharge

The non-stationary mode of radial-slotted erosive discharge was considered. The existence condition of the relatively steady multiarc regime has been found. Experimentally it has been shown that this discharge has been corresponding to the required condition at the sufficiently large current. The oscillograms of commutation of lightning impulse on the simulative test facility with the equivalent of a high-voltage transmission line are presented. The obtained results indicate the ability of erosive discharge, when using within the framework of the complex lightning protection facility, to fast commutation of lightning impulses at the level of rated current