An experimental model of a high-current nanosecond controlled multi-gap discharger of axial design, directed to switching coaxial lines with charging voltage up to 700 kV, was developed. Fig. 1 shows the design of the discharger. The external diameter of the spark gap is 300 mm, the length is 250 mm.
Fig. 1. Gas discharger of axial design.
1 - potential electrode, 2 - zero electrode, 3 - external dividing chain, 4 - internal dividing chain, 5 - control input, 6 - body.
Fig. 2. Oscillogram of the discharge current of the forming line switched by the discharger (switching frequency mode).
1 is the discharge current, 2 is the trigger pulse.