Experimental investigation of short-time arc propagation recorded by high speed camera
1 : Technische Universität Braunschweig, Institute for High Voltage Technology and Electrical Power Systems
(elenia)
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The experimental research shows the behaviour of the short-time plasma in a narrow gap. The plasma is recorded by a high speed camera with 350 000 fps and an exposure time of 0,369 µs. Three geometries of narrow gaps are tested by a surge current formed as an 8/20 µs impulse, with amplitudes of 5 kA, 11 kA and 23 kA. The comparison of the different recorded plasmas shows differences by propagation of the plasma and voltage.