Pulsed positive corona streamers in air are studied by images obtained with an intensified CCD camera. Using a switched capacitor power supply, thin streamers are observed that branch. A power supply consisting of a 4-stage transmission line transformer gives pulses of much higher current to the same gap. In this case, the number of streamers is less, they are wider and they hardly branch. The current density is roughly 1 A/mm2 in both type of streamers

CWI
Modelling, Analysis and Simulation [MAS]
Multiscale Dynamics

van Veldhuizen, E.M, Briels, T.M.P, Grabowski, L.R, Pemen, A.J.M, & Ebert, U. (2005). Influences of the pulsed power supply on corona streamer appearance. Modelling, Analysis and Simulation [MAS]. CWI.