Title :
Scaling of Conduction and Opening Stages of Microsecond Megaampere Plasma Opening Switches
Author_Institution :
Inst. of High Current Electron. SB RAS, Tomsk
Abstract :
This paper presents the analysis of experiments carried out on the GIT-4 and GIT-12 installations with microsecond megaampere plasma opening switches. Switches with axial and radial plasma injection are considered. It is shown that the conduction current, depending on the switch geometry and plasma density, is given by the magnetohydrodynamic scaling. The experimentally observed switch features in the opening stage can be explained in frame of the modified erosion model of switch opening.
Keywords :
electrical conductivity; inductive energy storage; plasma density; plasma magnetohydrodynamics; plasma switches; GIT-12 installation; GIT-4 installation; axial plasma injection; conduction current; magnetohydrodynamic scaling; microsecond megaampere plasma opening switches; modified erosion model; plasma density; radial plasma injection; switch features; switch geometry; switch opening stage; Bridge circuits; Energy exchange; Energy storage; Magnetic switching; Magnetohydrodynamics; Plasma density; Plasma measurements; Plasma properties; Switches; Voltage;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2007.4286533
