THEORETICAL AND EXPERIMENTAL INVESTIGATION OF HIGH- CURRENT SOLID - STATE OPENING SWITCH BASED ON SOLID SOLUTION (V1-XCrx)203*

A state of activities on development of a new high-current opening switch with solid solution (V1-xCrx)203 is reviewed. A non-linear diffusion of a magnetic field into a substance, that undergoes a metalinsulator phase transition, as well as a development of thermomagnetic instability at the interphase boundary are studied analytically and numerically. A design of a high-current opening switch based on this solid solution is presented. Fabrication and fastening of breaking element, made of (V1-xCrx)203, are discussed. The first experimental results on a full-scale model of high-current solid-state opening switch are presented.