Fig. 1. Construction of switch

Fig. 2. Electrical field intensity distributions both between the electrodes and near the trigger pole (elliptical end face)

Fig. 3. Electrical field intensity distributions both between the electrodes and near the trigger electrode (fillet end face)

Fig. 4. Distribution of electrical field intensity when the electrical potential of positive and negative high voltage poles is not uniform

Fig. 5. Testing platform for switch performance parameters

Fig. 6. Relationship between the self-breakdown voltage of the switch and the pneumatic pressure of switch

Fig. 7. Experimental results of self-breakdown at 0.32 MPa

Fig. 8. Experimental results of trigger discharge

Fig. 9. Switch electrodes after self-breakdown experiment

Fig. 10. Switch electrodes after trigger discharge experiment

Fig. 11. Experimental platform and results of switching high-current assessment