Fig. 1. Circuit schematic for vacuum surface flashover switch test platform

Fig. 2. Sketch map of vacuum surface flashover switch

Fig. 3. DC voltage hold-off characteristic of vacuum surface flashover switch

Fig. 4. Waveforms of vacuum surface flashover switch in operation

Fig. 5. Time delay of vacuum surface flashover switch in 500 shots

Fig. 6. Influence of switch operation voltage on open time t_on, delay t_d and jitter

Fig. 7. Surface morphology of the switch after ～2300 shots