Fig. 1. Multiple pulse group waveforms of lightning indirect effects in the standard

Fig. 2. Method of multi pulse group test

Fig. 3. Schematic diagram of crowbar circuit

Fig. 4. Single branch analog circuit diagram

Fig. 5. Single branch analog current

Fig. 6. Simulated waveform of time-sharing discharge output current

Fig. 7. Recharging process analysis circuit

Fig. 8. Switching current waveforms

Fig. 9. Recharging voltage and insulation recovery voltage

Fig. 10. Schematic diagram of device structure