Xuliang Chen, Junna Li, Guangxi Cui, Chunan Li, Qisheng Li, Jianwei Ge. Experimental research on influencing factors of surface flashover of coaxial insulators in high-pressure SF6 under nanosecond pulse[J]. High Power Laser and Particle Beams, 2023, 35(3): 035003
- High Power Laser and Particle Beams
- Vol. 35, Issue 3, 035003 (2023)
Fig. 1. Specimen of the basin insulator materials
Fig. 2. Schematic cross-section of the basin-shaped insulator sample and electrode structure
Fig. 3. Schematic diagram of the experimental platform
Fig. 4. Full-wave pulse voltage waveforms of the three leading edges on the insulator sample
Fig. 5. Schematic diagram of the structure of the insulator switch used together
Fig. 6. Voltage waveforms of the three frontiers on the insulator sample
Fig. 7. Typical flashover voltage and current waveform
Fig. 8. Flashover voltages of basin-shaped and disc-shaped insulator samples under three full-wave pulse voltages
Fig. 9. Cloud diagram of electric field distribution of basin-shaped and disc-shaped insulator samples
Fig. 10. Electric field distribution along the plane of the insulator sample in the tangential and normal directions
Fig. 11. Comparison of flashover voltage before and after electric field improvement of basin-shaped insulators
Fig. 12. Relationship between flashover voltage and waveform front time of basin-shaped insulators
Fig. 13. Comparison of flashover voltages of basin-shaped insulators under pulsed full-wave and pulsed frontier voltages
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Table 1. Comparison of flashover voltages of insulators with different materials
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