High Power Laser and Particle Beams, Volume. 36, Issue 11, 115003(2024)
Operating characteristics of electrically triggered vacuum surface flashover switch
Figures & Tables(10)
Fig. 1. Electrically triggered vacuum surface flashover switch structures
Fig. 5. Typical waveforms of trigger gap pulse breakdown voltage testing
Fig. 6. Variation curves of pulse withstand voltage with times for four different triggering media
Fig. 7. Comparison of DC withstand voltage between quartz and alumina ceramics
Table 1. Comparison of experimental results between different switch structures
View tableView in ArticleTable 1. Comparison of experimental results between different switch structures
td/ns tdj/ns tdmax/ns tdmin/ns ton/ns tonj/ns tonmax/ns tonmin/ns Ub/kV radial chip structure S1 176 15.1 213 136 95.9 3.49 102 85 40 axial bulk structure S2 68.8 6.33 81.6 57.6 20.5 1.25 24.0 18.4 50
Table 2. Mean and standard deviation statistics of switch trigger gap pulse withstand voltages for different triggering media
View tableView in ArticleTable 2. Mean and standard deviation statistics of switch trigger gap pulse withstand voltages for different triggering media
trigger times Vt/kV Vtj/kV quartz AlN Si3N4 BaO3Ti quartz AlN Si3N4 BaO3Ti 1～100 22.25 10.80 20.81 12.69 3.15 2.77 3.18 0.40 101～200 22.45 9.88 19.55 12.27 2.60 0.64 2.38 0.41 201～300 22.24 8.79 18.93 12.18 2.34 0.66 2.13 0.37 301～400 22.38 8.71 18.66 12.37 2.24 0.42 1.75 0.37 401～500 21.58 8.69 18.38 12.15 1.98 0.44 1.37 0.32 501～600 − 8.65 17.15 − − 0.45 0.63 − all 22.18 9.41 19.11 12.30 2.51 1.67 2.55 0.42
Table 3. Performance parameters of switches with different trigger polarity (test switch: S2 after optimization)
View tableView in ArticleTable 3. Performance parameters of switches with different trigger polarity (test switch: S2 after optimization)
td/ns tdj/ns tdmax/ns tdmin/ns ton/ns tonj/ns tonmax/ns tonmin/ns Vt/kV pre-optimization (negative) 176 15.1 213 136 95.9 3.49 102 85 20 post-optimization (positive) 78.78 6.06 89.5 66 23.53 0.51 24.5 22.5 2.55 post-optimization (negative) 84.71 18.04 110 50.5 24.16 1.88 30 22.5 2.64
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Yingjie Fu, Luokang Dong, Shenyi Qin, Mengbing He, Mingtian Ye, Zhen Wang, Zhenghong Li. Operating characteristics of electrically triggered vacuum surface flashover switch[J]. High Power Laser and Particle Beams, 2024, 36(11): 115003
Paper Information
Category: Vacuum Switches
Received: Sep. 13, 2024
Accepted: Oct. 8, 2024
Published Online: Jan. 8, 2025
The Author Email: Mengbing He (pulhmb@hust.edu.cn)
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