• High Power Laser and Particle Beams
  • Vol. 31, Issue 12, 125003 (2019)
Mingkang Zhang1, Xuandong Liu1, Xi Shen2, and Chengjun Liang1
Author Affiliations
  • 1State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049,China
  • 2Chengdu Power Supply Company of State Grid Sichuan Electric Power Co, Ltd, Chengdu 610000, China
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    DOI: 10.11884/HPLPB201931.190243 Cite this Article
    Mingkang Zhang, Xuandong Liu, Xi Shen, Chengjun Liang. Discharge characteristics of a gas switch triggered by ejected plasma[J]. High Power Laser and Particle Beams, 2019, 31(12): 125003 Copy Citation Text show less
    Construction of the gas switch triggered by ejected plasma and structure of plasma ejection cavity
    Fig. 1. Construction of the gas switch triggered by ejected plasma and structure of plasma ejection cavity
    Schematic diagram of experimental apparatus
    Fig. 2. Schematic diagram of experimental apparatus
    waveform of unloaded trigger circuit
    Fig. 3. waveform of unloaded trigger circuit
    Waveform of trigger voltage and that of conduction current
    Fig. 4. Waveform of trigger voltage and that of conduction current
    Delay time and jitter of the switch with different switching coefficients
    Fig. 5. Delay time and jitter of the switch with different switching coefficients
    Delay time and jitter of the switch with different switching coefficient
    Fig. 6. Delay time and jitter of the switch with different switching coefficient
    Delay time and jitter of the switch with different gass type and pressures
    Fig. 7. Delay time and jitter of the switch with different gass type and pressures
    Delay time and jitter of the switch with different polarities of main voltage and trigger pulses
    Fig. 8. Delay time and jitter of the switch with different polarities of main voltage and trigger pulses
    Delay time and jitter of the switch with same polarities of main voltage and trigger pulses
    Fig. 9. Delay time and jitter of the switch with same polarities of main voltage and trigger pulses
    distance/mmmain voltage/kVdischarge number in 40 triggersdischarge probability/%
    5−740100
    13−203895
    15−223485
    18−272870
    Table 1. main voltage and discharge probability at different gap distance
    gaspressure/MPadistance/mm
    SF60.212
    0.38
    0.55
    N20.232
    0.322
    0.513
    20% SF6+80% N20.216
    0.311
    0.57
    Table 2. Gap distance changes with gas type and pressure
    working modepolarities of main voltagepolarities of trigger voltage
    negativepositive
    positivenegative
    positivepositive
    negativenegative
    Table 3. Polarities of main voltage and trigger pulse at different working mode
    Mingkang Zhang, Xuandong Liu, Xi Shen, Chengjun Liang. Discharge characteristics of a gas switch triggered by ejected plasma[J]. High Power Laser and Particle Beams, 2019, 31(12): 125003
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