In order to understand the self-breakdown performance of the gas spark gap switch

the electric field unevenness is simulated and calculated from the point of the self-breakdown experiment.The self-breakdown voltage of the two-electrode gas spark gap switch at different clearance is measured.The stability of the breakdown voltage is analyzed by way of calculating relative range and variation coefficient and the Weibull test is performed.The experimental results show that the self-breakdown voltage increases with the increase of the gap distance and approximates linear relation.The gap distance is an important factor affecting the stability of the self-breakdown voltage.The stability of the self-breakdown voltage increases with the increase of the gap distance.From the perspective of self-breaking stability

the gap distance between the electrodes of the gas spark gap switch can be appropriately increased so to enhance the self-breakdown voltage stability.