Design of multi-pulsed electron source

Liansheng, 夏连胜 Xia; Huang, 张篁 Zhang; Kaizhi, 张开志 Zhang; Linwen, 章林文 Zhang; Anmin, 杨安民 Yang; Yi, 谌怡 Chen; Liu, Xingguang; Wendou, 王文斗 Wang; Jin, 李劲 Li; Jinshui, 石金水 Shi; Jianjun, 邓建军 Deng

doi:10.3788/hplpb20122403.0706

Cited by 1 publication

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“…Water and transformer oil are widely used because of their high breakdown voltage [1][2][3][4] , but the breakdown field strength of water and transformer oil will decrease significantly with the increase of voltage. In contrast, the successful application of water as an energy storage medium in the high voltage pulse forming line improves the technical level of the high voltage pulse forming line [5] . Rompe and Weizel [6] first started to study the breakdown process of the gas spark gap and established an impedance model of the air discharge channel on the basis of energy balance.…”

Section: Introductionmentioning

confidence: 98%

Numerical simulation of the breakdown process of dielectric in high voltage pulse discharge

Guo

Gao

et al. 2023

J. Phys.: Conf. Ser.

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In order to study the breakdown process of the insulating medium of the needle-needle electrode under the action of high-voltage pulse discharge, the HV-LAB simulation software was used to study the discharge channel formed in the three kinds of insulating media, namely water, transformer oil, and air, and the three-dimensional model of the discharge breakdown insulating medium was designed. The process of discharge channel expansion, voltage, current, power, and energy loss in the discharge channel is analyzed. The results show that in the process of high-voltage pulse discharge breakdown of the insulating medium, the formation time of the discharge channel of transformer oil is long, the energy is accumulated, the number of discharge channels is less, the horizontal isopotential lines are dense, and the energy is concentrated. Under the same discharge conditions, the energy consumption of transformer oil in the process of high-voltage pulse discharge is the least. The results of this study can provide a reference for the selection of high-voltage crushing insulation medium.

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Section: Introductionmentioning

confidence: 98%