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In recent years, SF6/N2 gas mixtures with low SF6 mixing ratio was getting used as insulating medium in gas-insulated metal-enclosed transmission line in order to replace pure SF6. For the application of SF6/N2 gas mixtures in power equipment, this paper studied on the breakdown characteristics of SF6/N2 gas mixtures with low SF6 mixing ratio in different electric field non-uniformity under power...
The grounded back electrode can reduce the breakdown voltage. Inserting an insulation barrier is an effective way to increase breakdown voltage. The objective of this paper is to investigate the impact of barrier on AC breakdown with back electrode. The breakdown voltage is acquired from the experiments. The electric field distribution at breakdown is also obtained via software simulation. The experiments...
Pulsed Electric Field (PEF) processing is the application of the high-voltage technology in the biological science and food technology. The main limitations of the technology are the electrical breakdown of the treatment chamber under the repetitive pulsed high-voltage voltage. This paper focuses on the discharge process in the internal treatment chamber, mainly researching on the characteristics...
The breakdown voltage in a small spacing under dc voltage application has been well described with the Paschen law. The present paper differs from the previous works in that we employ ac voltage. The electrode system employed is sphere-plane electrodes and the sphere and/or sphere electrodes are coated with an epoxy resin. The breakdown voltage of air gap of the Metal (M) - Air gap (G) - M, MG-Epoxy...
Quasi uniform field gaps, namely sphere gaps are quite often used in high voltage laboratories. In the present work, both simulation and experimental results to see the electric stress distribution on breakdown voltage are presented. Considering commonly used vertical arrangement of sphere gaps, disruptive discharge voltages are measured experimentally. These experiments are with one sphere grounded...
Quasi uniform field gaps, namely sphere gaps are quite often used in high voltage laboratories. They exhibit very little polarity effect when subjected to direct high voltages. But if their electric field is disturbed by a near by earthed object they tend to show polarity effect. In the present work, both simulation and experimental results to see the electric stress distribution on breakdown voltage...
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