Investigation of the effects of mixed electric field stress on high voltage transformer insulation

Seyfi, Pourya; Zahedi, Saeed; Shojaei, Hojat; Ghomi, Hamid

doi:10.1007/s00202-021-01480-6

Cited by 2 publications

(1 citation statement)

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“…The power supply used is a high voltage resonant pulse generating circuit designed in flyback mode. Figure 19 shows the circuits’ used 34 . The mass flow controller are employed to provide constant Ar flow (99.999%), which Located in the path of the argon bottle and the gas inlet of the jet system.…”

Section: Methodsmentioning

confidence: 99%

Low-temperature argon plasma jet with cascading electrode technique for biological applications

Seyfi

Keshavarzi

Zahedi

et al. 2022

Sci Rep

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In this study, the design, performance, and characteristics of a low-temperature argon plasma jet with cascading electrode technique (APJCE) are presented. APJCE is designed based on a tip-ring structure with a cascading ring. The effect of plasma jet driven by repetitive high-voltage microsecond pulses in APJCE structure was measured qualitatively in local surface temperature detection system. Then, by applying the generated plasma jet to biological surface and measuring and characterizing the electrical parameters, we obtained a plasma jet, which is electrically and thermally in the cold plasma regime. Simulation of the electric field distribution in the nozzle also yielded similar results to the experimental results. Finally, by cascading electrodes, we guided the plasma column to the nozzle output so that the plasma temperature within four centimeters of the nozzle output is 37 °C. The resulting plasma jets were studied by atomic emission spectroscopy and the intensity of the spectral lines of the atmospheric argon plasma jet spectra was obtained as a final experimental result at the output.

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Section: Methodsmentioning

confidence: 99%