Investigation of post-discharge processes in nitrogen at low pressure

Nešić, Nikola T.; Pejović, Momčilo M.; Brajovic, Dragan; Denic, Ivana V.

doi:10.1063/1.4773026

Cited by 17 publications

(4 citation statements)

References 49 publications

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“…The purpose of the digital subsystem was to make fast and accurate detection of signals from the analog subsystem and to handle the measured data. shown [8] that this value of g t was sufficient enough to attain steady-state discharge conditions. Prior to measurement of d t , w U and g I were adjusted manually, while τ and d t values were software input parameters.…”

Section: Resultsmentioning

confidence: 85%

Electrical breakdown time delay in commercial gas-filled surge arresters

Pejović

Dekic

Jovanovic

et al. 2015

2015 IEEE Pulsed Power Conference (PPC)

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Section: Resultsmentioning

confidence: 85%

Electrical breakdown time delay in commercial gas-filled surge arresters

Pejović

Dekic

Jovanovic

et al. 2015

2015 IEEE Pulsed Power Conference (PPC)

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“…Con sid er ing the pre vi ous ex pla na tion, it can be con cluded that to op ti mize the char ac ter is tics of the three-elec trode spark gaps, the fol low ing is re quired: 1con struct the three-elec trode spark gaps which are 100 % trig gered by Mech a nism I, and 2 -min i mize the sta tis tical dis si pa tion of the trig ger time by se lect ing the trig ger im pulse shape, elec trode pro cess ing, choos ing the ma terial of the elec trode and the in su lat ing gas [28][29][30].…”

Section: The Trig Ger Ing Mech a Nism For The Three-elec Trode Spark Gapsmentioning

confidence: 99%

Optimization of fast three-electrode spark gaps isolated with a SF6 and he mixture

et al. 2021

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This paper considered the possibility of reducing the dissipation of the trigger time of the three-electrode spark gaps with a separated triggered electrode. The work is of a theoretical, numerical and of experimental nature. The experiments were performed on a spark gap model under well-controlled laboratory conditions. It was determined that the results obtained with the model can be applied to the spark gap prototype. Unlike the previous research in this area, the computer-designed spark gap that was used can be triggered with one mechanism only. Also, as opposed to the previous study, a mixture of SF6 and He gases and the third electrode with a double ionization effect were used. The obtained results showed the optimal combination of the construction solution, insulation gas, triggered impulse, and the triggered electrode's shape, reduce the stochastic dissipation of a random variable far in the sub-microsecond field. This result is of great significance for the parallel triggering of current and voltage generators to obtain the best superposition signals.

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“…Similar investigation was conducted in nitrogen-filled gas tube, as could be seen for example in Refs. [13,14]. It should be noted that similar research with gaseous components was conducted, for example, with HVDC components estimating the distribution of the electric field and the voltage holding of the designed geometry [15].…”

Section: Introductionmentioning

confidence: 99%

Study of Breakdown Voltage Stability of Gas-Filled Surge Arresters in the Presence of Gamma Radiation

2022

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The results presented in this article relate to the study of the impact of gamma radiation on the breakdown voltage of gas-filled surge arrester manufactured by CITEL, Littelfuse and EPCOS at an operating voltage of 230 V. Radium was considered as a source of gamma radiation in this research. The stability of breakdown voltage as well as the reliability of gas-filled surge arresters of different manufacturers were investigated using different statistical methods. This gas component operation was based on processes that lead to electrical breakdown and discharge in gas. The breakdown voltage has a stochastic nature, and it is a subject of certain distribution. One thousand voltage measurements of breakdown voltage were carried out for each value of the voltage increase rate, from 1 V/s up to 10 V/s, with and without the presence of additional gamma radiation. The detailed statistical analysis of the obtained experimental data was performed for both cases for all three GFSA types. Moreover, the cumulative distribution functions of breakdown voltage were presented with the applied Weibull distribution fit. The coefficient of correlation as well as Pearson χ2 test showed the strength of the relationship between the experimental distribution functions and the Weibull distribution fits. The values of the Weibull distribution coefficients for all voltage increase rates and for all components were also analyzed with and without gamma radiation.

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Investigation of post-discharge processes in nitrogen at low pressure

Cited by 17 publications

References 49 publications

Electrical breakdown time delay in commercial gas-filled surge arresters

Electrical breakdown time delay in commercial gas-filled surge arresters

Optimization of fast three-electrode spark gaps isolated with a SF6 and he mixture

Study of Breakdown Voltage Stability of Gas-Filled Surge Arresters in the Presence of Gamma Radiation

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