Reliability of Various Type of Gas-filled Surge Arresters Under DC Discharge

Živanović, Emilija; Veljković, Sandra; Zivkovic, Maja; Pejović, Momčilo M.

doi:10.1109/miel.2019.8889580

Cited by 4 publications

(2 citation statements)

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“…Time delay method proved to be a valuable tool for Littelfuse GFSA reliability testing [4]. The continuation of our research relates to a detail analysis of these gas components and further extends to similar components manufactured by EPCOS at the same operating voltage of 230 V. On this occasion, a similar analysis was performed with the possibility to comparing the new results with previously used components as well as with characteristics from the datasheet [2,3].…”

Section: Introductionmentioning

confidence: 94%

The evolution of breakdown voltage and delay time under high overvoltage for different types of surge arresters

Živanović

Zivkovic

Pejović

2021

Facta Univ Electron Energ

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The results of the reliability testing of Littelfuse and EPCOS gas-filled surge arresters for different overvoltages under DC discharge will be presented in this paper. The static breakdown voltage of these gas components was estimated using voltage increase rates ranging from 1 to 10 V/s. A detailed statistical analysis of experimental data has also been done. The delay time of these components for different nominal overvoltages has been investigated as an additional aspect important for component reliability. In addition, the delay time method was used as a statistical method which can give neither ion nor neutral active states number density in the glow and afterglow. It can be employed for qualitative observation of ions and neutral active states decay in the afterglow to such low concentrations where the other methods cannot be applied. Finally, a comparison has been done between the characteristics of two gas-filled surge arresters which have the same nominal overvoltage (Littelfuse and EPCOS) from different manufacturers.

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Section: Introductionmentioning

confidence: 94%

The evolution of breakdown voltage and delay time under high overvoltage for different types of surge arresters

Živanović

Zivkovic

Pejović

2021

Facta Univ Electron Energ

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“…As previous research was related to the reliability test of GFSA [22,23], and the influence of radiation was examined through the behavior of memory curves in a gas-filled tube, as well as breakdown voltage, the aim of this paper is to investigate the influence of gamma radiation on the breakdown voltage stability of gas-filled surge arrester.…”

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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