Study of the local discharge propagation velocity over two electrolytes water channels by measurement of current

Boudjella, Aissa; Hadi, H.; Yumoto, Motoshige; Sakai, Takashi; Hosokawa, Tatsuzo

doi:10.1109/ceidp.1999.807839

Cited by 2 publications

(3 citation statements)

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“…c-The critical current in one channel of a multi-channel models is the same, whether the other channels are connected or not [4,13,14].…”

Section: Introductionmentioning

confidence: 99%

“…b-The total current does not determine the critical conditions of flashover; only the current in the direction of the propagation of the discharge does [4,13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, the application of these criteria or these methods on more complex models did not give good results. To determine the reasons for which the suggested models did not give good results, and in order to uncover a more general criterion of flashover as well as methods for the determination of its critical conditions, the study of the phenomenon has Manuscript received on 10 April 2005, in final form 9 January 2006. been resumed on multi-channel models having two opposite grooves [4,13], four grooves separated by an angle of 90° and eight grooves separated by an angle of 45° [14]. The studies which were made on these models confirm the general results of one-channel models and give the following new general results: a-The critical conditions of flashover are determined by the effect of the leakage current during its circulation in the electrolyte and not by that of the discharge current [4,13,14].…”

Section: Introductionmentioning

confidence: 99%

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Critical condition of DC flashover on a circular sector model

Flazi

Boukhennoufa

Ouis

2006

IEEE Trans. Dielect. Electr. Insul.

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In order to find the electrical size which determined the critical condition of flashover, the authors have examined the propagation of the discharge on surface under dc voltage in a new laboratory model which has a continuous and radial current distribution. This model is a vat having a circular sector form of variable angles, radiuses and depths filled by an electrolyte. The obtained results on this model show that for a given resistivity of electrolyte: -If the current distribution in the horizontal plane is uniform according to the sector angle, the applied critical voltage and the critical current per unit of angle (1°) are constant for all sectors of various angles. -If the current distribution in the vertical plane is uniform according to the depth, the critical flashover voltage and the critical current per unit of the electrolyte depth (1mm) are constant for all the depths. These results lead to the critical conditions of flashover to be determined by the current per unit of angle and per unit of electrolyte depth (A/°/mm).

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“…c-The critical current in one channel of a multi-channel models is the same, whether the other channels are connected or not [4,13,14].…”

Section: Introductionmentioning

confidence: 99%

“…b-The total current does not determine the critical conditions of flashover; only the current in the direction of the propagation of the discharge does [4,13,14].…”

Section: Introductionmentioning

confidence: 99%