The electric pressure jump in the hydraulic model in a non-ohmic/non-ohmic fluid interface

Reyes, Francisco Vega; Castellanos, A.

doi:10.1109/ceidp.2004.1364203

Cited by 2 publications

References 4 publications

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On the dimensionless magnitudes in the problem of a dielectric interface under unipolar injection

Reyes

Castellanos

CEIDP '05. 2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2005.

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We study the relevant dimensionless magnitudes in the electric field in a plane capacitor with two superposed dielectric layers inside. The system is provided with a DC voltage source and with a unipolar space charge source. These electric field sources are mutually independent (autonomous injector). The relevant dimensionless magnitudes are analyzed for the stationary solution of the electric field in the three basic cases of dielectric interfaces: ohmic/ohmic, non-ohmic/non-ohmic and non-ohmic/ohmic. We analyze the behavior of the electric field properties, specifically at the interface, attending to these dimensionless magnitudes.

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On the dimensionless magnitudes in the problem of a dielectric interface under unipolar injection

Reyes

Castellanos

CEIDP '05. 2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2005.

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Analysis of Air Bubble Deformation Subjected to Uniform Electric Field in Liquid Dielectric

Talaat

El-Zein²

2012

IJEA

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A new numerical analysis has been carried out in order to determine the electrostatic pressure acting on the liquid-air interface. Also by aid of photographic recording the surface tension at the equator and poles is determined, the internal pressure is calculated and the relationship with the voltage square is enlightened. The analysis of the unstable bubble ejected or compressed against the sphere electrode with sharp edge protrusion, is explained and the values of charge under an applied electrical field at ejection condition are given. The breakdown electric field of the transformer oil is calculated, and a new breakdown voltage equation linking the compressed conducting bubble to the breakdown field is proposed. A new ratio of calculated electric charge at ejection mode relative to the value of ejected electric field is achieved. Also the breakdown voltage can be estimated by knowing the value of the voltage at compressed mode, using a new addressed space charge formation factor which is equal to 1.1. The results have been assessed through comparison with available analytical and experimental data.

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The electric pressure jump in the hydraulic model in a non-ohmic/non-ohmic fluid interface

Cited by 2 publications

References 4 publications

On the dimensionless magnitudes in the problem of a dielectric interface under unipolar injection

On the dimensionless magnitudes in the problem of a dielectric interface under unipolar injection

Analysis of Air Bubble Deformation Subjected to Uniform Electric Field in Liquid Dielectric

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