Journal ArticleDOI
Particle-Initiated Breakdown in SF6 Insulated Systems Under High Direct Voltage
TLDR
In this paper, a particle charging and detachment into a compressed SF6 coaxial electrode gap energized with high direct voltage have been investigated using the charge simulation technique and dimensional analysis.Abstract:
Conducting particle charging and detachment into a compressed SF6 coaxial electrode gap energized with high direct voltage have been investigated using the charge simulation technique and dimensional analysis.read more
Citations
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Journal ArticleDOI
Conducting particle motion and particle-initiated breakdown in dc electric field between diverging conducting plates in atmospheric air
TL;DR: In this article, the analysis of spherical conducting particle motion as well as particle initiated breakdown in electric fields between diverging conducting plates with dc voltage in atmospheric air is discussed, where the particle is placed on the horizontal electrode surface where the electric field is nearly equal to the lifting field, the particle progresses towards a higher electric field region by the effect of Coulomb force and electrical gradient force.
Journal ArticleDOI
Review of high-voltage gas breakdown and insulators in compressed gas
TL;DR: In this paper, a review of the theoretical and experimental analysis of high-voltage gas breakdown and surface flashover of insulators in compressed gases is presented, including the effects of failure of Paschen's law, electrode area, material and surface, breakdown voltage distribution, particle contamination, voltage waveform, charge generation, and surface contamination.
Journal ArticleDOI
Lifting Field of Free Conducting Particles in Compressed SF6 with Dielectric Coated Electrodes
TL;DR: In this paper, the lifting field of a free conducting particle (FCP) situated on a dielectric coated electrode in compressed SF6 gas is calculated based on two different particle charging mechanisms.
Journal ArticleDOI
Effect of Avalanche Space Charge Field on the Calculation of Corona Onset Voltage
H. Parekh,K. D. Srivastava +1 more
TL;DR: In this paper, the effect of the space charge field of both the positive ions and the electrons at the head of the primary electron avalanche was considered in calculating the corona onset voltage.
Journal ArticleDOI
Experimental studies of free conducting wire particle behavior between nonparallel plane electrodes with AC voltages in air
TL;DR: In this article, the authors investigated the possibility of appearance of corona wind on wire particles, which can easily produce the corona discharge on their ends resulting the action of a reactive force on the particle by a corona.
References
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Journal ArticleDOI
A Charge Simulation Method for the Calculation of High Voltage Fields
TL;DR: In this paper, a numerical method for the computation of electrostatic fields is described, based on the use of fictitious line charges as particular solutions of Laplace's and Poisson's equations.
Journal ArticleDOI
Measurement of Ionization and Attachment Coefficients in Sulphur Hexafluoride in Uniform Fields
M S Bhalla,J D Craggs +1 more
TL;DR: In this paper, the growth of pre-breakdown currents in uniform field conditions in sulphur hexafluoride at different pressures for values of E/p in the range of 90 to 160 v cm-1 mmHg-1 (5-200 mm Hg pressure) indicates very large electron attachment.
Journal ArticleDOI
Influence of particles on AC and DC electrical performance of gas insulated systems at extra-high-voltage
TL;DR: In this paper, the effects of particle size, shape, and material for both SF 6 and N 2 gases at pressures up to 15 atm in a plain coaxial gap and a post-type support spacer including a post.
Journal ArticleDOI
Criteria for Spark Breakdown in Sulfur Hexafluoride
TL;DR: In this paper, the mechanisms of spark breakdown in SF6 and other electronegative gases are discussed, and quantitative criteria are derived for the Townsend type and the streamer type of breakdown in nonuniform fields.
Journal ArticleDOI
A method for prediction of gaseous discharge threshold voltage in the presence of a conducting particle
Masanori Hara,Masanori Akazaki +1 more
TL;DR: In this article, the breakdown mechanisms in a non-uniform field gap with a free conducting sphere can be classified into four kinds with regard to the particle movement and the occurring position of breakdown.
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A method for prediction of gaseous discharge threshold voltage in the presence of a conducting particle
Masanori Hara,Masanori Akazaki +1 more