Journal ArticleDOI
Magnetic inhibition of surface flashover of insulators in vacuum
TLDR
In this paper, the possibility of preventing high-voltage surface flashover of insulators in vacuum by means of a strong magnetic field perpendicular to the electric field and parallel to the insulator surface is investigated theoretically.Abstract:
The possibility of preventing high‐voltage surface flashover of insulators in vacuum by means of a strong magnetic field perpendicular to the electric field and parallel to the insulator surface is investigated theoretically. A simple model predicts that with the right choice of insulating material one can design diodes and transmission lines so that the magnetic field from the line current inhibits the secondary‐electron‐emission avalanche which is believed to play an important role in the flashover process.read more
Citations
More filters
Journal ArticleDOI
Surface charge migration and dc surface flashover of surface-modified epoxy-based insulators
TL;DR: In this paper, the effect of direct fluorination on surface charge migration and flashover voltage was verified, and it was shown that the surface charge decay of epoxy-based model insulators is a slow process, but the decay rate increases when an outer dc electric field is applied.
Journal ArticleDOI
Theory of the secondary electron avalanche at electrically stressed insulator‐vacuum interfaces
TL;DR: In this paper, the saturation condition for the two extremes of supply-limited and space-charge-limited current is obtained in analytic form, and comparison with the computer simulation of Anderson is made.
Journal ArticleDOI
Magnetic inhibition of insulator flashover
TL;DR: In this paper, the self-magnetic field effects on a plastic vacuum insulator flashover were examined with inductive loads, particle beam loads, and imploding plasma loads.
Journal ArticleDOI
HV design of vacuum-insulated power supplies for space applications
M. Gollor,K. Rogalla +1 more
TL;DR: In this paper, the dielectric properties of space vacuum insulations are determined mainly by the space environment and local contaminations of the spacecraft structure, such as temperature, pressure, radiation, charged particle flux, outgassing products, and effluents.
Journal ArticleDOI
Methods of increasing the surface flashover potential in vacuum
TL;DR: In this article, the effects of surface coating and magnetic fields on dielectric surface breakdown in vacuum are described, and the results show that surface coatings of metals and meta oxides increase the pulsed surface hold-off voltage by factors of up to three, depending on the material.
References
More filters
Book ChapterDOI
Secondary Electron Emission from Solids
O. Hachenberg,W. Brauer +1 more
TL;DR: In this paper, a qualitative description is presented of how the different elementary processes of secondary emission from solids are connected with one another and the distribution function of observed S, denoted by js(E,Ω) is discussed.
Journal ArticleDOI
Mechanism of Surface Charging of High-Voltage Insulators in Vacuum
C. de Tourreil,K. D. Srivastava +1 more
TL;DR: In this paper, the surface of insulators becomes electrically charged when subjected to high-voltage stresses and a model simulating the charging mechanism is described, showing that the surface charge densities are proportional to the applied voltage and depend on the secondary electron emission of the dielectric surface.
Journal ArticleDOI
Pulsed Flashover of Insulators in Vacuum
TL;DR: In this paper, the surface strength of dielectric specimens in the shape of a frustum of a cone were evaluated for surface flashover strength in vacuum of 10-5 torr.
Journal ArticleDOI
Pulsed Flashover in Vacuum
TL;DR: In this paper, a theory is presented to explain the formative process leading to flashover for one polarity in dielectric frusta, where positive surface charge grows by emission of hot electrons during the application of the electric field.