Gas switch electrode

Abstract

The invention discloses a gas switch electrode, comprising a graphite electrode, an electrode sleeve and an electrode seat, wherein the graphite electrode is compactly pressed on the electrode seat by the electrode sleeve; the outer circular conical surface of the graphite electrode and the inner circular conical surface of the electrode sleeve have the same conical degree; the electrode sleeve is fixed on the electrode seat by using bolts and nuts via installing and positioning holes; and a gap is retained between the electrode seat and the electrode sleeve. The installing and positioning holes are optimal through holes with smooth inner walls, the diameter of the through hole is larger than that of the bolt, and a layer of organic insulating material can cover outside the bolt.The invention can ensure tight contact of the electrode and the electrode seat, has no influence on the electric property of the switch, prevent serious ablation and adhesion for the electrode seat and relatedfasteners (like bolts and nuts) after repeated breakover and discharge of the switch, and improve the detachability of the electrode structure after repeated breakover and discharge of the switch obviously, thus facilitating maintenance and replacement of the electrode.

Description

technical field [0001] The invention belongs to the technical fields of high-voltage electrical appliances and pulse power, and relates to an anti-ablation electrode with a gas switch with a coaxial structure of two electrodes. Background technique [0002] Pulse power technology refers to the electrophysical technology that stores high-density energy for a long time, performs rapid compression, conversion, or directly releases energy to the load in a short time. The switching device occupies a special position in the pulse power system, because the parameters and characteristics of the switching device have the most direct and sensitive influence on the rise time and amplitude of the pulse. For pulsed power devices, it is not an exaggeration to say that its performance is determined by the characteristics of the switches used. Any progress in the ability to transfer stored energy to a load is predicated on the successful design and development of a wide variety of pulsed h...

AI Technical Summary

Problems solved by technology

However, due to the metal adhesion between the electrode and the electrode holder, the electrode sleeve and the electrode holder, and the screws and nuts connecting the electrode holder and the electrode sleeve after the switch is turned on and discharged for many times, the switch often has to be replaced as a whole.

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