Switch electrode and switch using the switch electrode and applied to electrical power system

Abstract

The invention discloses a switch electrode and a switch using the switch electrode and applied to an electrical power system. The switch electrode comprises a body of a tubular structure, wherein the cross section of the body is of an annular structure, an inner ring of the annular structure is round, an outer ring of the annular structure comprises four sections of connecting arcs which are evenly arranged in the circumferential direction and have the same first curvature radius, and every two adjacent connecting arcs are smoothly connected through a transition arc which has a second curvature radius. The switch electrode is of a special structure. Compared with an existing switch electrode, the switch electrode has the advantages that distribution of electric fields on the surface of the electrode with the special structure is evener, the phase interval and the width of a cabinet can be effectively reduced under the condition of the same insulation level, the structure of the cabinet can be more compact, cost is reduced, and the occupied area is reduced; in addition, compared with an electrode with a round outer ring, the switch electrode of the special structure can be installed and positioned more easily.

Description

technical field [0001] The invention belongs to the field of switch equipment for power systems, and in particular relates to a switch for power systems and a switch electrode thereof. Background technique [0002] At present, in the power system, the shape cross-section of the switch electrode, especially the three-position switch electrode, has the following two types: (1) square, such as Figure 1a with 1b As shown, the electrode is a tubular structure as a whole, and its cross-section is a ring structure. The inner ring of the ring structure is circular, and the main body of the outer ring is square, and rounded corners are performed at the edges (where the surfaces meet). To optimize the electric field structure; (2) circular, the outer and inner rings of the tubular electrode cross-section are concentric circles, such as Figure 2a with 2b shown. According to the common knowledge in the field of switchgear used in power systems, square electrodes have the outstandin...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a switch electrode to solve the problems of unreasonable electric field distribution on the surface of the existing switch electrode, large cabinet body and high cost, and at the same time provide a switch for power system using the electrode

Images