Fixed connection structure and method of conductor and insulator supporting the conductor

Abstract

The invention provides a fixed connection structure and method for a conductor and an insulator supporting the conductor, wherein the outer wall of the conductor is inwardly recessed to form a first groove, the insulator is integrally formed outside the cylinder by casting, and it is sleeved on the conductor Outside, and the inner wall of the cylinder is recessed inward to form a second groove and a chute connected with the second groove, the first limit key is embedded in the first groove and the second groove, and the chute A second limit key is arranged in the middle, and the second limit key is fixed between the first limit key and the side wall of the chute. Utilizing the technical solution of the embodiment of the present invention, the fixed connection between the conductor and the insulator supporting the conductor can be realized ultra-clean, normal temperature, light weight and low cost.

Description

technical field [0001] The invention relates to the technical field of high-voltage electrical switchgear, in particular to a fixed connection structure and method for a conductor and an insulator supporting the conductor. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] In the case of GIL or GIS busbar applications, a standard assembly unit for installation and disassembly usually includes a tubular shell container containing insulating medium gas. A metal tubular conductor is coaxially arranged in the shell container. The shell container and The conductors are provided with supporting insulators. No matter how the structural shape of the insulator changes, the supporting insulator and the conductor must achieve a fixed connection effect in the axial and circumferential directions. [0004] There are many existing technologies and embodiments for th...

AI Technical Summary

Problems solved by technology

If the plastic deformation of the metal cylinder is too large, it will cause a large internal stress in the insulator, which will affect the bonding strength between the insulator and the metal cylinder

If the plastic deformation of the metal cylinder is too little, the connection strength between the metal cylinder and the conductor will be insufficient, and it will be difficult to ensure the fixed connection strength between the insulator and the conductor

[0023] In addition, during the process of wedging the metal wedge between the metal cylinder and the outer wall of the conductor, metal scraps will be generated

If these metal scraps are not cleaned thoroughly, discharge flashover may occur in the subsequent use process, which will bring hidden dangers to the quality of the product

[0024] In short, using the technical solution of the known embodiment 4, there are defects that it is difficult to grasp the strength of the fixed connection, and it is difficult to completely remove metal scraps

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