gis shield and silver-plated conductor painting process

Abstract

The invention belongs to the field of GIS switchgear, and specifically relates to the painting process of GIS shielding parts and silver-plated conductors, including pre-painting treatment, painting treatment and post-painting treatment, wherein the pre-painting treatment process includes sandblasting before sandblasting, sandblasting, and anti-sanding. Oxidation, cleaning and drying, masking before painting; painting process includes painting and drying after painting; post-painting treatment includes paint adhesion testing, paint repair, demasking, polishing, cleaning and packaging processes. The surface of the shield and silver-plated conductor treated by the painting process is smoother, and the uniformity of the electric field is better, which greatly reduces the discharge of GIS products, and does not need to expand the diameter of the shell, conductor and shield, making GIS products miniaturized and reducing GIS manufacturing cost. Moreover, the painting process of the present invention is simple, easy to operate and form, and has high product quality.

Description

technical field [0001] The invention relates to the field of GIS switchgear, and relates to a GIS shielding part and a silver-plated conductor painting process. Background technique [0002] SF 6 Closed combined electrical appliances (Sulfur hexafluoride full metal-enclosed high-voltage electrical combined switch, hereinafter referred to as "GIS"), that is, gas-insulated switches, are widely used in high-voltage, ultra-high voltage or ultra-high voltage fields; during partial discharge tests, conductors to shielding often occur Discharge, conductor to shell discharge, shield to shell discharge and other hazards. In product design, the designer usually adopts the scheme of enlarging the design margin to solve the partial discharge hazard, which will increase the diameter of the shield, conductor and shell by about 20%, and the larger diameter will increase the amount of material used. The rising cost leads to the rising cost of GIS products and hinders the market competitiv...

AI Technical Summary

Problems solved by technology

In product design, the designer usually adopts the scheme of enlarging the design margin to solve the partial discharge hazard, which will increase the diameter of the shield, conductor and shell by about 20%, and the larger diameter will increase the amount of material used. Rising costs lead to rising costs of GIS products, hindering the market competitiveness of GIS products