Porcelain composite insulator and manufacturing method thereof

Abstract

The invention relates to a porcelain composite insulator and a manufacturing method thereof. The porcelain composite insulator comprises an insulation barrel, flanges or hardware fittings fixed at ends of the insulation barrel, and a porcelain umbrella skirt connected outside a bar body of the insulation barrel, wherein the insulation barrel is a glass fiber coiled enhanced epoxy barrel; and the porcelain umbrella skirt is formed by two or more groups of porcelain umbrella skirt sections which are connected in series with one another. The porcelain composite insulator has high mechanical strength, light weight and high inner insulation intensity; the surface of the porcelain umbrella skirt is treated by a special process; the porcelain composite insulator keeps the advantages of high electric strength, stable running, long service life and the like of a porcelain insulator and has the advantages that: the pollution flashover resistant capability is improved greatly and the shortcomingthat the conventional insulator is easy to pollute is overcome; most importantly, the porcelain umbrella skirt is formed by two or more groups of porcelain umbrella skirt sections which are connectedin series with one another, so the one-time qualification rate of products during production is increased greatly; therefore, the comprehensive performance of the porcelain composite insulator product is superior; and the porcelain composite insulator has higher popularization value.

Description

technical field [0001] The invention relates to a porcelain composite insulator used for high-voltage electrical appliances and power transmission and transformation lines in the electric power industry. The invention also provides a production process for the porcelain composite insulator, so that the first pass rate of the product in the production process is greatly improved. Background technique [0002] Existing electric high-voltage electrical appliances and transmission and transformation lines generally use traditional all-ceramic insulators or epoxy glass fiber reinforced materials and silicone rubber composite insulators. Porcelain insulators have high electric strength and excellent aging resistance. They are still mainstream products at present, but they are easy to break, and the yield of high-voltage grades is very low, resulting in high production costs and waste of resources; silicone rubber composite insulators are resistant to pollution Strong flashing abi...

AI Technical Summary

Problems solved by technology

Porcelain insulators have high electric strength and excellent aging resistance. They are still mainstream products at present, but they are easy to break, and the yield of high-voltage grades is very low, resulting in high production costs and waste of resources; silicone rubber composite insulators are resistant to pollution Strong flashing ability, light weight, suitable for occasions with high pollution levels, but its low electric strength, poor aging resistance, and poor stability, there are certain problems in the suspension insulators currently used in power transmission and transformation lines

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