Self-cleaning multiple insulator

Abstract

The invention discloses a self-cleaning multiple insulator, and belongs to the field of power transmission devices. The self-cleaning multiple insulator comprises an insulating piece umbrella skirt, a top end part and an insulator column. The insulating piece umbrella skirt comprises an upper umbrella skirt, a first middle umbrella, a second middle umbrella and a lower umbrella skirt. The insulator column is arranged under the upper umbrella skirt. The lower umbrella skirt is arranged at the lower end of the insulator column. The first middle umbrella and the second middle umbrella are arranged on the outer circumference of the insulator column. The outer surface of the insulator column, the upper surface of the first middle umbrella, the upper surface of the second middle umbrella and the upper surface of the lower umbrella skirt are each in a wavy shape like the transverse section of the circumference of the circle where the circle center of the insulating piece umbrella skirt is located. Both the lower surface of the first middle umbrella and the lower surface of the second middle umbrella are in an upwards-concave arc shape. The self-cleaning multiple insulator can accumulate rainwater to flush away accumulated dust, and therefore the self-cleaning function is achieved, manpower and material resources are saved, the pollution flashover situation is avoided, the creepage distance can be improved, the blowing effect of wind power on hidden portions of joints of the umbrella skirts, the water dropping amount of rainwater for the hidden portions is increased, the flushing effect is improved, and the overall cleanliness of the product is improved.

Description

technical field [0001] The invention belongs to the field of power transmission equipment, and more specifically relates to a self-cleaning composite insulator. Background technique [0002] Disc suspension insulators are a type of insulators used in transmission lines. Among all kinds of line insulators, disc suspension insulators are the most important and the most used one. Insulators are mainly used in overhead transmission lines to insulate and suspend conductors. When insulators are used, they are mainly subjected to the combined effects of tension, vibration, system voltage, overvoltage and various atmospheric conditions. The structure of the insulator can be divided into two parts: the top part and the shed of the insulator. The shed of the insulating part is the visible part of the insulator except the top part, and the shed of the insulating part is generally disc-shaped. The top part of the insulator mainly endows the insulator with mechanical strength and int...

AI Technical Summary

Problems solved by technology

[0003] There are many edge cleaning devices, most of which are cleaned manually with the help of external tools, but this method is time-consuming and labor-intensive

[0004] In the prior art, the slope of the upper surface and the lower surface of the shed of the composite insulator is relatively gentle, and the anti-fouling ability is poor, especially in a dynamic environment, the accumulated Poor pollution characteristics, can not effectively guarantee the cleanliness of the product surface, easy to cause pollution flashover, especially when operating safely under high wind speed conditions, the relatively dense shed structure design is easy to form a chain under heavy rain or heavy rain form, causing rain flashes

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