Spherical composite insulator

A composite insulator and spherical technology, which is applied in the field of electric power engineering, can solve the problems of easy ice flashover and service life, and achieve the effect of reducing surface contamination and ice coating, and prolonging the normal working cycle.

Pending Publication Date: 2018-11-06
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide a new type of spherical composite insulator in view of the defects that the existing composite insulator structure is prone to ice flash due to icing and has a short service life in extreme weather

Method used

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  • Spherical composite insulator

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Embodiment

[0024] see figure 1 , the spherical composite insulator shown in the figure is a preferred solution of the present invention, specifically including a ball-socket fitting 1 , a spherical body 2 , a mandrel 3 and a ball-end fitting 4 .

[0025] The mandrel 3 is a glass mandrel, and at least two groups of spherical bodies 2 are arranged on the mandrel 3, and the spherical body with a spherical structure is used to replace the existing shed insulator, and the centers of all the spherical bodies 2 are located on the axis of the mandrel 3 In this way, it is ensured that the center of gravity of the insulator falls uniformly on the axis of the mandrel 3 .

[0026] The spherical body 2 in this embodiment includes two insulating spheres, one large and one small, wherein the diameter of the first insulating sphere 21 is greater than the diameter of the second insulating sphere 22, and the first insulating sphere 21 is close to the upper end of the mandrel 3, and the second Insulating ...

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Abstract

The invention discloses a spherical composite insulator which comprises a core rod and a plurality of groups of spherical main bodies fixed on the core rod. Each spherical main body is a round spherestructure made of an insulation material, and the sphere center of the spherical main body is positioned at the axis of the core rod; and connection fittings are fixedly arranged at both ends of the core rod. The spherical main bodies comprise at least two insulation spheres; the insulation spheres with different diameters are alternatively distributed; and the diameters of the insulation spheresclose to the upper end of the core rod are greater than those of the insulation spheres close to the lower end of the core rod. According to the invention, the aim of little ice coating and dirt accumulation is fulfilled by changing an appearance structure of the insulator; the insulator fixed on the core rod is set into round spheres with different diameters; surface dirt accumulation and an icecoating quantity of the insulator can be greatly reduced by the spherical structures; and the normal working period of the insulator is prolonged.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering and relates to insulators for power transmission lines, in particular to a spherical composite insulator. Background technique [0002] Composite insulators are widely used in overhead transmission lines due to their advantages of good pollution resistance, light weight and high mechanical strength. Existing insulators are prone to icing and dirt accumulation. The main reason is that the sheds of the insulators are arranged in an umbrella shape, and rain, snow and dirt are easy to accumulate after settling on the upper surface of the sheds, and then accumulate continuously; on the other hand, conventional composite insulators The umbrella skirt is thin. When encountering strong wind and freezing rain, the thinner umbrella skirt has a higher collision rate of supercooled water droplets, which creates favorable conditions for ice-covered growth. [0003] Especially in the event o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/14H01B17/38H01B17/46
CPCH01B17/14H01B17/38H01B17/46
Inventor 巢亚锋
Owner STATE GRID HUNAN ELECTRIC POWER
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