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Cementing type bell-shaped disk-shaped suspension type composite polymer string insulator unit

A technology of composite insulators and polymers, applied in the direction of suspension/strain insulators, insulators, electrical components, etc., can solve the problems of reduced creepage distance utilization, complex operating conditions, and affecting the safe operation of polymer insulators. Water-based, improved pollution flashover voltage, fast and convenient maintenance and transportation

Inactive Publication Date: 2013-12-18
河北荣森电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The decrease of the umbrella spacing can increase the creepage distance of the polymer insulator under the condition of a certain insulation height, but the pollution flashover voltage does not increase linearly with the increase of the creepage distance, and the umbrella spacing is too small, especially for the prismatic Protruding bell-shaped products are prone to bridging between umbrellas, and the utilization rate of creepage distance is relatively reduced
[0005] Polymer insulators operate in a wide geographical range, and different regions have their own geographical particularities, resulting in complex operating conditions. At the same time, there are external uncertainties in the transportation, installation and maintenance of polymer insulators, which affect the safe operation of polymer insulators.

Method used

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  • Cementing type bell-shaped disk-shaped suspension type composite polymer string insulator unit

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Embodiment Construction

[0019] In order to better understand the purpose, structure and function of the present invention, a glue-mounted bell jar-shaped disc-shaped suspension polymer composite insulator string element according to the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, the rubber-mounted bell jar-shaped disc-shaped suspension polymer composite insulator string element of the present invention includes: steel cap fittings 1, steel foot fittings 2, insulating core 3, and polymer shed 5; The inside of the steel cap fitting 1 is provided with a cavity with a U-shaped cross-section, and the steel foot fitting 2 is provided with a cone head part that is compatible with the cavity; the cone head part of the steel foot fitting 2 It is arranged in the cavity of the steel cap fitting 1, and an insulating core 3 is provided between the cone head and the cavity; the center of the insulating core 3 is pro...

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Abstract

The invention discloses a cementing type bell-shaped disk-shaped suspension type composite polymer string insulator unit. The polymer string insulator unit comprises a steel cap metal element, a steel foot metal element, an insulating core element and a polymer skirt. A cavity with a U-shaped section is formed in the steel cap metal element, the steel foot metal element is provided with a cone head portion matched with the cavity, the cone head portion of the steel foot metal element is arranged in the cavity of the steel cap metal element, the insulating core element is arranged between the cone head portion and the cavity, the center of the insulating core element is provided with a cementing portion which is a cavity of an inverted cone shape, the bell-shaped polymer skirt wraps the outer surface of the insulating core element, the inner wall of a bell-type body is provided with a plurality of prismatic protrusions coaxial with the insulating core element, the cone head portion of the steel foot metal element is integrated with the cementing portion in a cementing mode through an adhesive, and the cavity of the steel cap metal element is integrated with the cementing portion in a cementing mode through an adhesive. The polymer string insulator unit has the advantages of preventing bird damages, and being resistant to wind and sand, resistant to damages caused by external force and capable of assisting climbing.

Description

technical field [0001] The invention relates to a composite insulator, in particular to a glue-mounted bell jar-shaped disc-shaped suspension polymer composite insulator string element. Background technique [0002] Polymer insulators are favored by the industry because of their great advantages over porcelain and glass insulators in terms of weight, zero measurement value, pollution flashover voltage resistance, and no self-explosion, especially the high pollution flashover voltage. The study found that there is a certain relationship between the shed structure of the insulator and the pollution flashover voltage, so that the pollution flashover voltage of polymer insulators with the same other conditions but different shed structures is different. [0003] The influence of the umbrella diameter on the pollution flashover characteristics of polymer insulators is as follows: the increase of the umbrella diameter increases the equivalent diameter of the polymer insulator, whi...

Claims

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Application Information

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IPC IPC(8): H01B17/04H01B17/42
Inventor 及荣军张春梅王长明张炎武耿卫斌贾传熙
Owner 河北荣森电气有限公司
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