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Integrated-molding-type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type polymer insulator string element

A technology of insulator strings and polymers, applied in the direction of suspension/strain insulators, insulators, electrical components, etc., can solve the problems of reduced utilization of creepage distance, complex operating conditions, and influence on the safe operation of polymer insulators, and achieve excellent anti-corrosion Water-based, improved pollution flashover voltage, best effect of pollution flashover characteristics

Inactive Publication Date: 2013-12-18
HEBEI XINHUA HIGH VOLTAGE ELECTRICAL EQUIP
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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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  • Integrated-molding-type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type polymer insulator string element
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Embodiment Construction

[0021] In order to better understand the purpose, structure and function of the present invention, the integrally formed double-mushroom and triple-mushroom disk-shaped suspension polymer insulator string components proposed in the embodiment of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Such as figure 1 As shown, the first embodiment of the present invention proposes an integrally formed double-umbrella-shaped and three-umbrella-shaped disc-shaped suspension polymer insulator string element, including: steel cap fittings 1, steel foot fittings 2, and polymer insulating parts 3 ; Wherein said steel cap fitting 1 is provided with a cavity with a U-shaped section inside, and said steel foot fitting 2 is provided with a conical head position that is compatible with said cavity; said steel cap fitting 1 and steel There is a polymer insulating part 3 between the foot fittings 2. The polymer insulating part 3...

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Abstract

The invention discloses an integrated-molding-type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type polymer insulator string element. The integrated-molding-type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type polymer insulator string element comprises a steel cap fitting, a steel leg fitting and a polymer insulating part, wherein the inner portion of the steep cap fitting is provided with a cavity with a U-shaped cross section, and the steel leg fitting is provided with a conical head portion matched with the cavity; the conical head portion of the steel leg fitting is arranged in the cavity of the steel cap fitting; the disk-shaped polymer insulating part is arranged between the steel cap fitting and the steel leg fitting, the disk-shaped polymer insulating part is formed in one step through an integrated injection or pouring technology, meanwhile, the disk-shaped polymer insulating part, the steel cap fitting and the steel leg fitting are solidified into a whole at high temperature, and the polymer insulating part comprises a shed of a double-umbrella-shaped structure or a three-umbrella-shaped structure. The integrated-molding-type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type polymer insulator string element has the advantages of preventing bird trouble and being resistant to sand, wind and external force destroy and capable of assisting climb and tread.

Description

technical field [0001] The invention relates to a composite insulator, in particular to an integrally formed double-umbrella-shaped and triple-umbrella-shaped disk-shaped suspension polymer 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...

Claims

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Application Information

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IPC IPC(8): H01B17/04H01B17/42
Inventor 及荣军王长明张炎武耿卫斌魏茂林
Owner HEBEI XINHUA HIGH VOLTAGE ELECTRICAL EQUIP
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