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Ultra-high voltage outdoor bar-shaped porcelain support insulator

A porcelain pillar and ultra-high voltage technology, applied in the direction of supporting insulators, etc., can solve the problems that are not conducive to improving the electric field distribution of rod-shaped porcelain pillar insulators, and the rod-shaped porcelain pillar insulators cannot be applied to 1000kV AC UHV power grids, etc., so as to improve mechanical properties and Electrical performance, improvement of electric field distribution, effect of ensuring safety and reliability

Active Publication Date: 2010-09-29
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rod-shaped porcelain post insulators with such a structure, height and strength cannot be applied to the 1000kV AC UHV power grid, and because the outer diameter of the upper grading ring is too small, it is not conducive to improving the electric field distribution on the top of the rod-shaped porcelain post insulator

Method used

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  • Ultra-high voltage outdoor bar-shaped porcelain support insulator
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  • Ultra-high voltage outdoor bar-shaped porcelain support insulator

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Embodiment Construction

[0010] Such as figure 1 As shown, the rod-shaped porcelain post insulator is composed of an upper equalizing ring 1, five equal-height porcelain components 2 and a lower equalizing ring 4 connected in turn by upper and lower flanges 3 and cement adhesive. The height is 2 meters. Among them, the main body diameter фC1 of the porcelain component in the previous section is 165-200mm, both of which are 185mm, and the maximum umbrella diameter is ф325mm; the main body diameter фC2 of the porcelain element 5 of the previous two sections is 200-240mm, both of which are 225mm, and the maximum umbrella diameter is ф365mm; the main body diameter фC3 of the upper three porcelain components is 240-280mm, both of which are 260mm, and the maximum umbrella diameter is ф400mm; the main body diameter of the upper four porcelain components фC4 is 280-310mm, all of which are 290mm, and the maximum umbrella diameter is ф430mm; The main diameter of the five-section porcelain component фC5 is 310-...

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Abstract

The invention provides an ultra-high voltage outdoor bar-shaped porcelain support insulator, aiming to solve the technical problem that the 500 kv and 750 kv voltage-class bar-shaped porcelain support insulator is not applicable to a 1000 kv alternating-current ultra-high voltage power grid. The invention is characterized in that the support insulator is composed of five equal- height porcelain elements, the height of each porcelain element is 2 m, the diameter of the main body of the last porcelain element is 310-330 mm, and the outer diameter of the upper equalizing ring is 2000-2800 mm. The invention is applicable to 1000 kv alternating-current ultra-high voltage power transmission engineering.

Description

technical field [0001] The invention belongs to the technical field of porcelain post insulators, and specifically relates to an AC rod-shaped porcelain post insulator which can be applied to 1000kV AC ultra-high voltage transmission projects and has a bending strength of 16kN. Insulation and mechanical support of power distribution devices and power station electrical equipment such as busbar pillars, disconnector pillars, wave trap pillars and air-core reactor pillars. Background technique [0002] Carrying out the construction of 1000kV AC UHV power grid and developing UHV power transmission technology will help improve the manufacturing level of power transmission and transformation equipment in China and even the world, and promote the progress of power transmission and transformation technology. my country has incorporated the development of UHV transmission technology and equipment into the national medium and long-term scientific and technological development plan, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/14
Inventor 叶立茂韩先才陈国强张海滨汤晓中周军胡旭东蒋建华侯冰
Owner STATE GRID CORP OF CHINA
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