Ultra-high voltage compound brace insulator

A pillar insulator and UHV technology, applied in the field of UHV composite pillar insulator, can solve the problems of complex production process, high electrical and mechanical performance requirements, and high voltage level, and achieve high strength, excellent pollution resistance, and short production cycle. Effect

Inactive Publication Date: 2007-08-15
山东彼岸电力科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, most of the post insulators used in power plants and substations at home and abroad are porcelain insulators. Due to the high voltage level, high electrical and mechanical performance requirements, and complex production processes, composite post insulators for 1000KV UHV equipment have not been successfully developed.

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  • Ultra-high voltage compound brace insulator

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] As shown in Figure 1, the UHV composite post insulator of the present invention is divided into upper and lower sections with the same structural height. From top to bottom, there are shielding ring 1, upper sealing plate 2, upper end flange 3, and upper section shed skirt. Sleeve 4, middle upper flange 5, middle lower flange 6, lower section sheath sheath 7, bottom flange 8, lower sealing plate 9, inside the shed sheath is a core body 10 divided into two parts, the core body It is connected as a whole by the middle upper flange 5 and the middle lower flange 6 .

[0020] The shielding ring 1 with a unique double-ring structure not only improves the overall electric field distribution of the insulator, but also plays a shielding role for the wire connecting fittings, greatly reducing the level of radio interference. The upper end flange 3 is installed to connect...

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Abstract

The very-high voltage composite post insulator used for outdoor open-type power distribution unit comprises: an insulator included a hollow fiberglass-made core body and a silastic-made shed sheath, and a shielding ring fixed on top end of the insulator. This invention divides mechanical strength and outer insulation performance, integrates material advantages, such as resistance to atmospheric pollution, well aging performance and good tension, and fit to running performance index of 1000kV very-high voltage power network.

Description

(1) Technical field [0001] The invention relates to a post insulator, in particular to an ultra-high voltage composite post insulator for an outdoor open power distribution device. (2) Background technology [0002] Traditional insulators such as porcelain and glass insulators are made of an insulating component. This insulating component, ceramic or glass, bears both mechanical and electrical loads. As the voltage level increases, the electromechanical load on the insulator increases. As well as the aggravation of atmospheric pollution, coupled with the hydrophilicity of ceramic or glass surfaces, porcelain or glass insulators expose inherent defects in performance during use. The main manifestations are: insulator breakdown; insulation performance is reduced under polluted conditions, it is easy to break, and the voltage of wet flashover and pollution flashover is low. [0003] At present, most of the post insulators used in power plants and substations at home and abroad...

Claims

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Application Information

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IPC IPC(8): H01B17/14H01B17/32H01B17/38H01B17/42H01B17/00
Inventor 罗融
Owner 山东彼岸电力科技有限公司
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