+/-800kv ultra-high voltage DC synthesized insulator

A technology of composite insulators and UHV DC, applied in the direction of organic insulators, insulators, insulated conductors, etc., can solve problems such as long strings, increased tower body weight and tower head size, and increased project cost

Active Publication Date: 2007-03-07
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, porcelain insulators or glass insulators are used, the string length is too long and the weight is too heavy, so that the weight of the tower body and the size of the tower head are greatly increased, which increases the cost of the project. Problems such as the sharp increase in the workload of operation and maintenance such as zero measurement and cleaning
The use of composite insulators can solve the above problems well. However, judging from the actual operation of the external insulation of the ±500kV and ±600kV EHVDC transmission systems that have been put into operation at home and abroad, most of them are not ideal, and the external insula

Method used

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  • +/-800kv ultra-high voltage DC synthesized insulator
  • +/-800kv ultra-high voltage DC synthesized insulator
  • +/-800kv ultra-high voltage DC synthesized insulator

Examples

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Embodiment Construction

[0033] See accompanying drawings 1 and 2 for the embodiments. The shed shed 30 is based on 110-2 methyl vinyl silicone rubber, adding reinforcing agent fumed silica, flame retardant aluminum hydroxide micropowder, and an appropriate amount of Auxiliary agent and vulcanizing agent, its preferred formula is as follows:

[0034] Serial number Raw material name Weight ratio

[0035] (1) Methyl vinyl silicone rubber 110-2 100

[0036] (2) Fumed silica 35

[0037] (3) Aluminum hydroxide fine powder 125

[0038] (4) Blue masterbatch 1508# 0.07

[0039] (5) Black masterbatch 1800# 0.64

[0040] (6) Zinc dioxide 5

[0041] (7) A-151 1

[0042] (8) Hydroxy silicone oil 5

[0043] (9) H-containing silicone oil 1

[0044] (10) Methyl silicone oil 201 10

[0045] (11) Triethanolamine 0.89

[0046] (12) DCP 1.11

[0047] Among them, the silicone rubber is a combination of several silicone rubbers with different vinyl content, the molecular weight is 600,000 silicone rubber, and t...

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Abstract

This invention relates to insulator technique field and to one insulator of +-800kV with direct current, wherein, the umbrella cover uses 110-2-methyl-vinyl ketone as base and adds strengthening agent gas phase white carbon and aluminum hydroxide powder and proper assistant agent and sulfuration agent for mixing; using total injection process to make the silicon glue under high pressure into umbrella cover on the mill surface with continuous distribution with ball heads and ball socket structure ware into one integrated insulator.

Description

Technical field: [0001] The invention relates to the technical field of insulators, in particular to a ±800kV UHV DC composite insulator. Background technique: [0002] Insulators include porcelain insulators, tempered glass insulators, and silicone rubber composite insulators. Porcelain insulators have a long history, and their mechanical and electrical properties meet the requirements of all levels of voltage. Therefore, they have been widely used in AC and DC transmission systems. However, with the increasing air pollution, especially the more serious pollution of the DC system, the weakness of porcelain insulators to rapidly degrade in performance under dirty and humid conditions has gradually been exposed, and line pollution flashover accidents have occurred from time to time. For this reason, people have improved the appearance of porcelain insulators, and designed antifouling products such as bell jar, double umbrella, and triple umbrella, but the application effect o...

Claims

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Application Information

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IPC IPC(8): H01B17/00H01B3/44H01B3/00
CPCH01B3/28H01B7/295
Inventor 赵杰李立浧饶宏梁曦东罗兵张德进黄梓容谢从珍刘铁桥赵天任
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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