WO2015078015A1 - 一种1200kV特高压棒形悬式复合绝缘子 - Google Patents

一种1200kV特高压棒形悬式复合绝缘子 Download PDF

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Publication number
WO2015078015A1
WO2015078015A1 PCT/CN2013/088249 CN2013088249W WO2015078015A1 WO 2015078015 A1 WO2015078015 A1 WO 2015078015A1 CN 2013088249 W CN2013088249 W CN 2013088249W WO 2015078015 A1 WO2015078015 A1 WO 2015078015A1
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Prior art keywords
shaped suspension
composite insulator
uhv
rod
shed
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Ceased
Application number
PCT/CN2013/088249
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English (en)
French (fr)
Inventor
王政涛
林慧
郑琰
张烽
李宏伟
张志伟
郭慧豪
任文静
贾中伟
何桂兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHENGZHOU XIANGHE GROUP ELECTRIC EQUIPMENT MANUFACTURING Co Ltd
Zhengzhou Power Supply Co of State Grid Henan Electric Power Co Ltd
State Grid Corp of China SGCC
Original Assignee
ZHENGZHOU XIANGHE GROUP ELECTRIC EQUIPMENT MANUFACTURING Co Ltd
Zhengzhou Power Supply Co of State Grid Henan Electric Power Co Ltd
State Grid Corp of China SGCC
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Application filed by ZHENGZHOU XIANGHE GROUP ELECTRIC EQUIPMENT MANUFACTURING Co Ltd, Zhengzhou Power Supply Co of State Grid Henan Electric Power Co Ltd, State Grid Corp of China SGCC filed Critical ZHENGZHOU XIANGHE GROUP ELECTRIC EQUIPMENT MANUFACTURING Co Ltd
Publication of WO2015078015A1 publication Critical patent/WO2015078015A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
    • H01B17/48—Means for obtaining improved distribution of voltage; Protection against arc discharges over chains or other serially-arranged insulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
    • H01B17/325—Single insulators consisting of two or more dissimilar insulating bodies comprising a fibre-reinforced insulating core member

Definitions

  • the invention relates to a composite insulator, in particular to a 1200kV UHV rod-shaped suspension composite insulator.
  • insulators As a special insulation control, play an important role in overhead transmission lines.
  • Existing insulators have problems such as extremely uneven electric field distribution and excessive connection of porcelain glass insulators. They cannot adapt to extreme operating environments such as high humidity and high temperature of UHV transmission lines, and may cause various changes due to environmental and electrical load conditions. The failure of electromechanical stress damages the use and operating life of the entire line.
  • the object of the present invention is to provide a 1200kV UHV rod-shaped suspension composite insulator, which can adapt to extreme operating environments such as high humidity and high temperature of UHV transmission lines, and has light weight, high strength, hydrophobic and hydrophobic surface of silicone rubber surface. Good mobility, high flashover voltage, etc.
  • a 1200kV UHV rod-shaped suspension composite insulator consisting of two insulators with a voltage rating of up to 1200kV connected in series by a connecting fitting, each insulator comprising a core rod and a jacket and an umbrella skirt sleeved on the mandrel.
  • a pressure equalizing ring is arranged at both ends of the core rod, and a pressure equalizing ring on the side of the wire is a double pressure equalizing ring.
  • the double layer equalizing ring has an upper layer diameter of 900 mm and a lower layer diameter of 350 mm.
  • each of the insulators is 4973 ⁇ 50 mm; the height of the two insulators after series connection is 9946 ⁇ 100 mm.
  • the shed that is sleeved on the mandrel is composed of a large structure shed and a small structure shed.
  • the large structure shed has a diameter of 205 mm and the small structure shed has a diameter of 175 mm.
  • the invention has the advantages of light weight, high strength, good hydrophobicity of the surface of the silicone rubber, good water migration and high flashover voltage, and can meet the UHV transmission line by providing a double-layer equalizing ring and a special shed design method on the side of the wire. Operational requirements in extreme weather conditions such as high humidity and high temperatures.
  • Figure 1 is a schematic view of the structure of the present invention.
  • the present invention consists of two insulators connected in series by connecting the fittings 1, and the connecting fittings 1 are respectively disposed at both ends of each insulator, and the highest voltage rating of the insulator is 1200 kV.
  • Each of the insulators includes a core rod 2 and a sheath 5 and a skirt 4 sleeved on the core rod 2.
  • the two ends of the core rod 2 are provided with a pressure equalizing ring 3, which can improve the uneven distribution of the electric field of the entire insulator. The adverse effects of excessive connection of porcelain glass insulators are avoided.
  • the mandrel 2 is located on the wire side and the pressure equalizing ring 6 adopts a double layer equalizing ring.
  • the upper layer of the double layer equalizing ring has a diameter of 900 mm and the lower layer has a diameter of 350 mm, which can be gradually pressure-graded step by step, thereby effectively improving the electric field distribution.
  • the shed 4 which is sleeved on the mandrel 2 is composed of a large structure shed and a small structure shed, and has the advantages of large creepage distance, and can fully realize the UHV insulator under various extreme weather conditions and serious pollution areas. Anti-fouling flashover function.
  • the large structure shed has a diameter of 205 mm and the small structure shed has a diameter of 175 mm.
  • each insulator is 4973 ⁇ 50 mm; the height of the two insulators after series connection is 9946 ⁇ 100 mm, which is convenient for transportation and installation during the erection of UHV transmission lines.
  • the rod-shaped suspension composite insulator of the invention can adapt to high temperature and high humidity climate and has good electrical performance.
  • the utility model has the advantages of light weight and strength by providing a double-layer pressure equalizing ring 3 and a special umbrella skirt 4 on the side of the wire.
  • the high-silicone rubber surface has the advantages of good hydrophobicity and hydrophobic migration, high flashover voltage, etc., and can meet the operation requirements of UHV transmission lines under extreme climatic conditions such as high humidity and high temperature.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)

Abstract

一种1200kV特高压棒形悬式复合绝缘子，由两个通过连接金具（1）串联的电压等级最高为1200kV的绝缘子组成，每个绝缘子包括芯棒（2）和套设在芯棒上的护套（5）与伞裙（4），芯棒（2）的两端设置有均压环（3，6）,且位于导线侧的均压环（6）采用双层均压环。

Description

一种 1200kV 特高压棒形悬式复合绝缘子
技术领域
本发明涉及一种复合绝缘子，尤其涉及一种1200kV特高压棒形悬式复合绝缘子。
背景技术
特高压交流输电技术的研究始于60年代后半期，当时西方工业国家的电力工业处在快速增长时期，美国、前苏联、意大利、加拿大、德国、日本、瑞典等国家都制定了本国发展特高压的计划。前苏联从70年代末开始进行1150KV输电工程的建设，1985年建成埃基巴斯图兹一科克切塔夫一库斯坦奈特高压线路。日本从1973年开始特高压输电的研究，目前已建成全长426公里的东京外环1000kV特高压输电线路。而我国的特高压交流输电技术则处于起步阶段。目前，我国的人均用电水平远低于发达国家，在未来几十年内，我国的电力负荷将会保持较高的增长速度，因此，伴随着全国联网和西电东送的电网发展趋势，发展我国特高压输电技术极为重要。
在特高压输电线路中，绝缘子作为一种特殊的绝缘控件，在架空输电线路中起到重要作用。现有的绝缘子存在电场分布极不均匀、瓷玻璃绝缘子连接节点过多等问题，无法适应特高压输电线路的高湿度、高温度等极端运行环境，会由于环境和电负荷条件发生变化导致各种机电应力失效，损害整条线路的使用和运行寿命。
发明内容
本发明的目的是提供一种1200kV特高压棒形悬式复合绝缘子，能够适应特高压输电线路的高湿度、高温度等极端运行环境，具有质量轻、强度高、硅橡胶表面憎水及憎水迁移性好、污闪电压高等优点。
本发明采用下述技术方案：
一种1200kV特高压棒形悬式复合绝缘子，由两个通过连接金具串联的电压等级最高为1200kV的绝缘子组成，每个绝缘子均包括芯棒和套设在芯棒上的护套与伞裙，芯棒的两端设置有均压环，且位于导线侧的均压环采用双层均压环。
所述的双层均压环上层直径为900mm，下层直径为350mm。
所述的每个绝缘子的高度4973±50mm；两个绝缘子串联后的高度为9946±100mm。
所述的套设在芯棒上的伞裙由大结构伞裙与小结构伞裙组合而成。
所述的大结构伞裙直径为205mm，小结构伞裙直径为175mm。
本发明通过在导线侧设置双层均压环及特殊伞裙设计方法，具有质量轻、强度高、硅橡胶表面憎水及憎水迁移性好、污闪电压高等优点，能够满足特高压输电线路在高湿度、高温等极端气候条件下的运行需要。
附图说明
图1为本发明的结构示意图。
具体实施方式
如图1所示，本发明由两个通过连接金具1串联的绝缘子组成，连接金具1分别设置在每个绝缘子的两端，绝缘子的最高电压等级为1200kV。每个绝缘子均包括芯棒2和套设在芯棒2上的护套5与伞裙4，芯棒2的两端设置有均压环3，能够改善整个绝缘子电场分布极不均匀的问题，避免了瓷玻璃绝缘子连接节点过多带来的不良影响。芯棒2位于导线侧均压环6采用双层均压环，双层均压环上层直径为900mm，下层直径为350mm，能够逐级均压，有效改善电场分布。套设在芯棒2上的伞裙4由大结构伞裙与小结构伞裙组合而成，具有爬距大的优点，能够充分实现特高压绝缘子在各种极端气候条件下和严重污秽地区的防污秽闪络功能。大结构伞裙直径为205mm，小结构伞裙直径为175mm。
本发明中，每个绝缘子的高度为4973±50mm；两个绝缘子串联后的高度为9946±100mm，便于在特高压输电线路架设过程中运输及安装。
本发明所述的棒形悬式复合绝缘子能适应高温高湿气候，具有较好的电气性能，通过在导线侧设置双层均压环3及特殊的伞裙4设计方法，具有质量轻、强度高、硅橡胶表面憎水及憎水迁移性好、污闪电压高等优点，能够满足特高压输电线路在高湿度、高温等极端气候条件下的运行需要。

Claims (5)

  1. 一种1200kV特高压棒形悬式复合绝缘子，其特征在于：由两个通过连接金具串联的电压等级最高为1200kV的绝缘子组成，每个绝缘子均包括芯棒和套设在芯棒上的护套与伞裙，芯棒的两端设置有均压环，且位于导线侧的均压环采用双层均压环。
  2. 根据权利要求1所述的1200kV特高压棒形悬式复合绝缘子，其特征在于：所述的双层均压环上层直径为900mm，下层直径为350mm。
  3. 根据权利要求1或2所述的1200kV特高压棒形悬式复合绝缘子，其特征在于：所述的每个绝缘子的高度4973±50mm；两个绝缘子串联后的高度为9946±100mm。
  4. 根据权利要求3所述的1200kV特高压棒形悬式复合绝缘子，其特征在于：所述的套设在芯棒上的伞裙由大结构伞裙与小结构伞裙组合而成。
  5. 根据权利要求4所述的1200kV特高压棒形悬式复合绝缘子，其特征在于：所述的大结构伞裙直径为205mm，小结构伞裙直径为175mm。
PCT/CN2013/088249 2013-11-28 2013-11-30 一种1200kV特高压棒形悬式复合绝缘子 Ceased WO2015078015A1 (zh)

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CN106410797A (zh) * 2016-11-21 2017-02-15 国网山东省电力公司电力科学研究院 一种基于大气污染物粒度的输电线路路径选择方法
CN107091968A (zh) * 2017-04-28 2017-08-25 新疆天成鲁源电气工程有限公司 智能绝缘子及其使用方法
CN109243729A (zh) * 2018-09-20 2019-01-18 南方电网科学研究院有限责任公司 一种均压环金具
CN110349715A (zh) * 2019-08-01 2019-10-18 萍乡市环宇电瓷厂 一种支柱型防风绝缘子
CN110416194A (zh) * 2019-06-11 2019-11-05 全球能源互联网研究院有限公司 一种用于压接型igbt的绝缘框架结构
CN110534266A (zh) * 2019-08-22 2019-12-03 国家电网有限公司 一种稳定性强的悬式复合绝缘子
CN112854876A (zh) * 2017-06-09 2021-05-28 江苏神马电力股份有限公司 复合横担及输电杆
CN115624023A (zh) * 2022-08-18 2023-01-20 国网宁夏电力有限公司石嘴山供电公司 一种聚氨酯分体式防鸟伞罩
CN115985594A (zh) * 2022-12-30 2023-04-18 南阳金牛电气有限公司 一种内置限压元件的防雷绝缘子串

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CN106019011A (zh) * 2016-05-24 2016-10-12 中国南方电网有限责任公司电网技术研究中心 直流电缆试验终端装置
EP3333858A1 (de) * 2016-12-06 2018-06-13 Bayernwerk AG Hochspannungsisolator mit lichtbogenschutzring
CN107393661A (zh) * 2017-07-25 2017-11-24 江苏祥源电气设备有限公司 一种复合绝缘子防鸟害均压环
CN112447338A (zh) * 2019-08-28 2021-03-05 国家电网有限公司 高海拔地区试验用±1500kV分段复合绝缘子耐张串
CN112289524B (zh) * 2020-10-22 2021-07-30 广东电网有限责任公司电力科学研究院 改善直流输电线路复合绝缘子电场分布的组合绝缘子
CN115558239A (zh) * 2022-10-08 2023-01-03 国网河南省电力公司电力科学研究院 一种绝缘子的硬质材料、制备方法及复合串联绝缘子

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CN106410797A (zh) * 2016-11-21 2017-02-15 国网山东省电力公司电力科学研究院 一种基于大气污染物粒度的输电线路路径选择方法
CN106410797B (zh) * 2016-11-21 2018-12-04 国网山东省电力公司电力科学研究院 一种基于大气污染物粒度的输电线路路径选择方法
CN107091968A (zh) * 2017-04-28 2017-08-25 新疆天成鲁源电气工程有限公司 智能绝缘子及其使用方法
CN112854876A (zh) * 2017-06-09 2021-05-28 江苏神马电力股份有限公司 复合横担及输电杆
CN109243729A (zh) * 2018-09-20 2019-01-18 南方电网科学研究院有限责任公司 一种均压环金具
CN109243729B (zh) * 2018-09-20 2023-12-22 南方电网科学研究院有限责任公司 一种均压环金具
CN110416194A (zh) * 2019-06-11 2019-11-05 全球能源互联网研究院有限公司 一种用于压接型igbt的绝缘框架结构
CN110349715A (zh) * 2019-08-01 2019-10-18 萍乡市环宇电瓷厂 一种支柱型防风绝缘子
CN110534266A (zh) * 2019-08-22 2019-12-03 国家电网有限公司 一种稳定性强的悬式复合绝缘子
CN115624023A (zh) * 2022-08-18 2023-01-20 国网宁夏电力有限公司石嘴山供电公司 一种聚氨酯分体式防鸟伞罩
CN115985594A (zh) * 2022-12-30 2023-04-18 南阳金牛电气有限公司 一种内置限压元件的防雷绝缘子串

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