特高压GIS出线套管用空心复合绝缘子运行性能分析

发布时间：2018-10-20 11:04

【摘要】：研究特高压GIS空心复合绝缘子运行特性,可为我国特高压工程同类产品的结构设计、产品制造和运行检修提供参考。本文通过对荆门特高压变电站HGIS组合电器出线套管用空心复合绝缘子进行连续3年监测,并对运行3年后更换的一只1 000 k V空心复合绝缘子进行了拆解及试验研究,对比分析了特高压空心复合绝缘子在运行前后其绝缘结构、机械结构、密封结构的性能变化。结果表明,特高压空心复合绝缘子总体运行良好。运行绝缘子的机械性能、界面性能、密封性能、材料性能等各项技术指标仍满足现行标准要求。与初始设计相比,除伞套材料硬度外,其他性能指标未见明显变化。后续工程制造和使用时应重点优化硅橡胶材料配方,关注材料硬度变化。
[Abstract]:The operation characteristics of UHV GIS hollow composite insulators are studied, which can be used as a reference for the structural design, manufacture, operation and maintenance of similar UHV engineering products in China. In this paper, the hollow composite insulator used in the outlet sleeve of HGIS combined electrical equipment in Jingmen UHV substation is monitored for 3 consecutive years, and a 1 000 kV hollow composite insulator which has been replaced after 3 years of operation has been disassembled and tested. The performance changes of insulation structure, mechanical structure and sealing structure of UHV hollow composite insulator before and after operation are compared and analyzed. The results show that the UHV hollow composite insulator works well. The mechanical performance, interface performance, sealing performance and material performance of the running insulator still meet the requirements of current standards. Compared with the original design, the other performance indexes did not change obviously except for the hardness of the umbrella sleeve material. The following engineering should focus on optimizing the formula of silicone rubber material and paying attention to the change of material hardness.
【作者单位】：国家电网公司;中国电力科学研究院;江苏神马电力股份有限公司;
【基金】：国家电网公司科技项目(编号:SGTGYJSFW(2012)306号)
【分类号】：TM216

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