摘要
文章阐述了线路避雷器设计中应着重考虑的主要问题及解决路径、所应采用的计算方法及取得的结果,并系统地给出了110～500kV线路避雷器技术参数表.文章对硅橡胶材料的优异性能从机理上作出了解析,指出甲基是憎水性的根源,氢氧化铝是耐电蚀的主体,防爆设计应采用楔形嵌槽,并将Solid works三维电场计算与光纤实测相结合寻找最佳电位分布.作者还对避雷器爬电比距的选择提出新的观点,分析了线路避雷器具备的优缺点.
The main problems which should be emphatically considered in the design of the line lightning arrester, the approaches to solve them, the calculation method having to use and the obtained results are expounded, and the list of technical parameters of the line lightning arrester for 110 to 500kV transmission lines are given. The excellent performance of silicon rubber is explained in mechanism and it is pointed out that the methyl offers hydrophobicity and the aluminium hydrate can provide the galvanic corrosion-resisting feature to the line lightning arrester. In the design of the pressure-relief performance for the arrester the structure of wedge notices is used. The optimal potential distribution is found by means of the three-dimension electrical field calculation combined with the practically measured results by optical fibre. A new viewpoint on the selection of the specific creepage distance is put forward and the merits and disadvantages of the line lightning arrester are analyzed.
出处
《电网技术》
EI
CSCD
北大核心
2004年第4期38-42,共5页
Power System Technology
关键词
线路避雷器
电阻片
硅橡胶
绝缘配合
设计
试验
Electric fields
Electric lines
Electric power distribution
Flashover
Hydrophobicity
Optimization
Parameter estimation
Rubber
Silicon
