山区35kV线路雷电监测与治理方案研究

来源 :中国电机工程学会高电压专业委员会2015年学术年会 | 被引量 : 0次 | 上传用户:yecao126128
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
本文分析了山区35kV线路直击雷与感应雷的机理及其危害后果;研制开发了一套雷电流在线监测系统,记录了雷电流幅值和雷电发生的时间、地点、次数,实现雷电流的监测及数据分析应用;结合配电线路所在地区的气候条件、地形地貌等特点,提出了线路防雷治理策略与技术方案;试验线路上应用表明,加装钳位保护器治理方案是有效的,提高了线路的可靠性;监测与防治结合的方式,对于雷电流参数的统计、绝缘配合的校核、制定防雷标准和选择防雷方案有着十分重要的指导意义。
其他文献
Gd-doped Bi2O3 visible-light-driven photocatalysts with different Gd loadings (0-4 at%) were synthesized by a simple hydrothermal method.The morphology, structural properties of the as-prepared cataly
Polymer nanofiber membrane is an excellent separator material in lithium ion battery because of their 3D nanoporous structure.Electrospinning is a simple and efficient technique to prepare nanofiber.T
Nowadays, a kind of Novel Carbon-based composites with high surface area and porosity has attracted much more attention for potential applications in such as electrochemistry, biology, and environment
Polyoxometalates are an important and structurally diverse class of metal-oxide clusters which have been found to be extremely versatile inorganic building blocks for the construction of functional ma
Rechargeable lithium-ion batteries (LIBs) have attracted considerable interest as one of the most promising energy storage devices.Nowadays, a major challenge for LIBs is to develop new anode material
Among different sorts of solar cells, the dye-sensitized solar cell (DSSCs) features relatively easy fabrication and low cost.At present, a new-type DSSC, namely fibrous dye-sensitized solar cell (FDS
Developing novel catalysts with efficient electrocatalytic and photoelectrochemical water splitting for the sustainable hydrogen production has attracted much research effort.SiC is a suitable photoca
由于产品材质不均等原因导致电抗器线匝的分布电流不均,从而会导致干式空心电抗器局部过热低绝缘性能,因此我们需要对电抗器个包封层的电流进行测试.本文通过使用干式空心电抗器分支电流测试系统,在工程现场测量电抗器每个分支值电流的实际数据,并以无线通讯的方式将数据接收到pc终端。通过实验可知,干式空心电抗器分支电流测试可在强电场下电抗器各包封层的电流值,这将为研究干式空心电抗器因分支电流不均造成的故障提供重
针对牵引变压器油中金属颗粒群引起的放电问题,以Fluent软件为计算工具,采用固-液两相流理论中的Euler-Lagrange方法,模拟牵引变压器内部油道中运动金属颗粒群的分布状态.用标准k-ε湍流模型对流动的变压器油进行描述,同时用颗粒轨道模型对油中金属颗粒群进行描述.在对颗粒轨道模型进行定义时,从颗粒受力情况、颗粒湍流扩散以及固-液两相耦合3方面进行设置,从变压器油中金属颗粒尺寸、油流速度和油
特高压直流输变电工程的建设对换流变压器油纸绝缘系统的可靠性提出了更高的要求,绝缘纸作为油纸绝缘的重要组成部分,其性能的好坏关系到电力系统安全和设备安全。热压作为绝缘纸生产制备的关键工艺,为探究其对绝缘纸机械、电气性能的影响,分别在6 MPa、9 MPa、12 MPa、15 MPa的热压压力下制备绝缘纸试样.对所得试样,测试了紧度、拉伸强度,体积电阻率,介电特性和击穿特性.结果表明:随着热压压力从6