Analysis of Wire Breakage Accident by Lightning Stroke of Mine Line of Zhengzhou Mining Group and Its Countermeasures 郑州煤业集团矿山线雷击断线事故的分析与对策
Characteristics Identification of Voltage Sag Caused by Lightning Stroke and Short-circuit Faults 雷击与普通短路故障引起的电压凹陷特征
Analysis on Lightning Stroke Tripping of 220 kV Double Circuit Transmission Lines on the Same Tower 220kV同塔双回输电线路雷击跳闸原因分析
Gate valves are normally used for on-off service and are not recommended for throttling service. Analysis on Lightning Stroke Accident in 220 kV Transmission Line During Single-Phase Reclosure of Line Breaker and Its Electromagnetic Transient Simulation 闸阀通常应用于开启-关闭场合,不能用于节流应用。线路开关单相重合闸期间雷击事故及电磁暂态仿真
LWY: How do we select or determine the parameters of a direct lightning stroke and how do we adequately protect against it. 我们应如何选择或决定一个直击雷击的参数并如何给设备提供足够的保护措施?
Identification Method of Lightning Stroke and Short-circuit Faults Using S-transformed Characteristics 雷击与短路故障的S变换特征量识别方法
Should external electric and telecommunication lines entering structures with external lightning protection system ( LPS) be protected against the effect of a direct lightning stroke striking that LPS? 带有外部雷击防护系统(LPS)的外部电力线及通信线在进入建筑物时,是否应进一步考虑防护,以避免直击雷对LPS的影响?
The insulation-tube arrester has a series of characters which are better than the common lightning arrester through lightning stroke experiments. 通过绝缘管型引雷针与普通导体避雷针的雷击模拟实验对比,得到其一系列优良特性。
According to the research achievements of lightning protection for wind turbine generators, the lightning stroke process and damage mechanism of wind turbine generators and its lightning protection technology are discribed comprehensively. 本文结合风电机组防雷的研究成果,对风电机组的雷击过程、击损坏机理以及防雷措施进行了较全面的阐述。
Automatic Monitoring System of Lightning Stroke Proof Measure of Some Hydropower Station 某水电站内部观测自动化系统防雷措施
Far away in a storm-location center, a radio-locater can pinpoint the lightning stroke. 在远处的暴风探测中心,无线电定向器能准确地给闪电定位。
Locating Method of Short-circuit Point for Transmission Lines Under Lightning Stroke Fault 输电线路雷击故障情况下的短路点定位方法
In the factors influencing the secure operation of wind farm, the lightning stroke is an important one. 在影响风电场安全运行的诸多因素中,遭受雷击是一个重要方面。
When working on lightning and rainy days, the operating personnel is likely to be hit by lightning stroke and unexpected casualty may be caused. 操作人员在雷雨天气工作时,有可能遭雷击,造成意外伤亡事故。
The complete cable has good performances such as resistance to electromagnetic interference and lightning stroke. 具有较强的抗电磁干扰和抗雷击等性能。
Analysis and Countermeasure on Lightning Stroke Tripping of Transmission Lines in Tongling Power Grid 铜陵电网输电线路雷击故障分析及对策
In recent years, the incidents of broken strand of OPGW cable by lightning stroke at home are occurred for many times, some solving schemas are emphasized from system design aspect to solve this problem. 近年来,国内的光纤复合架空地线光缆OPGW光缆出现了多次雷击断股的事件,一些解决方案强调从系统设计方面来着手解决这一问题。
Based on the knowledge of physical process of downward lightning stroke and the study of shielding failure dispersal of transmission line, a lightning stroke simulation model on lightning shielding performance of transmission line is presented, in which the discharge dispersal is taken into account. 基于对下行雷闪物理过程的认识和对输电线路绕击分散性的研究,建立了考虑放电分散性的输电线路雷屏蔽性能的雷击仿真模型。
This paper analyses the incident of 110 kV main transformer subjected to lightning stroke, and presents related anti-measures. 介绍了110kV六店变电所主变遭受雷击损坏事故的分析,并提出了防范措施。
A simulating experiment on the effectcau; ed by lightning stroke on microwave communication towers were carried out. 本文介绍了雷击微波塔时天馈线电缆分流和机房内磁场强度的模拟试验结果。
Research on the Key of Lightning Protection Systems Engineering and Influence Analysis of Lightning Stroke on Intelligent Building 智能建筑的雷击影响分析与防雷系统工程关键问题的研究
A lot of lightning impulse and power frequency arcing tests are performed with shunt gap test specimen, and test results show that shunt gap can effectively make insulator strings and wires exclusive from ablation of power frequency arc incurred by lightning stroke. 对并联间隙试品进行了大量的雷电冲击和工频电弧试验,结果表明并联间隙能有效保护绝缘子串和导线免于雷击引起的工频续流电弧的烧蚀;
Through the analysis of the accident of lightning stroke occurred in computer centre, some lightningproof and earthing measures to ensure network safety are put forward. 通过对洪钢计算机中心机房雷击事故分析,采取了计算机机房的防雷和接地措施,确保了网络的安全。
Study on transient characteristics of overhead transmission lines due to direct lightning stroke is significant to the development of transient based protection and its reliability improvement. 研究和识别输电线路直击雷的暂态特征对研制基于暂态量的保护及提高其可靠性都具有十分重要的意义。
The influence of induced voltage of lightning stroke to the transmission line tower on the lightning withstand level of transmission line through the field-line coupling mechanism are analyzed. 文章分析了雷击输电线杆塔时产生的感应过电压通过场线耦合机制对输电线路耐雷水平的影响。
Simulation of Overvoltage and Flashover Caused by Lightning Stroke at Towers of HVDC Transmission Line 雷击高压直流线路杆塔时的过电压和闪络仿真研究
The main contents and aims of lightning stroke assessment are discussed. 对雷击风险评估的主要内容和目的进行了探讨。
Lightning stroke fault may cause power interruption and over-voltage due to lightning stroke may do harm to electronic apparatus. 雷击故障能够造成电力中断,雷击产生的过电压,会对用户微电子设备造成损害。
Faults induced by lightning stroke on the transmission line become a global difficult problem in the power supply security. 电力系统由于雷击输电线路引起的故障已成为困扰安全供电的一个普遍难题。