With the study on the lightning strike rate of 10 kV overhead transmission lines in urban districts of Jiangmen,China and based on the computational theory of annual lightning strike rate of overhead lines,the theoretical value and the actual value of the annual average lightning strike rate per kilometer are compared and analyzed.
以江门市区10kV架空线路雷击率为研究对象,以架空线路年雷击率计算理论为基础,对年均公里雷击率理论值与实际值进行比较分析。
It is concluded that 1) all formulas dealing with the said protection rage at home and abroad are empirical formulas, for some key influencing factors can not be quantitated; 2) the difference of the protection range stipulated in various documents is the result of different permissible lightning strike probability; 3) absolutizing the protection.
分析了避雷针(线)的防雷保护原理和影响避雷针(线)保护范围的主要因素,认为:1)当今国内外所有避雷针(线)防雷保护范围的计算公式都是经验公式,这是因为影响着避雷针(线)防雷效应的主要因素无法定量;2)所谓避雷针(线)保护范围是相对于被保护物在此空间内遭受雷击的概率而言的,各种文献规定的保护范围不同,是因允许遭受雷击概率不同;3)不能把避雷针(线)保护范围"绝对化"。
For the transmission lines under operation,lightning outage rate can be converted through frequency of lightning outage and line distance.
架空输电线路雷击跳闸率是全面了解线路运行可靠性的一项重要指标。
Basing on Generalized Integral method,completely reckoning in the tripout by induced lightning, the total lightning outage rate we have obtained.
一般而言,评价一条供电线路遭受雷电的主要技术指标是耐雷水平和雷击跳闸率。
Evaluation of lightning trip-out rates for Zhejiang Power Grid by using lightning location systems;
基于雷电定位系统的浙江电网线路雷击跳闸率评估
There are two indexes to evaluate the power line performance on preventing lightning strikes: the one is the lightning trip-out rate,the other is the lightning withstand level of the power line.
衡量线路防雷性能优劣的重要指标有两个:一是线路雷击跳闸率;二是线路耐雷水平。
According to these records,the causes of lightning flashover including shielding failure stroke and back-shielding failure stroke were analyzed and therefore shielding-failure stroke rate and lightning trip-out rate were obtained.
根据220 kV新杭线Ⅰ回路全线1962—1988年实测得到的716次雷击记录,分析了该线雷击闪络原因,求得了绕击率和雷击跳闸率;并根据雷击跳闸率的变化和雷电流在杆塔中的分流情况,说明改进防雷措施。
The calculation results of 4 polar layout of double circuit line show that except polarity configuration mode C lightning flashover rates with other three kinds of configuration modes are not more than 0.
双回线路4种极性排列方式的计算表明,除方式C外,其他3种方式的线路雷击闪络率≤0。
Calculation Method of Lightning Trip-out Rate from Four Circuits on One Tower Transmission Line
同塔四回输电线路的雷击跳闸率计算方法研究
Protections Measures of Reducing the Lightning Trip-out Rate and Lightning-caused Breakage for Distribution Lines
降低配电线路雷击断线和跳闸率的防护措施
Analysis of Lightning Stroke Fault on 500kV Transmission Line
500kV输电线路雷击跳闸故障分析
Proper application of lightning arrester to reduce trip out rate of power transmission lines;
合理应用消雷器 降低线路跳闸率
Analysis and prevention of Lightning Trip-out of Transmission Lines
输电线路雷击跳闸原因分析及防雷措施
Calculation on Shielding Failure Trip-out Rate of 500 kV Transmission Lines with High Tower
500kV高杆塔输电线路绕击跳闸率计算
Analysis on 110kV Transmission Line Tripping Caused by Lightning Stroke and Countermeasures
雷击引起110kV线路运行跳闸分析和改进措施
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
Analysis of Lightning Trip Fault on Transmission Line & Study on Fault Prevention Measure
输电线路雷击跳闸事故浅析及防雷反事故措施的研究
Shielding Failure Flash-over Rate under Conditions of Super-high Voltage Transmission Line in a Mountainous Area
山区超高压输电线路绕击跳闸率的探讨
Calculation of Shielding Failure Flashover Rate on Electric Transmission Line Based on Improved EGM
输电线路绕击跳闸率的改进电气几何模型
Influence of objects on shielding failure rate of transmission line
输电线路旁物体对线路绕击跳闸率的影响
Analysis and countermeasures on 220 kV and above transmission line lightning trip-out
江西电网220kV及以上输电线路雷击跳闸分析及对策研究
Study on Striking Distance Factor and Calculation of Shielding Failure Flashover Rate for Transmission Line Based on Electric Geometry Method;
击距系数及基于电气几何模型的输电线路绕击跳闸率计算的研究
Lightning failure analysis of ±500kV Jiang-Cheng HVDC transmission line
±500kV江城线路雷电跳闸原因分析
Influence of Tripping to Power Grid Frequency and Voltage Stability
机组跳闸对电网频率及电压稳定性的影响
Analysis of Failure Trip Rate of 1000 kV Double Circuits on the Same Tower
1000kV同塔双回线路双回故障跳闸概率分析
Research of Lightning Over-Voltage in UHV Transmission Lines and Secondary Arc after the Single-Phase Trip-out Caused by Insulator-Flash;
超高压输电线路雷电过电压及单相闪络跳闸后潜供电流的研究
