Partial Discharge Measurement and Analysis of Gap in Oil-Paper Insulation Model under Lightning Impulse Voltage 雷电冲击电压下油纸绝缘气隙模型的局部放电测量与分析
Lightning arrester, voltage limiter and surge suppressor for a voltage exceeding 1000V 超过1000V电压用避雷器、限压器和平压装置
Rated lightning impulse withstand voltage 额定雷电冲击耐受电压
Influence of lightning induced voltage on lightning withstand level of transmission lines 感应过电压对输电线路耐雷水平的影响
The urgency of strengthening lightning and over voltage protection of telecontrol equipment is expounded with specific measures presented. 阐述了加强远动设备防雷及过电压保护的紧迫性,并提出了具体的防护措施。
Analysis of the surface flashover on GIS basin insulator under lightning impulse voltage GIS绝缘子在冲击电压下沿面闪络的分析
Discussion on Lightning Protection Over Voltage Protection of Light Current System 弱电系统雷电及过电压防护探讨
The discharging curves for power frequency voltage and lightning impulse voltage are measured and its fluctuation range caused by variation of air condition is found. 该式能把工频电压和雷电冲击电压下空气隙的放电曲线箍在特定的范围内。
Clean fog will cause a significant increase of the breakdown voltage for AC particularly for lightning impulse voltage. 清洁雾有助于提高空气间隙的放电电压,特别是雷电冲击放电电压;
Study of Flashover Characteristics of Artificial Contaminated Insulator under Lightning Impulse Voltage Superimposed on Power Frequency Voltage 人工污秽绝缘子工频下叠加雷电冲击的闪络特性研究
In this paper, some examples of electronic instruments damaged by induced lightning voltage are introduced, and the mechanism of the mentioned damage analyzed. 基于电子设备遭受雷击的实例,分析了其受雷击损坏的机理。
The discharge phenomena in the rod-plane gaps applied by standard lightning impulse voltage in air-water two-phase mixture are also investigated experimentally. 本文对气水混合两相体中棒-板电极间隙的直流放电现象进行了实验研究。
Experiments snow that adding 10% air to SF6 gas can apparently increase the lightning impulse breakdown voltage of SF6 in a highly non-uniform electric field. 实验表明,在SF6中加入10%的空气可明显提高在极不均匀电场中的雷电冲击击穿电压。
The results show the pre-existing DC voltage reduces ( or increases) the lightning flashover voltage with an amount which just equals to the value of applied DC voltage no matter where the lightning impules is applied on the tower or the conductor. 从实验结果表示:预加的直流电压使绝缘子串的雷电闪络电压降低(或增加),不论雷电冲击是施加于铁塔上还是导线上,其值都等于所加的直流电压。
Exploitation of a New Lightning Induced Voltage Simulation Software 一种新型感应过电压数字仿真软件的开发
Insulation characteristics of vacuum gap under standard lightning impulse voltage are studied in this paper. The influence of factors such as the released energy of each breakdown and the time interval between twice applied voltage on the U-t characteristics of vacuum gap are the analyzed. 研究了真空间隙在标准雷电冲击电压作用下的绝缘特性,分析了击穿放电能量和加压时间间隔等因素对真空间隙伏秒特性的影响。
Electronics Damaged by Lightning Induced Voltage 电子设备遭受雷击感应过电压事故分析
The Breakdown Behavior of Rod-rod Short Air Gaps under Non-standard Lightning Impulse Voltage 非标准雷电冲击电压下棒&棒小空气间隙放电研究
Equation for Transient Voltage at the Tested Line Terminal of Transformer when Applying lightning Impulse Voltage Superposed on Power-Frequency Voltage 变压器冲击试验中叠加工频电压时的受试端子上的电压过渡过程表示式
Flashover characteristic along surface under lightning impulse voltage 雷电冲击电压下沿面闪络特性的研究
The probability distribution of the obtained experimental breakdown voltage is related to the test procedure and the original probability distribution of lightning impulse breakdown voltage of oil gap. 得到的试验击穿电压的概率分布与试验程序及油过原始的雷电冲击击穿电压的概率分布有关。
The generation mechanism of lightning induced voltages on distribution line is studied in this paper, it is pointed out that electrostatic induction component is main part of lightning induced voltage, analysis harm of lightning induced voltages. 文中对配电线路感应雷过电压产生机理进行了探讨,指出静电感应分量是配电线路感应雷过电压的主要构成部分,分析了感应雷过电压危害。
GIS is designed as an Enclosed SF6 Gas-Insulated Switchgear comprising device, including the breaker, isolating gear, bus, lightning arrester, voltage mutual inductor, current mutual inductor and bushing, insulated with SF6 gas. GIS是SF6全封闭组合电器,是由断路器、隔离开关、母线、避雷器、电压互感器、电流互感器、套管等电气元件组合而成,采用SF6气体作为绝缘介质。
Calculation method of lightning induced voltage is given by solving electrostatic induction voltage model of overhead line. 通过对架空线路雷击静电感应过电压模型的求解,给出了感应雷过电压的计算方法。
Steel shielding layer can effectively reduce the role of the higher frequency components in lightning electromagnetic pulse, So 400kHz~ 1MHz frequency components of lightning induced voltage on buried control cable are significantly reduced. 钢带屏蔽层能够有效地降低雷电电磁脉冲中较高频率分量的作用,从而使控制电缆雷电感应电压400kHz~1MHz的频率分量大幅度减少。
The operating converter transformer? not only withstands superimposed AC-DC voltage, but also subjected to various operative-over voltage, lightning impulse voltage and polarity reversal voltage effects, these will bring serious challenges to valve side winding insulation. 运行中的换流变压器除受到交直流叠加电压外,还要承受各种操作和雷电冲击过电压以及极性反转电压的作用,给阀侧绕组的绝缘带来严重挑战。
The physical, chemical and electrical properties of nano-modified insulating vegetable oil is tested. The research focuses on that the failure behavior of nano-modified insulating vegetable oil under power frequency and lightning impulse voltage. 研究了纳米改性植物绝缘油的理化和电气性能,重点测试了纳米植物绝缘油在工频和雷电冲击电压下的击穿特性。