• Then a strong current of electrons follows that path from the cloud to the ground, and it is that current that illuminates the channel as the lightning we see.

    然后一股强大的电子电流沿着这条路径,从云层到达地面,正是这种电流像我们看到的闪电一样照亮了通道。

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  • The aim of grounding is to provide the discharging channels for fault current and lightning current and ensure the safety of the system, the equipment and the personnel.

    接地的目的是提供故障电流和雷电流泄流通道,保证系统、设备和人员安全。

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  • The formula can reflect the influence of the wavefront steepness of lightning current on the transient magnetic field.

    该公式可计及雷电流波头陡度对磁场的影响。

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  • The paper introduces the development process of a new lightning flashover current sensor and main problem solved, and gives the research result.

    介绍了一种雷击闪络电流传感器的研制过程,及其解决的主要问题,给出了研究成果。

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  • The light pulses during a flash were found to well correspond with that of electric field change and lightning current.

    闪电的光脉冲与闪电电流脉冲和地面电场变化有很好的对应关系。

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  • A method of calculating the lightning current distribution on the metal frame of building by using electromagnetic transient program (EMTP) was presented.

    提出了一种利用电磁暂态程序(EMTP)来计算雷击发生时建筑物内部金属框架上雷电电流分布的方法。

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  • The calculated results show that the line ZnO surge arrester can withstand the discharge current and the absorbed lightning energy.

    分析表明,绕击时避雷器能够耐受雷电作用时的放电电流和吸收的雷电放电能量。

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  • Safety protection power circuit: Constant current control circuit, high standard standard protection system: preventing high voltage, temperature, surge, lightning and so on.

    安全防护电源电路:恒流驱动电路,高标准防护系统:对过压、过热、浪涌、防雷具有良好的保护作用。

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  • The harm from lightning is analyzed in this paper, and it is demonstrated that low impedance pass should be provided in aircraft design for lightning current.

    本文分析了雷电造成的危害,并论述了飞机结构设计应该为雷电流提供低阻抗的通路。

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  • In the transient process of lightning, the lightning current flowing in all the branches will cause transient magnetic field in the inner space of the substation building.

    在这一雷电暂态过程中,各分支上流过的雷电流将在建筑物的内部空间产生暂态磁场。

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  • By the combined lightning locating system, the time, the position, the amplitude of lightning current, the parameters of lightning, etc, can be precisely measured.

    采用雷电综合定位系统,可精确测出雷电发生的时间、地点、雷电流幅值等雷电参数。

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  • By using the lightning data from 2002 to 2004 in Suzhou, lightning characteristics such as monthly variation, daily variation, intensity of lightning current and lightning density are analyzed.

    利用苏州地区2002 ~ 2004年闪电定位系统监测资料,分析了该地区地闪的月变化、日变化、强度、闪电密度等特征。

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  • Lightning is a rush of electrical current from a cloud to the ground or from one cloud to another.

    闪电是一种云和地面或是云和云之间产生的电流冲击。

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  • The max lightning steepness and lightning peak current have the important significance to the base researching work of the lightning-protection in the power system and the lightning characteristics.

    在电力系统防雷保护与雷电特性基础研究工作中,雷电流的最大陡度、幅值具有重要的意义。

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  • The sensitivity of the proposed protection scheme is not impacted by the factors such as transition resistance, lightning stroke, fault type, load current and operating mode of power system.

    该保护方案的灵敏度不受过渡电阻、雷击、故障类型、负荷电流、系统运行方式等因素的影响。

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  • The lightning is the current from the cloud layer to the cloud layer or from the cloud layer to ground.

    闪电是从云层到云层或从云层到地面的电流。

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  • Methods to measure the lightning surge current using a shunt with non-inductance resistors network. The experiments on the repetition, linear degree and the step response are carried out.

    方法用无感电阻网络分流器测量雷电冲击电流,并进行测量重复性、线性度试验和阶跃波响应试验。

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  • The waveform of step voltage calculated from a triggered lightning current is obtained and it is identical to the measured result.

    根据人工引雷实测电流计算了其近区跨步电压的波形,取得了与实测数据一致的结果。

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  • Too much electric current may flow into a circuit as a result either of a fault in the circuit or of an outside event such as lightning.

    当电路出现故障或发生外部事件如闪电时,就可能造成过量的电流流入电路。

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  • There was positive correlation between lightning current and relative light intensity.

    闪电电流与其通道的相对光强有很好的正相关。

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  • Because there is inductive voltage in the lightning lines, which will produce current, power energy will be wasted in the lightning line, even if the power system runs normally.

    但是即使在正常运行情况下,避雷线也会感应出电压,从而形成电流,造成电能损耗。

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  • The utility model relates to a lightning arrester installation in network equipment of direct current power supplying system, particularly relates to an angle type lightning arrester.

    本实用新型涉及在直流供电系统网络设备中避雷器的安装,特别 涉及一种角型避雷器。

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  • This article expounds the lightning protection and earthing of weak current system for intelligent building. It emphasizes lightning electromagnetic pulse.

    对智能建筑弱电系统的防雷接地进行详细阐述,并对防雷击电磁脉冲部分着重说明。

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  • With such model the effect of tower structure, lightning current amplitude, angle of the lightning incidence, as well as the ground angle on the shielding failure rate are analyzed.

    应用改进的电气几何模型分析了输电线路杆塔结构、避雷线和导线的布置、雷电流的幅值、地面倾角对绕击率的影响。

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  • Zinc oxide lightning arrester discharge frequency, leakage resistance current, and capacitive current can be output digitally with interface RS485.

    氧化锌避雷器放电次数及泄露电阻电流、电容电流可用RS485接口以数字量输出。

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  • Resistance-reducing agent does not reduce the impulse grounding resistance under large lightning current.

    降阻剂并不能降低接地极在强雷电流下的冲击接地电阻。

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  • The electrical elements connected include circuit breaker disconnector and earthing switch current transformer voltage transformer lightning arrester bus etc.

    连接的电气元件有断路器、隔离开关与接地开关、电流互感器、电压互感器、避雷器、母线等。

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  • Monitor every feed-voltage and feed-current of DC output, every output state of switch, and state of fuse and lightning arrester. Under abnormal condition, monitor produces aural and visual alarm.

    监测各直流馈电输出的电压、电流,各馈电输出开关状态、熔断器状态和防雷器状态,当发生异常情况时发出声光报警;

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  • Monitor every feed-voltage and feed-current of DC output, every output state of switch, and state of fuse and lightning arrester. Under abnormal condition, monitor produces aural and visual alarm.

    监测各直流馈电输出的电压、电流,各馈电输出开关状态、熔断器状态和防雷器状态,当发生异常情况时发出声光报警;

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