A fast transfer criterion is presented,using the product of the initial frequency difference of the bus residual voltage after outage and the dead beat voltage RMS(Root Mean Square) between the standby power supply voltage and the bus residual voltage to predict the impulse current.
分析了发电厂厂用电源现有快切装置的现状和依据,提出了通过计算备用电源电压和母线残压之间的差拍电压有效值与断电后母线残压初始频差的乘积,以预测冲击电流的大小,并以此为判据的快切新原理。
From the view of point of factors that influence measuring accuracy of impulse current system,the many problems which include the selection of voltage reference end,connecting manner of converting apparatus and self electromagnetic interference of impulse current system are studied.
从影响冲击电流系统测量精度的因素出发,试验研究了系统接地点、转换装置的连接方式及系统自身的电磁干扰等对测量精度的影响。
Starting from the circuit theory, the RLC impulse current cir(?)it for non-linear resistances are studied.
在线性RLC冲击电流发生回路研究的基础上,提出了非线性被试品冲击电流发生回路的设计原则:当线性调波电阻取值为非线性被试品动态电阻范围的(0。
Test of densification effect of surge current on compacted iron powder;
冲击电流对粉末压坯致密作用的试验
Analysis of surge current due to closing loop in distribution grid;
配电网络合环冲击电流的分析
The mathematical model of closing loop operation is established and a method for surge current calculation based on Thevenin s equivalent is proposed in this paper.
针对合环操作冲击电流可能越限的问题,提出一种基于戴维南等值的冲击电流计算方法。
The paper puts forward to a producing impact large current method using low energy power supply and measure impact current through introduced loop.
文章提出了一种利用低能电源产生冲击大电流的方法 ,并且通过罗果夫斯基线圈对冲击电流进行了测试。
Aim This paper is to provide a measurement method of impact current and verify the accuracy of the experimental model.
目的 提供一种冲击电流的测量方法并用实际测量结果验证有关经验模型的实用性 。
When the author tests the property of the normal aviation motor by using RTTB-3, she discovers that the design of RTTB- 3 neglects the effect of the impact current when it is loaded, which leads to the errors in the surveyed motor proprety data graph recorded.
在实际使用该型试验台测试正常航空电机性能中，发现该型试验台在设计上没有考虑加载时冲击电流的影响，使记录的被测电机性能数据曲线有误差。
This paper proposes a novel method of suppressing the inrush current of transformers.
提出了抑制变压器冲击电流的新方法。
Article describes the principle of inrush current.
浅述了变压器的冲击电流的形成原理,认为主要是由于外部瞬间电流导致磁路趋向饱和,而磁路中的剩磁则加剧了这个饱和程度,最大冲击剩磁通,使这两者同向叠加。
This article describes that rush current does harm to xenon lamp from its structure and working principal.
围绕氙灯的构造及其工作原理就冲击电流对氙灯损害进行讨论，针对当前ＷＬＣ系列和ＧＦＡ系 列等整流器产品，普遍对冲击电流没有控制或控制不佳所造成的对氙灯的损害，提出对ＧＦＡ０２ －１５０／３５型整流器原磁饱和电抗器回路增力。
The electrical properties of the PTC materials were investigated by current impacting.
用电流冲击法对炭黑填充高密度聚乙烯(CB/HDPE)PTC材料的稳定性,即重复使用性进行了研究,结果表明用1～3A的电流冲击最能有效地改善本配方PTC材料的性能和稳定性,具有广阔的实用价值。
virtual origin of impulse current
冲击电流波视在原点
Analysis of the Telegraph Building's Surge Current
通信机楼停电时冲击电流的测试分析
Apparatus Used to Measure Grounding Resistance Based on the Impulse Current
基于冲击电流法测量接地电阻的装置
Design of Pulse Current Measurement and Control System Based on LabVIEW
基于LabVIEW的冲击电流测控系统设计
Solution of Inrush in Transformer
变压器冲击电流机理和解决方案分析
Simulation of Effect of Varistors on Output Characteristics of Impulse Current Circuit
压敏电阻对冲击电流回路输出特性影响的仿真
Impact of Current Measurement by Grounding Impedance Network System Design;
用冲击电流法测量接地网阻抗系统的设计
Design of Apparatus for Measuring Grounding Impedance Based on the Impulse Current
基于冲击电流法测量接地阻抗装置的设计
Experimental Investigation of 50 Hz Continuous Current of Switching Type SPD under Different Impulse Currents
开关型SPD在不同冲击电流下的工频续流实验研究
This voltage has some assumed value of impulse current through it, plus an additional voltage related to the distance between the arrester and that point.
此电压值为设定冲击电流流过避雷器时的电压,再加上避雷器与该点间距离所相关的附加电压。
The Automatic Measuring System of PTC Thermistor on AC Characteristics;
PTC工频电流冲击特性测试系统的开发
Impulse Characteristics of Grounding Electrode under Lightning Current;
雷电流流过接地电极时的冲击特性研究
High-frequency Current Transducer for Measurement of PD Under Impulse Voltage
冲击电压下局部放电测量用高频电流传感器
Surges (Lightning or Switching Surges).
冲击(雷电冲击或操作冲击)。
Research on the Pulse Degradation and Destruction mechanisms of Zinc Oxide Varistors with Double-pulse Current;
双脉冲电流作用下氧化锌电阻冲击老化破坏机理的研究
Research on Cooling Method of Electronics Based on Jet Impingement
基于冲击射流的电子器件冷却方法研究
FDTD Analysis of the Step-voltages near a Grounding Electrode under Impulse Current Discharge
冲击泄流时接地体附近跨步电压的FDTD分析
FDTD ANALYSIS OF THE DISTRIBUTION OF POTENTIAL RISE AROUND THE GROUNDING CONDUCTOR DISCHARGING IMPULSE CURRENT
冲击泄流时接地体周围电势分布的FDTD分析