inrush相关论文
With the rapid development of the transportation industry in China,the number and scale of tunnel construction are incre......
,Study on the genesis of karstic collapse column and characteristics of high resolution seismic data
On the standpoint of the disaster prevention from water inrush, discussed the genesis and geologic condition of karstic ......
Four-dimensional Visual Analysis and Design Optimization of LC Filters at DC Side of Single-phase Di
The rectifier filter However, it is difficult to circuit is widely applied. gain a global solution for the optimization......
针对110 kV系统投切MCR磁控补偿装置过程中产生的涌流以及器件两端的过电压进行了研究.该MCR磁控补偿装置由MCR磁控电抗器支路和2～5......
Four-dimensional Visual Analysis and Design Optimization of LC Filters at DC Side of Single-phase Di
The rectifier filter However, it is difficult to circuit is widely applied. gain a global solution for the optimization......
A water-resistant key strata model of a goaf floor prior to main roof weighting was developed to explore the relationshi......
基于励磁涌流明显的奇异特征和短路电流近似正弦波的特点，提出了一种利用网格分形原理识别励磁涌流和内部故障电流的新方法。介绍了......
提出了一种基于变压器绕组参数辨识原理的变压器保护算法。在正常运行状况下（包括励磁涌流），由变压器原、副边绕组电阻、漏感和互感磁......
针对灯火寨隧道突涌灾害的处理。首先,孔隙度、饱和含水量和单轴抗压强度等试验揭示蚀变导致岩体的物理力学性能显著劣化(硅化凝灰......
提出了一种基于离散小波变换（DWT）并利用小波能熵作为判据来识别电力变压器励磁涌流和内部故障电流的方法.通过在MATLAB上搭建变压器......
Hydrogeochemical Characteristics and Groundwater Inrush Source Identification for a Multi-aquifer Sy
Correct identification of water inrush sources is particularly important to prevent and control mine water disasters.Hyd......
Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong
Mud and water inrush in tunnel is a common problem in the construction process. Nowadays, the research and classificatio......
本文通过对电力变压器空载投入励磁涌流进行频谱分析，提出在计算机变压器纵联差动保护中利用直流分量进行制动，以避开变压器空载投入......
介绍了一个模拟铁磁元件磁滞特性的新数学模型。铁磁元件多值的磁滞特性被等值地模拟为一个极限磁滞回线和局部磁滞回线，极限磁滞回......
为研究松散层下开采次生小断层对工作面涌砂的影响,以山东省横河煤矿1931W工作面突砂事故为例,采用ANSYS有限元数值模拟方法,分析......
Energy analysis of rock plug thickness in karst tunnels based on non-associated flow rule and nonlin
The geological hazards, such as water inrush and mud outburst, are easily induced by the high water pressure caverns ahe......
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提出了一种基于小波包变换的识别变压器励磁涌流的新算法。该算法能正确地区分带长线和不带长线励磁涌流与变压器的各种典型内部故......
芦岭煤矿南风井巨厚松散层段井筒涌水，采用地面注浆堵水方法获得成功。本文着重介绍地面注浆堵水钻孔布置、注浆参数选择及工艺系统......
介绍了发电厂起备变冷备用运行方式下厂用电切换的过程及控制原理,对影响起备变冷备用运行的变压器空投时差动保护误动作、母线失......
依靠有限元分析软件ADINA并采用流固耦合算法对断层突水模式进行数值模拟,分析在不同的流体压力作用下,液固互动作用对多孔介质变......
在详细推导单相励磁涌流的傅里叶级数表达式基础上,分析出涌流波形中各次谐波之间满足一定的相位关系,即单相涌流中基波相位与2次......
探讨了GE变压器保护中采用二次谐波附加相位制动原理的适用范围，该原理是从单相变压器涌流特征分析而得到的，但在三相变压器中并不一......
利用相似材料模拟试验，模拟了采场底板突水机理。实验表明，在无断层构造条件下，底板在承压水作用下呈Ｏ－Ｘ型破坏，并且在Ｏ与Ｘ的交点处最容易产......
针对1 000 k V特高压试验示范工程现场调试过程中特高压调压变压器差动保护的典型误动案例,分析了现阶段采用的二次谐波分相闭锁判......
A Simulation Study of Support Break-Off and Water Inrush during Mining under the High Confined and T
The thick Cenozoic unconsolidated aquifer is deposited under Sunan syncline core in Huaibei coalfield, the water yield p......
In this paper,a combination of field measurement,theoretical analysis and numerical simulation were used to study the ma......
在我国华北煤田石炭-二叠纪煤系地层的底部,存在着含水丰富的奥陶纪石灰岩.由于受采动的影响,煤层岩层的渗透能力会发生明显的变化......
Accident Analysis and Emergency Response Effect Research of the Deep Foundation Pit in Taiyuan Metro
Taking the deep foundation pit accident occurring at a station of metro Line 2 in Taiyuan as an example,the influence of......
To the complication and uncertainty in coal seam floor water-inrush monitoring, Internet of Things (IoT) perception is a......
The method is based on that the waveform of the inrush distorts seriously, while the fault current nearly keeps sinusoid......
The effect of different phase compensation methods on second harmonic ratio of magnetizing inrush is investigated. The f......
Research on the Reason for Transformer Differential Protection Mal-operation Caused by Sympathetic I
The paper is concerned with whether CT transient saturation, which caused by sympathetic inrush, is the direct reason fo......
Investigation and Mitigation of Transformer Inrush Current during Black Start of an Independent Powe
The energizing of large power transformers has long been considered a critical event in the operation of an electric pow......
In this study, we will cover the basic methods used to distinguish between inrush current and fault current in power tra......
In tunnel construction,groundwater is often dried up,and vegetation around the tunnel is exhausted due to excessive wate......
Water inrush and mud gushing are one of the biggest hazards in tunnel construction. Unfavorable geological sections can ......
