A new transient fault simulating reappearing system is proposed and developed.
提出并研制了一种新型电力系统暂态故障模拟再现系统。
A new intelligent on-line capturing of the optimal reclosing time of transient fault is presented.
提出了一种新的智能实时捕捉方法，对瞬时性故障的最佳重合闸时间进行了捕捉。
The self-adaptive reclosure, which is aimed to distinguish the transient fault and the permanent fault, can reduce the power loss caused by faults and enhance the stability of power system.
区分瞬时性和永久性故障为目的的自适应重合闸，能减少故障对电能的损失，增强电网的稳定性。
In this method the transient fault signals are analyzed with wavelets transform to obtain the transient fault information, and the fault circuit is selected by the synthetic phase comparison method.
该方法利用小波变换分析所采集的故障暂态信号，提取用于选线的暂态信息，并采用综合相位比较法确定故障线路。
While fault occurs there is a transient or steady-state response to the power network.
出现故障时，对电网有一个暂态或稳态的快速响应。
Some of the conclusions of the transient analysis may be used in rotor winding fault diagnosis.
动态分析的某些结论可以用于进行电机转子绕组故障诊断。
Results with data, table and graph are provided through the analysis of fault recorder documents based on COMTRADE (Common Format for Transient data Exchange for power system).
系统通过对基于COMTRADE格式故障录波文件的分析，以数据、表格和图形的方式综合显示分析结果。
By digital simulation and detection of gearbox fault signal the detection effect of the novel bilinear time-frequency transform is validated for the transient components in complex signal.
通过数字模拟实验与齿轮箱故障信号检测，验证了新的双线性时间-频率分布对复杂信号中瞬时分量的探测效果。
With regard to the transient calculation of internal faults, the effect of saturation is more serious since the degree of saturation is changed during the fault.
而对内部故障的暂态计算，饱和因素的影响更严重，因为在内部故障的过渡过程中饱和程度也会随时间而变化。
Based on the traveling wave, double ended approach only deals with the first transient traveling wave reaching the two buses of the fault line.
基于行波的输电线路双端测距算法只用到到达故障线路两侧母线的第一个故障初始行波波头，其可靠性较高。
The paper discuss the singularity detection theory of wavelet transform, this theory is applied to analysis of fault characteristics of the transient traveling waves.
本文讨论了小波变换及小波变换的奇异性检测理论，并将其应用于暂态行波故障特征的分析。
The transient numeric simulation and relevant experiments of stator winding inter-turn short circuit fault of asynchronous motor are conducted using multi-loop mathematic model.
基于多回路数学模型，对异步电动机定子绕组匝间短路故障瞬变过程做了数字仿真，并完成了相关物理实验。
The restriction of transient voltage dip is a constraint on post fault power system.
暂态电压跌落限制可以考虑为对故障后电力系统的一个约束。
The extracted fault characteristics of transient zero sequence current is looked as condition attributes and the multiple of signal enhancement is.
将提取的暂态零序电流故障特征作为条件属性，信号增强倍数作为决策属性，构成一个决策系统。
The method deseribed can solve some problems associated with other direction relay based on fault transient signals.
本文的方法解决了其它故障暂态量方向保护普遍存在的一些问题。
The research on the fault level of tie line is of significance for the security and stability evaluation of power system as well as the preventive control of transient stability.
研究联络线故障水平对电力系统暂态稳定性的影响，对于电力系统的安全稳定评估与校核，以及暂态稳定预防控制都有着重要意义。
Moreover, it is the basis of constructing a new non communication protection through absolutely utilizing the fault information which is comprised in transient component of fault current or voltage.
高压输电线路发生故障后的暂态电压或电流分量中包含比工频分量更多的故障信息，充分利用这一信息是构成具有绝对选择性单端无通信保护的前提。
A direct method considering transient voltage dip is proposed to calculate the critical clearing time (CCT) ensuring that voltages of post fault power system are higher than limit.
提出了一种考虑暂态电压跌落限制的直接法，快速求取保证故障后电力系统电压高于限值的故障临界清除时间(CCT)。
Wavelet packets with the advantage of time frequency zoom is used in this paper to decompose the post fault transient electrical quantities by the proper frequency span.
应用在时频空间皆具有良好聚焦特性的小波包，以适当频率带宽，对故障后暂态电气量进行分解。
The mathematics and simulation model for transient and fault overvoltage are established and their generation mechanisms, harm and characteristic are analyzed.
针对试验过程中可能产生的瞬时过电压和故障过电压分别建立了数学和仿真模型，分析了过电压的产生机理、危害及特点。
But it can not make good analysis of the soft fault signal in the circuits which is random and unstable or can not reflect and extract the transient characters of the soft fault signal.
而要检测软故障，就要针对电路中的软故障信号进行分析，提取能够反映软故障信号的特征值。
Begin with chapter 4, the influence of Fault Current Limiter (FCL) with controllable series compensation on improving transient stability of power systems is described.
从第四章开始主要研究具有可控串联补偿功能的故障限流器(FCL)对改善电力系统暂态稳定性的影响。
When grounding fault happens at the time when current is zero, the transient value is too small, in order to prevent it, the paper brings forward the current increment method to select faulty line.
为防止在电流过零点附近发生的接地故障时的暂态量太小，论文提出利用电流增量进行故障选线。
This paper analyzes the necessity of fault diagnosis in transient procedure and discusses the different vibration characteristics in transient and stable procedures.
讨论了一般机械在瞬态过程和稳态过程中所呈现出的不同振动特性，提出了基于瞬态过程分析机械故障诊断的必要性。
Dynamic stress is caused by the radiation of seismic wave, so the dynamic stress is transient. The time that acted on fault plane in the vicinity is limited.
由于动应力是伴随地震波传播而出现的，因此，动应力变化量是暂态的，作用于邻近断层面上时间有限。
Utilizing the recorded fault data to replay the transient process, the dynamic load model could be verified by the comparison between measured curves and simulation ones.
利用故障录波信息重演负荷特性的暂态过程，通过实测曲线和负荷模型仿真曲线的比较，进行负荷动特性模型的校验。
By comparing the average transient power supply currents, we could distinguish a fault circuit from a fault free circuit.
通过比较两者平均动态电流的大小，我们能够区分出故障电路和无故障电路。
But there are few theories and methods for the analysis of the transient characteristics of DC line fault.
然而，目前对直流线路故障暂态特性仍缺乏系统、深入的理论研究。
But there are few theories and methods for the analysis of the transient characteristics of DC line fault.
然而，目前对直流线路故障暂态特性仍缺乏系统、深入的理论研究。
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