查询词典 fault

Besides, by the application of the two kinds of similar Haar wavelet transforms, typical fault signals in power systems are analyzed. It is proved that the two kinds of similar Haar wavelet transforms are very effective methods of the detection of fault signals in power systems.

此外，本文借助于这两种相似Haar小波变换，分析了电力系统几种典型的故障信号，证明了这两种相似小波变换方法对于检测电力系统故障信号是非常有效的。

Then a series of practical engineering problems, such as the image shaping principle of infrared laser device, the utilizing of infrared laser device in power transformer fault diagnosis, the working procedure in real field operation, the acquiring of heat spectrum from fault transformer in field test, the analyzing of heat image spectrum etc, were considered and overcame.

由于红外诊断具有非接触性和诊断运行中设备的特点，其诊断结果受到外界环境和判别方法的影响，因此提高变压器红外诊断技术的准确性及提高其应用效果具有重要影响，对变压器红外诊断应用技术进行研究具有重要的工程实用价值。

In situation of internal fault, the fault comprehensive component impedance is the impedances of the transmission lines and equivalent sources of system.

利用故障分量综合阻抗的幅值在外部故障时数值较大，而其他情况下数值较小的特点，可靠的识别空投于内部故障的情况。

The fault component comprehensive impedance is excitation impedance when external fault occurs, which magnitude is large and which sign is positive.

利用故障分量综合阻抗在内部故障时符号为负，而外部故障、励磁涌流等情况下符号为正的特点，提出了综合阻抗方向元件，快速灵敏的识别内部故障。

Virtual instrument technology is utilized and products are focused in fault detection system for cable inflator/air pressure monitor system and, fault detection system for communication fibre and it was categorized as 2001 National Torch Plan.

公司应用虚拟仪器技术，专为电信系统研制生产的电缆充气机/气压监测系统、虚拟通信光纤故障检测系统，使得通信故障检测和故障定位更精确，管理更方便，虚拟通信光纤故障检测系统更被列入2001年国家级火炬计划。

At present multi-branched wave winding structure or lap winding structure are adopted in high capacity hydraulic generators, the authors analyze the features of all fault modality that may occur within the generators with these two kinds of stator windings in detail and design a versatile algorithm that can generate respective fault sets.

目前大型水轮发电机定子绕组普遍采用多分支双层波绕或叠绕的结构，文章针对这2种绕组结构，详细分析了发电机内部可能发生的所有故障形式特点，设计了可形成各自故障集的通用算法，并介绍了该算法在三峡左岸Alstom电机和柘溪电站扩建工程发电机定子故障形式分析中的应用。

Another way to limit I〓 is using fault current limiters , which under normal operation have negligible influence on a power system, but in case of a fault will limit I〓 to several times of the normal current.

限制短路电流的另一方法是在电力系统中加入限流器，它在正常工作状态下对系统无影响，而当发生短路故障时，可以迅速将短路电流限制在额定值的几倍范围内。

It is an effective approach to ensure the non-exceeding of the breaking capacity of line breaker by adopting fault current limiter to restrain short-circuit current when the grid is in fault.

采用故障电流限制器来抑制电网故障时的短路电流是保证断路器遮断容量不致超限的有效方法。

As a fault occurred on a distribution line, the breaker and non-communication Protection in the faulted segment's ends will operate to clear the fault segment. The segments of lost power supply will again get power supply from back-up source by the control unit, so that its power supply will be restored.

配电线路发生故障后，故障区段两端的断路器在配电线路无通道保护的作用下动作跳闸，切除故障部分；失去电源的非故障区段在备用电源自动投入单元的控制下，投入备用电源，恢复相应区段的正常供电。

Other conclusion include: the trip of transient protection must be locked when the power circuit breaker of transimission line operated,because the trip is incorrect at this time;the features of transient current and its energy is different between the fault and thunder over- voltage in transimission line,and them can be identified;the ratio of high frequency component of current in serise capaciters compensation line , SVC and HVDC system is far little than fault transient current, so all of them do not affect the working of trasient current protection.

研究了在串联补偿电容的输电线路上发生故障时，串联补偿电容的MOV非线性保护电路对暂态保护的影响。串补电容MOV保护电路的非线性电流高频分量含量很小。静止补偿器、高压直流输电系统换流器的非线性特性产生的谐波分量含量极少。仿真计算表明，在与暂态保护判据中高频分量对应的频率范围内，其电流对应的功率谱估计值大大低于线路故障时故障电流的功率谱估计值，因此它们都不会对暂态电流保护的正常工作产生影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。