instantaneous fault
英 [ˌɪnstənˈteɪniəs fɔːlt]
美 [ˌɪnstənˈteɪniəs fɔːlt]
网络 瞬时性故障
双语例句
- The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
应用瞬时值对称分量变换，可提取电压、电流故障分量的正序空间向量。 - The switches reclose at optimal reclosure time by phases for instantaneous fault and are sequential tripped at optimal trip time, when the reclosure fails.
瞬时故障时，在最佳合闸时刻分相重合，若重合不成功，在最佳跳闸时刻分相跳闸； - Analysis of the Instantaneous Electromagnetic Properties During Three-phase Balanced Short Circuit Fault of Circuit Breaker for Voltage Generator
发电机保护断路器三相对称短路暂态电磁分析 - A Likelihood Ratio Method Based on Instantaneous Abrupt Changes in Fault Diagnosis of Dynamic System
动态系统故障诊断中基于瞬间跳变的似然比方法 - Further more, the switches reclose at optimal reclosing time by phase for instantaneous fault and shut down reclosure for permanent fault.
瞬时故障时在最佳重合时刻分相重合，永久故障时闭锁重合闸。 - With the decomposition of wavelet package, the coefficients of each node are achieved. With some filter algorithm, the instantaneous signal with fault characteristic is strengthened.
小波包三层分解得到各个节点的分解系数，通过一定的削减算法使得故障瞬态信号的特征得到加强，再根据重构的时域信号计算各个节点对应的能量，作为特征向量训练LVQ神经网络。 - The results verify that with the help of SSFCL the instantaneous fault surge is limited remarkably and quickly, and the instantaneous power quality is improved to a certain extent.
仿真结果证明，当系统发生短路故障时，通过SSFCL快速而有效的限流作用，可以很好地改善该系统的电能质量。 - Application of the instantaneous speed in fault diagnosis of the multi-cylinder diesel engine
瞬时转速在多缸柴油机故障诊断中的应用 - Application of instantaneous power decomposition technique in induction motors stator fault diagnosis
瞬时功率分解算法在感应电机定子故障诊断中的应用 - Since the GPS based clock synchronization technique has been successfully applied in line current differential protection, it's possible to make tripping decision by using instantaneous value of fault component.
GPS时钟同步技术在电流纵差保护中的成功应用，为利用瞬时值进行动作判定提供了条件。 - Introducing the principle of adaptive instantaneous trip current protection, the discrimination method of short circuit fault type, the real time and on-line calculation method of system impedance, the calculation method of jump-value of current and the protection area of adaptive instantaneous trip current protection respectively.
介绍了自适应电流速断保护的原理，短路故障类型的识别方法，系统阻抗的在线实时计算方法，电流突变量的提取方法及自适应电流速断保护的保护范围。 - Diagnosis and clearance of oil pressure instantaneous drop fault in a ZW-33/ 30 type oxygen compressor
ZW-33/30型氧压机油压瞬降故障诊断与排除 - According to distributed power system fault characteristic, a new criteria based on the transient high frequency instantaneous zero-sequence power is put forward to distinguish the fault line in this paper with multi-resolution analysis of wavelet and the difficulty of frequency zone selection in wavelet application is overcome.
在配电网故障特征的基础上，利用小波包分析技术提出了一种基于暂态高频零序瞬时功率的配电网故障选线新判据，解决了小波应用中频带选取困难的问题。 - Their common shortcoming is that they act blindly entirely before reclosing and can not distinguish instantaneous fault from permanent fault.
它们共同的缺点就是在重合闸之前，完全是盲目的动作，无法区分线路发生的是瞬时性故障还是永久性故障。 - The integrating criterion for distinguishing permanent or instantaneous fault condition is put forward using voltage amplitude of fault-phase, phase relationship of voltages between fault line and no-fault lines, and harmonic of fault phases voltage.
提出采用故障相电压幅值大小，故障相电压与非故障线路电压之间的相位比较，以及故障相电压谐波大小的综合判据，以区分永久性故障与瞬时性故障，实现有选择的单相自动重合闸。 - Fluctuation Measuring of Instantaneous Angular Velocity and Fault Diagnosis for Rotating Machinery
旋转机械的瞬时角速度波动量化及故障诊断 - The likelihood ratio method based on instantaneous abrupt changes can well diagnose single fault source [ 1].
基于瞬间跳变的似然比法￣〔1〕能较好地诊断出单故障源。 - Results from simulation and experiments by hardware platform show that the proposed method can distinguish ferroresonance, single-phase instantaneous grounding fault from single-phase permanent grounding fault correctly.
仿真结果和硬件实验平台实验结果表明该方法能正确地将铁磁谐振、单相瞬时性和单相永久性接地区分开。 - By analyzing the transient process of single-phase to ground fault in distribution networks, the expression of zero sequence voltage and zero sequence current was given. And instantaneous zero sequence power was defined and taken as characteristic quantity of fault line selection.
通过分析配电网单相接地故障的暂态过程，给出了配电网单相接地故障时零序电压和各条线路的零序电流的瞬时表达式，定义了瞬时零序功率并将其作为故障选线特征量。 - But in some cases, adaptive reclosing can confound instantaneous fault with permanent fault, so it has fault too.
但自适应重合闸在某些情况下，会分不清线路到底发生了瞬时性故障还是永久性故障，仍有一定的缺陷。 - Especially, SAIS ( Sinusoidal Approximation of Instantaneous Signal) is presented for instantaneous signal processing under fault circumstance, whose foundation is instantaneous amplitude and phase.
特别是就故障时的瞬变信号提出了正弦逼近处理方法，该方法的理论基础是瞬变信号的瞬时幅值和相位表示方法，这种表示方法与传统表示方法在结果上是一致的。 - The instantaneous overcurrent protection can only protect a part of the line, the other internal fault can only be protected by the time delay instantaneous overcurrent protection and definite time overcurrent protection.
电流速断保护只能保护线路全长的一部分，其保护范围以外的区内故障需要通过延时由限时电流速断保护甚至定时限过电流保护来切除。 - The rotor broken bar fault feature component can be extracted based on instantaneous frequency estimation using the intrinsic mode function component which includes rotor broken bar fault information.
通过计算包含故障信息的本征模函数分量的瞬时频率，检测出转子断条故障。 - Data acquisition interface complete the data communications, testing, receiving, and drawing the instantaneous speed waveform using the data collected after the treatment in order to fault diagnosis.
数据采集界面完成数据的通讯，检测，接收，并将采集的数据经相应的处理后，将瞬时转速的时频域波形显示出来，以利于故障诊断。 - We comprehensively analyze the fault diagnosis, rotor field orientation and speed identification, and find that instantaneous reactive power can be used not only for traction motor rotor fault diagnosis, but also for field oriented control and speed identification.
对故障诊断、转子磁场定向以及速度辨识进行综合分析和研究，发现利用物理量瞬时无功功率能同时进行牵引电机转子故障诊断、磁场定向校正和速度辨识。 - Only in the implementation of instantaneous reclosure failure to prevent a permanent fault conditions coincide huge impact on the system.
只在瞬时性故障时实施重合闸，避免了永久性故障情况下重合对系统的巨大冲击。 - It is found that the methods of Bi-spectrum and STFT to analyze the instantaneous speed can be used to judge the happened of the fault and the fault degree, also and given a new way to deal with the signal of instantaneous speed.
采用双谱分析法和STFT时频分析法对瞬时转速信号进行分析，可以判断故障的发生及故障的严重程度，为瞬时转速信号处理提供了新的思路。 - Three kinds of formulas are derived for the reference current in dual dq frame. The simulation results verify that the inverter can produce balanced currents, constant instantaneous active power or constant instantaneous reactive according to the grid fault type and the utility network necessity.
推导出3种正负序dq参考电流的计算公式，可以根据电网要求及故障类型，灵活选择对称对流控制、稳定瞬时有功功率控制或稳定瞬时无功功率控制，仿真结果证实了这些公式的正确性。 - By the instantaneous rotational speed detection, analysis and processing, using the instantaneous speed fluctuation method of fault diagnosis method to achieve the outside characteristics and work of uniformity of diesel engine.
通过对瞬时转速参数的检测、分析和处理，采用瞬时转速波动法的故障诊断方法来实现对柴油机外特性和工作均匀性的研究。