phase fault

Accurate fault location technique for phase ground fault through high impedance

高阻接地短路的精确测距方法

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In addition, calculation of the branch currents of the whole network under three phase fault is discussed.

文章还进一步讨论了计算短路故障时全网分支电流的方法。

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The lab experiments showed that under the single phase fault status, the system could be accurate and reliable to detect the fault line and to drive the trip.

经实验室试验证明该系统在单相故障状态下能准确可靠地检测出故障线路并驱动跳闸。

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The design of negative sequence protection is mainly introduced with seriously unbalanced power supply voltage fault, open phase fault and two-phase short circuit fault.

从电源电压严重不平衡故障、断相故障和两相短路故障三方面介绍了负序保护方案设计；

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Simulations of 3-phase reactor high temperature superconducting fault current limiter and its impedance

三相电抗器型高温超导限流器的阻抗与动态仿真

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The Analysis and Countermeasure for a Single Phase Fault on a 35 kV Transmission Line

一起35kV线路单相接地事故的分析及对策

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Research on five phase fault tolerant doubly salient electromagnetic generator

五相容错双凸极无刷直流发电机研究

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Effect of Peterson coil on single-phase fault is also discussed.

分析了消弧线圈对 单相 接地故障的影响及其引起故障量的一些新特点.

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Experimental results show that the fault diagnosis method can realize single-phase fault diagnosis effectively and rapidly.

实验验证了该方法能够正确快速地实现 单相 开路故障诊断.

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Analysis Protection of Reactance of Inter-phase Fault

电抗器匝间保护分析

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Is in from the line when Phase fault breakdown, the single-phase earth fault, high breaks by pressing the breakdown three kind of malfunctions, aspect and so on line fault monitor and localization has carried on the detailed elaboration.

从线路处于相间短路故障、单相接地故障、高压断相故障三种故障状态时，线路故障的监测和定位等方面进行了详细的论述。

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Based on the analysis of main fault types of LV ( Low Voltage) flameproof motor, the negative sequence protection principle is proposed for its asymmetric short circuit fault and open phase fault.

通过分析低压隔爆电动机的主要故障类型，针对不对称性短路故障和断相故障提出了采用负序保护原理进行保护的方案。

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Criterion of Single-Phase Ground Fault Type and Its Degree for Distribution Network

配电网单相接地故障类型及程度的判据

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It is implemented by the FTUs' calculating and analyzing for the sampling parameters for the diagnosis of the single phase fault and the phase to phase fault, the fault location, the fault isolation and the analysis and measurement of ground fault.

通过FTU对采集量的计算和分析实现了单相短路和相间短路故障的判断以及故障定位、故障隔离及接地故障分析和检测等功能。

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At the first, the paper analyze the single phase fault and ferroresonance fault, these process are emulated by Matlab.

首先文章对中性点不接地系统发生单相接地以及弧光接地的过程进行分析，并用Matlab对这些过程进行仿真。

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The similarities of the amplitudes and phases between the voltage of opened phase conductor and the sum voltage of two healthy phases are all included in the criterion so that the correlation coefficient of a temporary fault is larger than that of a permanent one.

该判据综合考虑了断开相计算电压与两健全相电压和的幅值与相位的相似性，使瞬时性故障时的相关系数大于永久性故障时的相关系数。

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To get the transient characteristics, according to the mathematical model of three-phase induction motors in α-β coordinate, considering the stator winding terminal voltage constrains condition of fault operation, the practical simulation program was written.

根据三绕组单相电容异步电动机在α-β坐标系下的瞬态数学模型以及故障状态时的端点边界方程，推导出绕组的端电压约束条件，编写计算机仿真程序；

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Negative sequence currents generated in asymmetric short circuit fault and open phase fault are simulated by experiments and the measured experimental results coincide with the requested values, which proves the correctness of protection scheme.

并通过试验方法模拟了发生不对称性短路故障及断相故障时产生的负序电流，试验所得到的实测值和要求值基本吻合，从而验证了保护方案的正确性。

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Wavelets Method to Select Single Phase Fault Circuit for Small Current Grounding Power System

小波变换在小电流接地系统单相接地故障选线方面的应用与研究

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Locating Method for Single Phase Fault Cooperated with FTU in Non-effectively Grounding Network

配合FTU的非有效接地系统单相故障定位方法

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Study on the voltage drop under three phase fault in different fault locations and fault time.

研究三相故障下，不同故障地点和故障时刻下的电压跌落。

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The Application of Wavelet Neural Network in The Fault Diagnosis of Three-Phase Bridge Full-Control Rectification Device

小波神经网络在三相桥式全控整流装置故障诊断中的应用

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Analysis and disposal of single-phase earth fault of power system

电力系统单相接地故障的分析和处理

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Single Phase Fault Detection Techniques Based on Transient Signals in Non-solid Grounded Networks

利用暂态信号的配电网小电流接地故障检测技术

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New Differential Protection Research for Generator Stator Single Phase Ground Fault

故障分量发电机定子单相接地保护应用研究

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Analysis of a Defective Phase Fault on Vacuum Circuit-breaker

高压真空断路器缺相故障分析研究

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This paper discusses the influence of line distribution capacitance on high frequency protection for directional negative phase-sequence and impedance elements, i. e. phase fault element and earth fault element.

本文将讨论线路分布电容对负序方向高频保护和阻抗元件（相间故障和接地故障元件）的影响。

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Detecting the fault line correctly is important to clear the fault and improve power supply reliability when single phase fault occurs in neutral indirectly grounded system.

小电流接地系统发生单相接地故障时，准确检出故障线路对快速排除故障、提高供电可靠性具有重要意义。

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This paper takes a practical primary fault for an example to analyze and calculate, and illustrates that the fault will spread if the B phase fault were not be cut in time.

以一次实际故障为例，进行了分析计算，说明B相故障可能出现切除不及时导致故障扩大。

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Research on Single Phase Grounding Fault Location System for Transmission Line

输电线路单相接地故障定位系统的研究

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