short fault

So the time of Ucos φ detecting three-phase short-circuit fault in power swing process is shortened, and the performance of whole protective device is improved.

因此可以大大缩短Ucosφ作为电力系统振荡过程发生三相短路判别元件的动作时间，提高整套保护的性能。

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In the neutral-point solid ground three-phase network, single-phase earth fault and two phase earth fault almost account for 85 per cent in all short-circuit fault.

单相接地短路和两相接地短路是中性点直接接地的三相电网中最常见的故障，约占所有短路故障发生总概率的85%。

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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

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Further analysis of single-phase ground fault other than the failure of the formation process, and the failure process of voltage and current wave recording records and found that most of the short circuit between phases is also due to the initial single-phase ground fault evolved.

进一步分析单相接地故障以外的故障的形成过程，以及故障过程中电压、电流的录波记录，发现大多数相间短路也是由于最初的单相接地故障发展而来的。

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The formulae for SMIS are derived and verified by case simulation, the solution of critical clearing time ( CCT) of three-phase short fault in MMS is theoretically discussed.

对单机无穷大母线系统进行了公式推导和仿真验证，从理论上探讨了多机系统的三相短路故障临界切除时间求解方法。

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This paper finally to synchronous generator of three-phase short-circuit as example, using four order Runge Kutta method to simulate synchronous generator three-phase short-circuit fault phenomenon, and the real-time simulating and analyzing the simulation step on the single DSP, obtained the ideal simulation step.

文章最后以同步发电机三相短路故障为例，采用四阶龙格库塔法在单台DSP上进行了实时仿真并对仿真步长进行了比较分析，得出了实时仿真较为理想的仿真步长。

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Simulating Study on Three-phase Induction Motor with Short-circuit Fault Operation

三相感应电动机短路故障运行的仿真研究

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Application of the algorithm ensures that the result of Ucos φ is accurate, convergent and the true expressions of the voltages and currents in the site of relay when power swing and three-phase short-circuit fault happens at the same time.

用此算法求出的Ucosφ数值精度高，收敛性好，更真实地反映了电力系统振荡过程中发生三相短路时保护安装处电压和电流的变化；

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After a short description of an intelligent BIT test adapter, the paper mainly discusses the principle of back driving, back driving technology in fault injection and the feature of back driving based fault injection.

文章首先简单介绍了智能化BIT测试适配器，接着重点阐述了后驱动技术的原理、后驱动故障注入的实现及后驱动故障注入的特点。

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In order to greatly enhance the zero-sequence current active component during the single-phase ground fault, the short-time switch and the resistance paralleled with the petersen coil were controlled when there is a permanent single-phase ground fault in the system.

该方法当系统发生永久性单相接地故障时通过控制开关短时投切与消弧线圈并联的电阻，从而大大增强单相接地故障时的零序电流有功分量。

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