The analysis shows that the measured impedance at the head of the line is not proportional to the fault distance when a three-phase fault occurs at the end of the line.
分析表明，线路末端三相故障时，线路首端的测量阻抗不与故障距离成正比。
Stator phase failure is one typical fault of a three-phase induction motor.
缺相故障是三相感应电动机的典型故障之一。
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。
This paper introduces a novel short circuit fault current limiter applicable to the three-phase ungrounded power systems.
介绍了一种适用于三相不接地系统的短路故障限流器。
Then base on the former research platform, an simulation of the core saturation instability caused by three-phase grounding fault is processed, thus the new judgment method is validated.
并基于直流输电开发研究平台，对三相接地故障激发的铁心饱和不稳定现象进行了仿真研究，验证了该方法的正确性。
They provide system security and immediate reliable low level ground fault detection on three-phase AC resistance grounded or grounded electrical distribution systems.
此类继电器能够增加系统安全性，并对三相交流接地电阻或接地配电系统进行可靠的低级接地故障检测。
This paper presents a fault diagnosis method for neutral grounding three-phase bridge type solid-state fault current limiter (SSFCL).
探讨了中性点接地三相桥式固态限流器桥路故障诊断方法。
The presented control strategy is tested and verified by three-phase short circuit fault and the results show that this control strategy is effective and reliable.
同时，针对三相短路故障，用数字仿真对控制策略进行了验证，结果表明该控制策略是有效可靠的。
Electrical products which have LCD time counter, Layer sensor, Three-phase AC fault protection relay and so on.
其中电器类产品有液晶显示计时计数器、平层感应器、断相错相三相交流保护继电器等等。
The vibration fault of three-phase induction motor makes the equipment run unsafely.
三相异步电动机出现异常振动，使设备运行存在着不安全隐患。
For future fault diagnosis and troubleshooting, the working voltage and the three-phase current can be preserved when the oil-extractor has fault.
该设备还可将出现故障时的工作电压、三相电流值保存下来，作为日后故障诊断及故障排除的依据。
For future fault diagnosis and troubleshooting, the working voltage and the three-phase current can be preserved when the oil-extractor has fault.
该设备还可将出现故障时的工作电压、三相电流值保存下来，作为日后故障诊断及故障排除的依据。
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