本文介绍了一种小电流系统单相故障接地选线的新方法即遥感式选线装置的原理及应用。
This paper introduces principle and application of a new method circuit selection for small current system when single phase grounding failure happens, namely remote sensing circuit selection device.
仿真结果表明此算法减小了传统方法受波速、线路长度、故障接地电阻因素的影响，提高了故障测距的精度。
The simulation results shows that it decreases the negative influence made by wave velocity, line length and faults grounding resistance factors, and also improves the accuracy of faults locations.
分析了采用小电阻接地系统的必要性及该系统的故障特性。
The necessity of low resistance ground system and its fault characteristic were analyzed.
包括一个电子接地故障断路器立即终止权，如果该单位是暴露于水或其他液体，可能导致短路。
An included Electronic Ground Fault circuit Interrupter immediately terminates power if the unit is exposed to water or other liquids that could cause a short circuit.
应指定接地故障断路器的电气预防维护任务，此项任务要求对装置进行定期测试。
There is an electrical preventive maintenance task assigned to the Ground Fault Circuit Interrupter, that requires periodic testing of the unit.
只要湿气可能接触到电器设备或使用者，则都应配备接地故障断路器。
Ground fault circuit interrupters are required whenever moisture may contact electrical equipment or the user.
发电机还包括125伏14A条接地故障电路灭弧贮和支持的为期1年的有限质保。
The generator also includes 125-volt 14A ground fault circuit interrupter receptacles and is backed by a 1-year limited warranty.
《美国国家电气法规》第690.5条规定，安装于住宅楼顶的任何光伏阵列都必须配备接地故障保护器件，以减少火灾隐患。
The National Electric Code, in Article 690.5, requires that any PV array installed on the roof of a dwelling must incorporate a ground-fault protection device to reduce fire hazards.
因此，小电流接地系统线路故障的快速自动定位对于提高供电可靠性、减少停电损失具有重要的意义。
Therefore, locating fault position fastly and automatically is significant to improve the power supply reliability and reduce the outage loss.
直流系统环网是接地故障检测中的一个关键因素。
Loop net of DC system is an important factor in the grounding fault detection.
试验结果表明：大型发电机一变压器组的定子的任何一点上发生接地故障时都能成功地获得保护。
The test results show that the ground fault at any point of the stator of a large unit-type generator-transformer system can be successfully protected.
依据国家规程通过对试验数据的认真分析，总结了单相接地故障时，保证人身安全的结论和措施。
By serious analysis according to Chinese rule, the conclusion and the protection measures for human safety under Single Phase Grounding Fault (SPGF) are summarized.
能可靠判断、检测界内与界外毫安级零序电流及相间短路故障电流，实现自动切除单相接地故障和相间短路故障。
Can reliably determine, within the community and bounds detection ma level and zero-sequence current phase short circuit fault current, automatic removal of single-phase ground fault and phase fault.
本文系统地分析了国内外现有的单相接地故障定位方法。
This paper systematically analyses existing domestic and foreign methods for single phase grounding fault location.
为保证直流系统的正常运行，查找直流接地故障的时间应尽可能缩短。
To ensure normal operation of the substation, the DC system grounding fault should be detected as quickly as possible.
该模型可以同时考虑定子绕组对地分布电容的影响，以及定子绕组内部接地故障带来的定子绕组结构上不对称的影响。
This multi loop model can better consider the influences of the distributed capacitance and the nonsymmetrical stator windings when stator ground fault occurs in interior of the stator windings.
有两种方法可以用来检测转子回路接地故障。
Two methods are available for the detection earth faults in the rotor circuit.
文章介绍变压器铁芯多点接地故障的诊断和处理方法。
The characteristics of transformer core multiple grounding fault are analysed, the diagnosis and treatment methods are introduced.
介绍一种小电流接地故障监测系统的构成、工作原理及现场应用情况。
The structure, work principle and field application of a monitoring system for earth fault in non-solidly earthed network are presented.
单相接地故障仍是矿山电网的主要事故形式。
Single-phase grounded failure is still the main reason of mine power-net fault.
分析了TT和TN系统的接地故障保护和保护电器及其应用条件。
The earth fault protection and protective electric devices of TT and TN system and the application conditions were analyzed.
对目前配网采用信号注入法检测单相接地故障的原理进行比较分析。
The principles of using signal injection method to detect single-phase earth fault of distribution network at present are compared and analyzed.
文中以跨线并接地的横向故障和接地故障线的一侧断路器断开后的复杂故障为例阐明了该算法的原理。
With an example of two lines short and grounding fault, and one side of breaker of grounding fault line being cut off, the paper illustrates the principle of this calculation method.
因此输电线路的单相接地故障点定位应是电力系统故障检测的一个重点。
And the single phase grounding fault location for transmission line should be the emphases in power system fault detection.
针对配电网系统的单相高阻接地故障，提出了一种基于概率分析的故障检测与定位方法。
Based on probability analysis, a new method of fault detection and location in distribution network grounding with high resistance is proposed in this paper.
实验和现场运行表明该系统布线少、配置灵活、测量精度高、支路接地故障定位的准确率高及抗干扰能力强。
Experiments and actual field operations show its less wiring, flexible configuration, high measurement precision, high veracity of faulty branch locating, and strong anti-interference capability.
重点介绍了基于故障指示器技术的单相接地故障的检测和定位方法。
The detection and location method of single-phase grounding fault based on fault indicator technology was introduced.
指出石化企业低压配电系统接地故障保护存在问题及其危害性，并做实例分析，提出了解决措施。
The problems existing in grounding protection of low voltage distribution system in petrochemical enterprise are pointed out together with their harmfulness.
指出石化企业低压配电系统接地故障保护存在问题及其危害性，并做实例分析，提出了解决措施。
The problems existing in grounding protection of low voltage distribution system in petrochemical enterprise are pointed out together with their harmfulness.
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