文中提出直流系统接地故障检测方法。
In this paper, a new method for DC system grounding fault detecting is presented.
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.
最高的系统安全性和接地故障检测有助于避免由充电电流造成的跳闸。
Maximum system security and immediate ground fault detection helps avoids nuisance tripping due to charging currents.
针对直流系统中环网对接地故障检测的影响，提出利用分形的思想，初探性研究分形对环网故障的识别。
According to the influence of loop net on DC system fault detection, this paper presents a new idea based on Fractal theory to study how Fractal can identify the loop net fault.
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。
They provide system security and immediate reliable low level ground fault detection on three-phase AC resistance grounded or grounded electrical distribution systems.
本课题的研究对于完善直流系统接地故障检测方法，提高直流系统运行的安全性、可靠性具有特定意义。
This subject matter is very meaningful to improve the detection of DC system grounding fault and to perfect the safety and reliability of DC system.
经过仿真实验分析，表明该方法可以克服对地电容对接地故障检测的不利影响，完成故障信号分析，实现故障支路的准确定位。
The simulation result shows that the method can overcome the influence of the capacitors, analyze the fault signal and find the fault branch accurately.
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.
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.
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.
在发电厂和变电所内，直流系统接地故障的检测，过去一直采用手动方式来完成。
In electric power plants and substations, a detection of DC system ground fault was usually completed in hand manner, which is very much trouble and danger.
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.
本文针对中性点有效接地系统的送电线路的绝大部分故障类型提出了有效的检测手段。
This paper proposes effective methods to detect most kinds of faults occurred in transmission lines which are in effectively neutral grounded system.
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.
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.
为对变压器铁心发生的多点接地故障进行准确定位提出了高频法和行波法两种检测方法，并对它们进行了较为详细的分析和比较。
To solve the problem of locating the multipoint earthing of the transformer core, two novel methods, named as high-frequency method and travelling-wave method, are analyzed and compared in detail.
配电线路单相接地故障的检测和定位是一个难题，要在线路上定位故障点更是困难。
Detecting and locating the single phase grounding fault of power distribution system is difficult, to locate fault in the circuitry is more difficult.
双通道操作：输入回路中存在冗余重复输入。急停回路中的接地故障及急停按钮相邻成对触点间的短路故障都将被检测。
Two-channel operation: Redundancy in the input circuit. Earth faults in the Emergency Stop circuit and shorts across the emergency stop push button are also detected.
基于对地直流泄漏电流的检测来确定馈电支路的接地故障。
The earth point faults of direct current feed lines are localized with testing of leak current.
因此如何准确可靠地检测并隔离故障线路，寻找精度高的接地保护方法一直是小电流接地系统的一个重要研究课题。
The problem of how to detect and isolate fault feeder correctly and reliably, and look for a protection method with high precision is always an important research task.
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。
With comparing different methods of grounding and considering different factors, high resistance grounding was selected.
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。
With comparing different methods of grounding and considering different factors, high resistance grounding was selected.
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