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.
直流系统是变电站一个重要的组成部分，直流系统接地是常见的缺陷。
The direct current system is an important component of the transformer substation, but its grounding is a common defect.
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.
阐述直流接地的原因，介绍了直流系统接地查找原因以及在查找过程中的注意事项。
The paper discussed the reasons of DC system earthing and introduced the attentions while finding out its reasons.
变电站直流系统接地将会对变电站的设备造成损害，同时对变电站各设备的安全运行产生极大威胁。
Substation DC system grounding of substation equipment will cause damage, at the same time the substation on the safe operation of equipment to produce a great threat to.
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.
同时，直流接地极关系着高压直流输电系统的安全运行，对于附近的交流系统也有影响，其中的一些问题也十分值得研究。
At the same time, problems of the DC grounding system are valuable because it is not only significant in HVDC operation but also affects the AC system nearby.
在直流系统发生一点或多点接地时，该装置能迅速检查发生接地的直流支路编号及接地支路的极性，同时报警提示现场运行人员。
When an one-point or multi-point earth fault occurs, the monitor can quickly detect the serial number and polarity of the branch circuit earthed, and meantime give alarm to the operator on site.
直流输电系统接地极电流对交流电网的影响分析。
Analysis on influence of ground electrode current in HVDC on AC power network.
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.
本文提出了磁平衡监测方法，设计了基于磁平衡法的直流接地监测系统。
This paper puts forward magnetic balanced inspection method, and designs DC earthing inspection system based on magnetic balanced method.
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.
比较分析了几种直流系统常用的绝缘检测方法，采用乒乓式变电桥测量法，实现了接地电阻的准确在线测量。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
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.
直流接地极是直流输电系统中的一个重要组成部分，而接地极的导流系统的设计则是整个接地极最终设计成败的关键。
The DC grounding electrode is an important constituent of a DC power transmission system, and the design of its feeder system is vital for the success of the whole electrode design.
文中介绍了通信基站的电源系统，包括交流供电系统、直流供电系统和接地系统，论述了等电位在基站建设中的重要性。
In the paper, an electrical power system of base station is introduced in detail, including AC power supply system, DC power supply system and earthing system.
对直流系统常用的几种接地电阻测试方法如交流法、直流漏电流法等进行了比较分析，指出了它们在使用中的缺点。
After comparing and analyzing several conventional insulating resistance measuring method such as AC method, DC creepage method and so on, their shortcomings in use are pointed out.
对直流电源系统接地故障诊断专家系统作了较深入研究，着重研究了知识库的建立和推理机的设计。
What's more, the paper researches Expert system of fault diagnosis to ground in DC power in detail, especially focusing on the foundation of repository and the design of inference machine.
高压直流输电系统的接地电流在1000A以上，为确保直流接地系统的安全运行，该文对直流电流密度与土壤电阻率的关系进行了研究。
The grounding grip of high voltage direct current(HVDC) power system was working in large currents more than 1 000 A for long-term.
高压直流输电系统的接地电流在1000A以上，为确保直流接地系统的安全运行，该文对直流电流密度与土壤电阻率的关系进行了研究。
The grounding grip of high voltage direct current(HVDC) power system was working in large currents more than 1 000 A for long-term.
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