Because conventional single - terminal method of fault location ca n ' t eliminate the influence of fault resistance and the remote in - feed , its utility is limited 单端测距法由于存在难以消除过渡阻抗和对端系统阻抗的影响这一缺陷,使其应用受到限制。
The principles of selecting fault line in existence can also be used in feeder automation . these principles may increase the reliability of fault location greatly 同时指出现有的选线原理同样可以用于本方案,这些原理的应用将大大增加单相接地故障定位的可靠性。
Quick and accurate fault location is the premise to rapidly isolate the fault and redelivery power supply , and it is important to the normal working of power networks 快速、准确的故障定位是迅速隔离故障和恢复供电的前提,对于维护配电网的安全运行具有重要意义。
An automatic fault location method is proposed based on ftu after the circuit analysis of single line - to - ground fault in distribution networks 通过对配电网发生单相接地故障后馈线的电压、电流变化规律的分析,论文提出了基于馈线现场监控终端ftu的故障点智能定位方法。
After a comprehensive analysis of existing methods , the author made a thorough study with the on - line monitoring method and a fault location algorithm 论文对国内外关于该课题的现有的各种研究情况做了全面深入的分析,在此基础上从接地故障测距算法和在线监测两方面进行了研究。
With the requirement of improving the reliability of power supply and the fast development of the distributed power system automation , the study of fault location becomes more and more important 提高供电可靠性的要求和配电网自动化水平的迅猛发展使得对故障定位的研究日益紧迫。
The merit of travelling waves location is its high precision , but it has dead line if the fault location is close to the line terminal or the fault occurs at the time close to zero point of current 行波法测距的优点是精度高,但对近区故障或电流过零附近时刻发生的故障存在测距死区。
The association rules got from this database can be used in alarm associating , alarm filtrating , fault location and forecasting and effectively promote the intelligent network management 挖掘出的关联规则可以应用于告警过滤、告警关联、故障定位和故障预测等,可有效提高网络的智能化管理。
In the method zero sequence voltage is discussed and new principle for automatic fault location and isolation based on the zero sequence voltage is presented in this paper 该方法以馈线电压变化量为故障点定位的主要判据进行故障点自动监测与定位,并迅速隔离故障区段,恢复正常区段的供电。
The single - phase grounding fault frequently occurs in neutral ungrounded system , the fault line and fault location must be found to avoid a phase - to - phase short as soon as possible 单相接地故障在小电流接地系统中出现的比较频繁,此时必须尽快找到故障线路以及大致的故障点,以避免两相对地短路。