1) small current system
小电流系统
1.
Phase\|to\|ground fault and ferro\|resonance fault are common in small current system.
单相接地故障和铁磁谐振故障是小电流系统经常发生的故障。
2) small current grounding system
小电流系统
1.
In order to discover the principle of grounding fault with the method of theoretical analysis and experimental study,this paper analyzes the influence of grounding resistance on single-phase parameter in small current grounding system,then finds the characteristic of grounding voltage on indirectly grounding fault,thus summarizes the criterion of single-phase grounding fault.
为找出单相接地故障相判别的依据,本文采用理论分析和实验研究相结合的方法,分析了小电流系统接地过渡电阻对单相接地参数的影响,进而发现了发生不完全接地故障时各点对地电压的特征,从而总结出单相接地故障相的判据。
2.
Through the analysis about the features of the small current grounding system,the degrees which the lines have fault can be calculated with using fuzzy set,and the principle of earth-fault selection device based on the PC are designed from it.
基于对小电流系统单相接地故障特征的分析,采用模糊集理论计算各线路对故障的可信度。
3) small current neutral grounding system
小电流接地系统
1.
Selection methods of single phase grounding fault line in small current neutral grounding system
小电流接地系统单相接地故障选线方法分析
2.
A synergetic theory based faulty line detection method for single-phase to ground fault occurred in small current neutral grounding system is proposed.
提出了一种基于协同学理论的小电流接地系统单相接地故障选线方法。
3.
Based on information fusion and fuzzy reasoning,a new device for single-phase grounding fault location of distribution feeders in small current neutral grounding system is developed by using GSM(global system for mobile communication) network.
研究了一种基于信息融合模糊推理,利用GSM网络的小电流接地系统馈线单相接地故障定位装置。
4) non-solidly earthed network
小电流接地系统
1.
Since no short-circuit loop is formed so that the fault current is small and the three phase line to line voltages are still symmetric when single-phase to earth fault occurs in a non-solidly earthed network, the load can be in normal operation for a period of time .
小电流接地系统发生单相接地故障时，虽然不形成短路回路，没有量值很大的短路电流，且三相线间电压依然对称，不影响负载的正常工作，可以继续运行一定时间，但是在发生单相接地后，非接地相对地的电压会升高，断续性电弧接地时还会产生弧光过电压，长期运行可能会损坏其绝缘，引发严重的相间故障。
2.
Distribution system are universally the non-solidly earthed networks, and the single-phase to earth fault happens most frequently in the power system with ungrounded neutral.
小电流接地系统是配电网普遍采用的接地方式，同时单相接地故障是小电流接地系统发生率最高的故障。
5) non-solidly grounded system
小电流接地系统
1.
A simulation model of non-solidly grounded system with arc procedure is presented in the paper.
建立了伴有电弧过程的小电流接地系统的仿真模型,利用电磁暂态程序EMTP全面仿真了不同故障情况对故障稳态和暂态电压、电流幅值特征和相位特征产生的影响。
2.
A more accurate fault model based on the distributed parameters of non-solidly grounded system is presented to analyze the transient characteristics of single-phase grounding fault and to improve the faulty feeder selection criterion based on transient signals.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型,用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
3.
Correct fault line detection for the non-solidly grounded system is a longstanding and hard problem in its operation.
正确接地故障选线是小电流接地系统长期存在的难题,通常采用的单一故障选线方法只对部分故障信息进行处理,选线的可靠性不高。
6) neutral indirectly grounded system
小电流接地系统
1.
Fault line detection for single-phase-to-earth faults in the neutral indirectly grounded system based on Prony method;
基于Prony算法的小电流接地系统单相接地故障选线研究
2.
Research on Fault Line Detection for Single-Phase to Ground Faults in the Neutral Indirectly Grounded System Based on Transient Feature;
基于暂态特征的小电流接地系统单相接地选线研究
3.
Detecting the fault line correctly is important to clear the fault and improve power supply reliability when single phase fault occurs in neutral indirectly grounded system.
小电流接地系统发生单相接地故障时,准确检出故障线路对快速排除故障、提高供电可靠性具有重要意义。
补充资料：标准冲击电流波形(见冲击电流发生器)
标准冲击电流波形(见冲击电流发生器)
standard impulse current wave form
blaozhun ehonglld}0n4一u box]ng标准冲击电流波形(standard impulse currentwave form)见冲击电流发生器。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条