接地系统
- 网络Grounding system;Earthing System;NUGS
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中性点非直接接地系统中电磁式PT引起的谐振过电压
Resonance Overvoltage Phenomenon on Electromagnetic PT in Neutral-point Indirect Earthing System
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本文就中性点非直接接地系统中电磁式PT引起的谐振过电压现象进行分析并确定其铁磁谐振过电压的性质,由此采取措施防止并消除谐振。
This article focuses on resonance overvoltage phenomenon caused by electromagnetic PT in neutral-point indirect earthing system . It also analyses ferroresonant overvoltage character , as well as some steps to prevent or eliminate resonance .
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基于BP模型的城市配电网中性点小电阻接地系统阻值的研究
Research on Little Resistance Grounded Neutral System of City Distribution Network Based on BP Module
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基于DSP和多重算法的小电流接地系统单相接地故障选线装置的研制
The Development of Single-phase-to-earth Fault Selection Device Based on DSP and Multiple Algorithms in NUGS
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基于MonteCarlo方法的中性点非有效接地系统输电线路故障测距
Fault Location of Transmission Line in Non-Effective Grounded Neutral System Based on Monte-Carlo Method
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基于DSP的中性点不接地系统接地故障支路判别
The Determination of Grounded Fault on Branch Circuit of Power Network with non-grounded Neutral on the Basis of DSP
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不接地系统中电磁式PT异常运行的数字仿真分析
Digital Simulation Study and Analysis on Abnormity of Electromagnetic Potential Transformer in Isolated Neutral System
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基于改进D-S证据理论的小电流接地系统故障选线
Fault Line Selection in Small Current Grounded System Based on Improved D-S Evidence Theory
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提出一种基于小波变换与BP神经网络相结合的方法来实现小电流接地系统单相接地故障定位。
In this paper , the method based on the combination of wavelet transform and BP neural network is presented to realize fault location for the single-phase-to-earth fault in non-direct-ground systems .
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配合FTU的非有效接地系统单相故障定位方法
Locating Method for Single Phase Fault Cooperated with FTU in Non-effectively Grounding Network
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北京电网10kV低电阻接地系统运行分析
Operation Analysis of Low Resistance Grounding System for Beijing Power Grid
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本文推导出用结点阻抗矩阵进行中性点不接地系统中任意两点异相接地故障计算公式,并编制程序在IBM机上调试通过,最后进行了算例分析。
This paper has derived calculating formulas of arbitrary two point faults in neutral non-grounded power system by bus impedance matrix . An example of calculation is carried out with IBM computer .
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本文分析了干扰对某CAT系统的影响,从电磁屏蔽、电源系统、传输线路和接地系统等进行了硬件抗干扰设计。
The paper analyzes interference of jam in the CAT system , and accomplishes anti-jamming hardware design based on design of electromagnetism shield , power supply , transmit lines and grounding system .
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谐振接地系统在10kV配网中的应用
Application of Grounding System of the Resonance in 10 kV Distribution Network
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10kV小电阻接地系统电流互感器配置
The Layout of Current Transformer of 10 kV Micro-ohm Resistance Grounding System
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10kV小电阻接地系统特殊问题的研究
Study on Special Problems of 10 kV Systems with Low Resistance Grounding
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10kV小电阻接地系统零序过流定值的探讨
Discussion on zero sequence overcurrent settings for 10 kV low resistance grounding system
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设计了该原理应用在经消弧线圈接地系统中的matlab仿真模型,验证了该原理可以根据参考信号,有效地提取含有噪声的信号的有效信息。
Application of the design principles in the Petersen coil grounding system in matlab simulation model can be verified in accordance with the principle of reference signals , effectively extract the signal with noise effective information .
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基于聚类FSVM的小电流接地系统馈线故障定位系统
Fault Location System for Distribution Feeders in Networks with Ungrounded Neutral Based on Clustering FSVM
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根据TMS320LF2407的特点,介绍了DSP在小电流接地系统单相接地选线装置中的应用。
Based on the characteristics of TMS320LF2407 , this paper presents the application of DSP to single earth fault selection device with small current grounding system .
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35kV电阻接地系统接地故障分析与保护措施
Analysis on the Grounding Faults in 35 kV System with Neutral Resistance Grounded and Its Protective Measure
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一种消除10~35kV不接地系统铁磁谐振的新措施
A New Measure to Eliminate the Ferromagnetic Syntonization in 10 - 35 kV Non - grounding System
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用EMTP仿真计算了10kV中性点不接地系统电磁式TV饱和引起的铁磁谐振。
The ferroresonance , which results from the electromagnetic potential transformer in a 10 kV distribution system , is simulated and studied by the Electro-Magnetic Transient Program ( EMTP ) .
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该文根据坦克装甲车辆EMC特点,讨论了接地系统产生电磁干扰的机理,分析了典型EMC故障,提出了接地系统的控制技术和改进措施。
This paper discussed electromagnetic interference mechanism according to tank & armored vehicles EMC characteristic and analyzed representative exception class of EMC . The article brought forward the control technique and improvement on grounding system .
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CDEGS软件在大型火力发电厂接地系统安全分析中的应用
Application of Security Analysis of Grounding System using CDEGS Software in Large Power Plant
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分布式光纤温度传感器(FODTsensor)用于地下电力电缆故障检测,可对阻性接地系统故障进行快速定位。
In fault locating of XLPE insulated underground cable of resistance grounding system , the fiber optic distributed temperature sensor ( FODT sensor ) can be used to locate the fault position quickly .
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基于故障行波理论和IEC61850标准,研制了中性点非有效接地系统数字化变电站中的单相接地故障行波选线装置。
A faulty feeder selector based on traveling wave theory and IEC61850 standard is developed for the single-phase grounding fault of digital substation in non-solid grounding power system .
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由于小电流接地系统(NUGS)有着供电可靠性高等不可替代的优点,我国及其他很多国家的配电系统均广泛采用小电流接地方式。
Due to its irreplaceable superiority , non-effectively grounded system has been widely used in our country and other distribution networks in many countries .
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本文针对建筑物内的电磁干扰进行了分析,并对建筑物EMC措施:接地系统、电磁屏蔽措施、滤波器的应用与安装及其系统测试进行了介绍。
This paper has a systemic analysis on the topic of EMI inside building , and also introduces EMC measure in building , which is mainly focus on grounding system , electromagnetic shield measure and the application , implementation and system testing of filter .
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同时利用MATLAB中的小波工具箱对某10kV中性点不接地系统单相接地故障激发的铁磁谐振进行了分析,检测故障发生时刻以及判断谐振的发生和频率。
Besides , the wavelet toolbox in MATLAB is also used to analyze the ferromagnetic resonance caused by single-phase earthed fault in a 10 kV neutral isolated power system , detect the time of the fault and determine the resonance frequency .