Because the rough estimating method isn t exact, it is possible that three-phase voltage is unbalanced and the neutral point displacement voltage is high.
油田35kV配电系统中性点一般经消弧线圈接地,运行中存在三相电压不平衡、中性点位移电压偏高的现象。
To solve the problems of the inherent defects of inaccurate distance regulation and unstable flashover voltage for the current separately installed rod-rod gap for 110 kV and 220 kV transformer neutral protection, a new composite gap is developed, which is supported by the composite insulators, and the electrodes in the horn form at high and low voltages are bond on these insulators.
为解决目前110、220kV变压器中性点保护用棒-棒间隙电极分体装设时存在距离调节不准、放电电压不稳定等固有缺陷,研制了一种新型复合间隙。
The calculation results of DC currents through transformer neutrals of HVDC system operated in monopole-ground return mode with the influence of sea considered are evidently different from those calculated by terrestrial soil model.
考虑海洋影响的直流输电单极大地运行时变压器中性点流过的直流电流与陆地土壤模型计算的结果有很大不同。
Holding that there exists to a certain extent coupling between DC and AC earth electrodes,the authors analyze the transformer DC magnetic biasing in the grid,and present the network algorithm for the DC component of transformer neutral point.
为此,以直流接地极与交流接地极存在一定强度耦合的观点分析了电网变压器直流偏磁事例,在此基础上提出变压器中性点直流分量的网络算法。
By analyzing the phase\'s relationship between transformer neutral zero sequence current and zero sequence current of the protection,a novel direction element based on zero sequence current of the transformer neutral point is proposed to overcome the above shortcoming.
针对这一缺陷,通过分析变压器中性点零序电流和保护零序电流的相位关系,提出一种基于变压器中性点零序电流的方向元件。
Study on Reason and Modification Technique of Neutral Displacing Voltage of 35kV System in Daqing Oil Field
大庆油田35kV系统中性点位移电压成因及改进技术研究
Laboratory Study of Characteristic Testing for Piezoelectric Ceramic Micropositioning
压电陶瓷微位移器特性测试实验研究
Sensorless BLDC Drive Allowing for Neutral Point Voltage
计及中性点电压的无刷直流电机无位置传感器控制
Improvement of Overvoltage Protection of 110kV Transformer Neutral Point
110kV变压器中性点过电压保护的完善
Research on the Output Characteristic of Piezoelectric Micro-displacement Actuator;
压电陶瓷微位移驱动器输出特性的研究
Measurement and nonlinear correction for micro-displacement of piezoceramic tube
压电陶瓷管的微位移测量与非线性校正
Three Optimizations for the Robust of Cemtral Point Voltage of OTL Electric Circuit;
OTL电路中点电压稳定性三次择优
The potential energy of a unit charge at any point in an electric circuit measured with respect to a specified reference point in the circuit or to ground;voltage.
电势,电位相对于电路中某一特定参照点或地面的属于电路中任何一点的单位电荷势能;电压
Research on neutral-point potential balancing and control method for three-level NPC inverter
三电平中点箝位型逆变器中点电压平衡和控制方法研究
Electromagnetic Emulation and Analysis of the Differential Transformer Displacement Sensor
差动变压器式电磁位移传感器的电磁性能仿真与分析
Appalication of Small Reactor Connected to Neutral of 500kV Transformer
500kV变压器中性点串接小电抗器的应用
A Neutral-point Potential Balancing Algorithm for Three-level Single-phase NPC Converters
中性点箝位型三电平单相逆变器中性点电位平衡控制方法
Study of Transient Voltage Responses at Neutral Point of Transformers with a Surge Incoming from Winding Terminal
变压器首端进波中性点暂态电压响应的研究
Studay Over-Voltage on Neutral Grounding via Small Reactor of High-Voltage Transformers;
采用小电抗接地的高压变压器中性点过电压的研究
"The work done in moving a unit charge from one point to another, as in an electric circuit, is equal to the difference in potential energies at each point. "
将单位电荷从一点移到另一点(如在电路中)所做的功即等于两点之间的位能差。
Research on Neutral Point Floating of Three-level Inverter;
三电平高压变频器电容中点电位平衡问题的研究
Experimental study of the correlation between ICP and shift of cerebral midline in early stage of postdecompressive brain bulk enlargement
减压后脑肿大早期颅内压和脑中线移位相关性的实验研究
Power system neutral1 grounding is usually done by means of transformer and generator neutrals.
电力系统中性点通常通过变压器和发电机的中性点来接地的。
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