Study on Transposition of UHV Long Distance Transmission Line 特高压长距离输电线路换位问题的研究
First long distance line, Boston to Providence. 第一根长途电话线,从波士顿到普罗维登斯。
Analysis and Evaluation of the Methods of Electromagnetic Transient Computation on EHV Long Distance Transmission Line 超高压远距离输电线路电磁暂态计算方法的分析与评价
Hydraulic Pressure Test Implemented in Winter for Long Distance Pipe line Project 长输管道冬季水压试验
Development of Failure Diagnosis Equipment for Long Distance Telecommunication Line 长途通信线路故障诊断装置
Reduction of the Long Distance Space Line 长距离空间直线的归算
In accordance with the high and extra high voltage long distance transmission line, this paper presents a fault location method based on two terminal information of self synchronous rectification. 针对高压、超高压远距离输电线路,提出了一种应用双端信息自同步校正的故障测距法。
To actively promote the development of the maglev transportation both for the long distance line and intercity application. 积极推进新型磁浮交通的发展,开拓长大干线与城市交通两方面的实用化与产业化。
Electromagnetic transient stability simulation of long distance transmission line in DTS DTS中长距离输电线路的电磁暂态仿真
Through the analyses of causation of leakage in long distance water transferring line, this paper puts forward relevant treatment methods which can provide reference for directing practice. 本文通过对长距离输水干线漏水原因的分析,提出了相应的处理办法,具有指导实践的参考价值。
New principle of segregated phase current differential protection in long distance transmission line with series capacitor compensation 有串补电容输电线分相电流差动保护的新原理
This paper introduces the research and application of an arc extinguisher, which accords with the standard of distribution network equipment and the requirement of live line work, and suits joint of non-load cable and long distance overhead line, and presents the proposals for improving. 本文介绍一种符合配电网装置标准和带电作业要求,适用于空载电缆和长距离架空线路搭接的消弧器的研制和实际应用情况,并提出相应的改进意见。
Causation And Treatment Method Of Leakage In Long Distance Water Transferring Line 柳毛长距离输水干线漏水原因及处理办法
The paper analyses some characteristics of transient computation on EHV long distance transmission line. 本文分析了超高压远距离输电线路电磁暂态计算的一些特点。
To ensure the speed and accuracy of simulation an electromagnetic transient model for long distance HVAC transmission line with uniform distributed parameters is adopted and the hybrid transient simulation method in ordinary electromechanical transient model is still applied to the simulation of other parts of the power network. 为保证DTS仿真的精度和速度,采用了对高压交流长距离均匀传输线采用电磁暂态模型、网络其他部分仍然采用常规机电暂态模型的混合暂态仿真方法。
To resolve the above problems, based on fault components applied in protection of the UHV long distance transmission line, the energy directional relay was proposed, which was carried out by Bergeron algorithm, and corresponding directional pilot relay protection principle was presented. 提出了一种应用于特高压长距离输电线路的故障分量式能量方向元件,并且提出了相应的方向纵联保护原理,用贝瑞隆算法加以实现;
Regulate partial existing long distance line. 调整现有部分长途电路。
The application of large-size transformer and extra-high voltage long distance transmission line worsens the working environment of transformer protections, which results in that the correct operation ratio of the present protection is low, so the transformer protections need improvements. 大型变压器及超高压远距离输电线路在电力系统中的运行,恶化了变压器保护的工作环境,使得原有的保护判据正确动作率相对不高,对继电保护研究工作提出了新的要求。
Operation Circle Diagram of Ultra-high Voltage Long distance Transmission Line with the Constant Power Factor of Its End 超高压长线在末端恒功率因数下的运行圆图
This paper proposes a novel principle of segregated phase current differential protection in UHV long distance transmission line with shunt reactor installed in the middle segment. 提出了在特高压长线路中间带并联电抗器时的线路分相电流差动保护原理。
General Phasor Diagram and Power-angle Characteristic Equations of Extra High Voltage Long! Distance Transmission Line 超高压长线的通用相量图与功角特性方程
Analysis of Cut-off of Long Distance Transmission Line 长输电线开断过程的分析
The traditional manage-ment method has to deal with the long distance line and enormous information data of road It makes the governor of road department unable to grasp the information of road effectively. 广州市公路局目前采用传统的管理方式需要面对漫长的公路路线,庞大的公路信息数据,使公路管理者无法有效的掌握公路信息。
Combined with the constitution of network topology for special pipeline telecommunication network, determine transfer technology system for newly build long distance trunk line and business type, plan user's network construction properly. 结合管道专用通信网的网络拓扑构成,确定新建长途干线传输技术体制及传输容量,确定传输业务类型,正确规划用户网络建设。
Study on Design and Simulation of Altiplano Long Distance Transmission Electricity Line Voltage Compensation 高原长距离输电线路电压补偿设计与仿真的研究
The Design of Long Distance Tube Line Supervising System 长距离管线监测系统的设计
Research on Protection Characteristic for Long Distance Double Line with the Same Tower 长距离同杆架设双回路保护特点的研究
Study on establishment of mathematical model of long distance water transportation line 长距离输水管线工程设计数学模型的建立及几个关键问题研究
Coherent optical time domain reflectometry ( C-OTDR) is an important instrument for health monitoring of multi-repeater super long distance optical transmission line. 相干光时域反射仪是多中继超长距离光纤通信线路健康监测的重要设备。