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- EHV transmission hnes 超高压输电线路
- A Recommendation about Adopting Public Bidding Syetem for EHV Transmission Line Design. 对超高压输电线路设计实行招标承包制的建议
- A new scheme based on multi-resolution analysis for EHV transmission lines non-unit transient protection is introduced. 提出了一种基于多尺度小波分析的高压输电线路暂态保护的新方案。
- This paper presents a new method for finding the trouble location of EHV transmission lines. 提出了一种电力系统超高压输电线路故障定位的新方法。
- The relay has been used as a key element to realize a new carrier-pilot protection of HV and EHV transmission lines. 由它作主元件实现了一套用于高压和超高压输电线路的新型方向比较式纵联保护。
- A method to optimize the location and the dimensions of the corona ring is presented for EHV transmission line composite insulators. 针对超高压输电线路合成绝缘子所用的均压环,提出了一种优化其结构参数的方法。
- Longitudinal differential protection of optical fiber,which is of many merits, has beenused more and more widely in EHV transmission line protection. 光纤纵联差动保护具有许多突出的优点,因而越来越多地用于超高压线路。
- In the Yangcheng-Sanbao 500kV EHV transmission lines,a FixedSeries Capacitor(FSC)was used to increase the power energy transmitted through the lines. 山西阳城经山东东明到江苏三堡输电工程中,用常规串联电容器组进行补偿,来提高现有输电线路的输送能力。
- Abstract: Shielding failure is the main cause of lightning flash-over of EHV transmission lines and UHV transmission lines. 摘 要: 绕击是超高压、特高压输电线路雷击跳闸的主要原因，山区绕击跳闸率计算相对平原更为复杂。
- LUO Yi.Study on guyed-strain tower adopted by Eskom in South Africa on EHV transmission lines[J].Electric Power,2006,39 (4):83-85. [2]罗毅.;南非Eskom电力公司在超高压输电线路上采用拉线式杆塔的研究[J]
- It is important for EHV transmission lines to quickly and accurately locate faults with aspects to their safe and economical operation. 在发生故障后快速可靠地切除故障线路,并迅速准确地找到故障点,及时修复线路,对整个电力系统的安全稳定和经济运行都具有着非常重要意义。
- The typical resonance phenomena from EHV transmission system are studied by means of EMTP and the simulation results are shown in the paper. 采用EMTP程序对超高压输电系统中出现的典型谐振现象进行分析,并提供仿真波形供参考。
- DFJ-100(C,CN)model ground compound insulator newly developed and put into operation is a substitute product applied for ground wire of EHV transmission lines. 新开发并投入生产的DFJ-100(C,CN)型地线复合绝缘子,是超高压输电线路避雷线(地线)使用的替代产品。
- According as the character of EHV transmission line fault transient current, based on the time and frequency localization character of wavelet transform. 基于超高压 (EHV)输电线路故障暂态电流的特点和暂态保护的基本原理 ,充分利用小波分析的时频局部化特点 ,建立了基于小波分析的暂态保护启动判据和跳闸判据。
- HE Zheng-you,WANG Xiao-ru,QIAN Qing-quan.A study of EHV transmission lines non-unit transient protection based on wavelet analysis[J ].Proceedings of the CSEE,2001,21(10):10-14. [4]何正友;王晓茹;钱清泉.;利用小波分析实现EHV输电线路单端量暂态保护的研究[J]
- LI Bin,LI Yongli,SHENG Kun.The study on single-pole adaptive reclosure of EHV transmission lines with the shunt reactor.Proceedings of the CSEE,2004,24(5):52-56. [6]李斌;李永丽;盛鹍.;带并联电抗器的超高压输电线单相自适应重合闸的研究
- On the basis of the method of moment, a numerical method to calculate the three dimensional electric field of EHV transmission line near tower in frequency domain is presented. 本文采用一种三维电磁场的计算方法，在频域下计算超高压输电铁塔附近的电场分布。
- Fan Chunju, Zhang Zhaoning, Yu Weiyong.Application of wavelet method in traveling wave fault location for EHV transmission line [J].Power System Technology , 2003,27(8):50-53. [2]范春菊;张兆宁;郁惟镛.;小波方法在超高压输电线行波故障测距中的应用[J]
- According to characteristics of EHV transmission line fault transient current,a fault can be identified as internal or external one based on the spectrum energies in many frequency bands. 介绍了高压输电线路及母线对高频暂态电流衰减的特点,通过利用多个频带内暂态信号的谱能量来实现区内外故障的准确识别。
- This paper proposes a novel approach to transient-based faulty phase selection (FPS) in EHV transmission systems.This approach stems from analyzing the coupling relation among three phase conductors. 在分析超高压输电线路三相导线间耦合关系的基础上，该文提出了一种基于暂态量的故障选相方案。
