Railway applications - Fixed installations - Electric traction overhead contact lines.
铁路设施。固定装置。电气牵引架空接触线。
The problems concerning speed sensorless control in high-power electric traction drives was studied.
研究了无速度传感器控制技术在大功率电力牵引传动系统中应用问题。
The multifunctional electric traction brace was composed of two parts, the electronic and mechanical.
手部多功能电动牵引支具由机械和电子两部分构成。
Fixed railway installations. compact ducting in reinforced concrete for electric traction cables. straight units.
铁路固定装置。电气牵引电缆用嵌入钢筋混凝内的密排导管。直管构件。
Based on the test data of Suizhongbei electric traction substation, this paper analyzes the harmonic voltage problem.
本文根据测试数据对绥中北牵引变电所谐波电压问题进行分析。
A group of overload capability curve of three-phase electric traction transformer is given for use by design and operation units.
最后给出了三相牵引变压器的过载能力曲线组，供设计、运行单位使用。
For investigating the air pollution in double line railway tunnel by electric traction, we tested the air condition in Jundushan tunnel.
为了解电力牵引的双线铁路运营隧道空气污染状况，选择军都山隧道进行现场测试。
The article describes the close relation between electric traction drive and power electronic devices that improve and rely on one another.
阐述电力牵引传动与电力电子器件相互促进和相互依存的密切关系。
The paper analyzes the features of electromagnetic interference on electric traction of high speed railway, and puts forward the protection approaches.
本文对高速铁路电力牵引电磁干扰影响的特点进行了分析，并提出防护途径。
For the problem of signal current bypass with track circuit of rolling stock depot in DC electric traction sections, the paper provides measures to prevent it.
针对直流电力牵引区段车辆段轨道电路中的信号电流存在的迂回问题，提出了在工程设计中的防范措施。
The world rail electric traction converter technology equipments ha ve taken new headway in advancing efficiency and reducing wasting and pollution in the21st century.
进入21世纪，世界轨道电力牵引变流技术装备在降耗提效、减少污染方面取得了新的进展。
In the end, using the developed program ETHP (Electric Traction Harmonic Penetration), an actual large scale network is studied, and the calculation results are analysed.
最后，利用所开发的电牵引谐波渗透程序ethp对一规模较大的实际电网进行了谐波分布计算，并分析了计算结果。
High power GTO inverter is used for railway electric traction. Its PWM control is significantly different from variable frequency drive system in conventional industrial area.
大功率GTO逆变器用于铁路电力牵引，其PW M控制与一般工业领域中的变频调速系统的PWM控制有很大不同。
In this paper a vector controlled ac speed-regulating system is developed, which adopts the rotor flux field-orientated theory to meet the requirements for an electric traction system.
本文依据矢量控制的基本原理，针对电力牵引系统对电机控制性能的要求，设计了基于转子磁场定向的矢量控制交流调速系统。
The electric traction power supply system is shouldering the duty of uninterrupted power supply to the electric locomotive, it is the bridge between the electrical power system and users.
电力牵引供电系统担负着向电力机车不间断供电任务，乃是电力系统与用户间的桥梁。
This topic is proposed at this time and this is the first display monitor which develops independently with the non-configuration software of CNR Dalian Electric Traction R&D Center also.
本课题正是在此种条件下提出的，这也是中国北车集团大连牵引力研发中心的第一款用非组态软件自主开发的司机显示屏。
The paper discusses the application of conversion speed regulated technique in shearer. It also introduces working principle and developing tendency of the shearer with ac electric traction.
阐述了变频调速技术在采煤机中的应用，介绍了交流电牵引采煤机工作原理及发展趋势。
Furthermore, the development of alternative fuel sources, like electric traction and hydrogen fuel cells, have reduced the carbon footprint of industrial trucks, making them a greener solution.
此外，替代燃料源(例如电牵引和氢燃料电池)的开发减少了工业搬运车的碳排放，使其成为更环保的解决方案。
Other technology included late-model automobiles, autoboats, and electric and steam traction engines.
其它技术包括新型汽车、汽艇、电力和蒸汽动力引擎。
For the rapidity and traffic density of trains on high-speed railway, larger traction power is needed, so the electric power supply is adopted.
高速铁路列车速度快、行车密度大，要求牵引功率高，电力牵引成为高速铁路动力牵引的必然选择。
In the past, price was the key factor when purchasing an internal transport system that consisted, for example, of an electric forklift truck, traction battery and battery charger.
在过去，当人们购买内部交通系统，包括电动叉车，牵引电池和电池充电器时，价格是关键因素。
The experimental result shows that the method can effectively be used to fault diagnosis of cage asynchronous traction motor on electric locomotive.
实验结果分析表明，该方法能够有效地应用于电力机车笼型异步牵引电机的故障诊断。
In electric railway traction substation, power capacitors and harmonic filters are the important devices for improving both the power factor and the power quality.
在电气化铁道牵引变电站中，装设无功补偿电容器和谐波滤波器是提高功率因数、改善电能质量的重要手段。
Electric drive, consists of traction motor, traction converter and control system, is one of the key technologies of electric vehicle.
电传动是电动汽车的关键技术之一，它由牵引电机、牵引变流器、控制系统三部分组成。
Main design thought, features as well as technical parameters of SS7C passenger electric locomotive are presented. Also briefed is its traction performance of passenger train.
介绍了SS7C型客运电力机车的主要设计思路、特性、技术参数等，对其牵引客运列车的性能进行了简要的分析。
This paper analyses the main principle, adhesion factor, traction and relative parameters calculation of mine electric locomotive.
介绍了矿用电机车的简要工作原理、粘着系数、牵引力及其相关参数的选择与计算。
The paper represents the computation program with the method of new optimization in the design of traction gear of electric locomotive.
本文介绍了采用最优化方法进行电力机车牵引齿轮设计计算的程序。
Conclusion the bidirectional alternate traction manipulation plus low frequency electric stimulation are effective in the treatment of the vertebral-artery-type cervical spondylosis.
结论双向交替牵引手法配合低频电刺激是更为有效的治疗椎动脉型颈椎病的方法。
The sympathetic inrush may occur in the system transformer when no-load electric locomotive or traction transformer is switched, so the protection may be affected.
通过分析发现电力机车空载启动和牵引变空载合闸都会在系统变压器中造成和应涌流。
The sympathetic inrush may occur in the system transformer when no-load electric locomotive or traction transformer is switched, so the protection may be affected.
通过分析发现电力机车空载启动和牵引变空载合闸都会在系统变压器中造成和应涌流。
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