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- This paper introduces two kinds of anti-interference measures on electrically controlled system of electrical traction shearer. 介绍了电牵引采煤机电控系统的硬件和软件方式抗干扰措施。
- For the purpose of quickening the realization of railway electrization in China, it is necessary to change the diesal traction to electric traction. 为加快实现我国铁路电气化的进程，改造内燃牵引为电力牵引具有现实的迫切性和实际的可行性。
- An improved algorithm based on equivalent circuit of autotransformer-fed (AT-fed) systems was proposed to calculate power flows of electric traction networks. 摘要在自耦变压器(AT)等值电路的基础上，提出了牵引网潮流的改进算法。
- Electric erosion by moving arc varies with arc speed.The higher the speed of the electric traction train, the slighter the electric erosion degree of the contact wire surface. 不同速度的运动电弧对接触线表面的侵蚀程度不同，列车运行速度越高，电弧对接触线表面的侵蚀程度越轻微。
- Type of MG200/456-DW thin seam electrical traction shearer MG200/456-WD型薄煤层电牵引采煤机
- SC B: SC B: Interference Relating to Industrial, Scientific and Medical Radio-Frequency Apparatus, to other (Heavy) Industrial Equipment, to overhead Power Lines, to High Voltage Equipment and Electric Traction. 工业、科学、医疗射频设备、其他(重)工业设备及架空电力线、高压设备和电力牵引系统的无线电干扰。
- 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。
- Arc maintains durative current collection by the electric traction train, however, they erode the pantograph &catenary system and produce electromagnetic interference to the environment. 电弧虽能维持电动列车取流的持续性，但对弓网系统会产生电气侵蚀，并对环境带来电磁干扰。
- Based on MALTLAB/SMULINK model, DSP platform of 3KW asynchronous electric motor and experimental control system of electric traction exchange transmission, DTC system that without speed-sensor is actualized. 并分别在基于MALTLAB/SMULINK仿真模型，基于DSP电机控制开发平台3KW异步电动机调速系统和电力牵引交流传动控制试验系统上实现无速度传感器直接转矩控制。
- 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。
- With electric traction based on the wheel-rail system tractive effort transmission depends on adhesion conditions in wheel contactpoints, bad rail conditions reducing transmissable tractive effort. 基于轮轨系统电力牵引的力传递与轮轨接触点的粘着系数有关。
- This paper is based on part of the project of developing a inverter used for AC electric traction, which is studied by Yongji Electric Factory and Xi’an Jiaotong University together. 本文的研究内容是永济电机厂与西安交通大学电气工程学院联合研制交流传动牵引逆变器项目的一部分。
- Be he a civil engineer or an electrical engineer? 他是土木工程师还是电气工程师？
- The paper discusses the application of conversion speed regulated technique in shearer.It also introdues working principle and developing tendency of the shearea with AC electric traction. 阐述了变频技术在采煤机中的应用情况,介绍了交流电牵引采煤机的工作原理及发展趋势。
- There are some electrical apparatus in the room. 房间里有些电器。
- There is a fault in the electrical system. 电路系统出了故障。
- The act of pulling loads; traction. 拖拽拖动装载物的行为; 牵引
- He is an electrical technician by profession. 他的职业是电工技师。
- power supply system of electric traction 电力牵引供电系统
- All this electrical wiring will take a day to set up. 所有这些电线架线要花一天时间安装好。
