(电气工程与自动化专业英语)第8章Stepping Motor Characteristics and Drives
电气工程与自动化专业英语中文翻译
第一章电路基本原理第一节电流与电压u(t)和i(t)这两个变量是电路中最基本的概念,描述了电路中各种不同的关系。
电荷与电流电荷与电流的概念是解释一切电气现象的基础原则。
而电荷也是电路的最基本的量。
电荷是构成物质的原子的电气属性,单位是库仑(C)。
通过基础物理学,我们了解到一切物质都是由被称为原子的基本粒子构造而成的,每个原子中都包含电子、质子和中子。
我们还知道电子上的电荷带负电,每个电子上的电量是1.60210×10-19库仑。
质子带与电子相等的正电荷。
原子上质子与电子的数目相等,使其呈中性。
我们来考虑电荷的运动。
电或电荷的独特之处就是它们可以移动,也就是说电荷可以从一个地方移动到另一个地方,从而转换成另外一种形式的能量。
当把一根导线接在电池(一种电源)的两端时,电荷受迫而运动;正电荷与负电荷分别向相反的两个方向移动。
这种电荷的移动产生了电流。
习惯上,我们把正电荷移动的方向或负电荷移动的反方向称为电流的方向,如图1-1所示。
这种说法是由美国科学家、发明家本杰明·富兰克林提出的。
即使我们知道金属导体中的电流是由于带负电荷的电子(运动)而产生的,(我们)也使用默认的习惯,将正电荷运动的方向定义为电流的方向。
因此,电流是单位时间内电荷的变化率,单位是安培(ampere,A)。
在数学上,电流i、电荷q和时间t的关系为dq(1-1)i=dt将等式的两边同时进行积分,则可得到电荷在时间t和t0之间的变化。
有idt(1-2)q== 0tt在等式(1-1)中我们给电流i的定义表现了电流不是一个定值量,电荷随时间的变化不同,电流也与之呈不同的函数关系。
电压、电能与电功率使电子在导体中定向运动需要做功或能量转换。
功由外电动势提供,最典型的就是图1-1中的电池。
外电动势也可理解为电压或电位差。
电路中,a、b两点之间的电压U ab等于从a到b移动单位电荷所需能量(所做的功),有dw(1-3)U ab=dqw代表电能,单位是焦耳(J);q代表电量。
(最新整理)(完整版)电气工程及其自动化专业英语
电气工程及其自动化专业教研室
6
• The exciting or magnetizing current (励磁电流)can thus be very small. Further, the proportion of the total flux which is linked mutually by the two coils is greatly increased.
of two coils in close proximity. One coil of N1 turns is excited with
alternating current and therefore establishes a flux φ11 which alternates with the current (随时间交变). The other coil is linked
• the applied voltage 外施电压
• zero-power-factor 零功率因数
• the no-load power factor 空载功率因数
• formulate 用公式表示,系统地阐述
• saturation 饱和
2021/7/26
电气工程及其自动化专业教研室
4
Unit 11 The Transformer on No Load
a result (因此), is called the secondary winding.
2021/7/26
电气工程及其自动化专业教研室
7
• It should not be difficult to realize that the two functions are interchangeable: if coil 2 were excited instead, a mutual e.m.f. would be induced in coil 1 which would then become the secondary winding(二次绕组).
电气工程及其自动化英语英译汉
1```In the generator mode ,it,s operating speed isslightly higger than it,s synchronous speed and ie needs magnetizing revctive pover form the symtem that it is connected to in order to suuply pover .在发电方式下他的工作速度比同步转速稍高些,并了解供电力,他需要他所连接的系统吸收磁化无功功率。
2```in the barking mode of operyetion ,a three –phase indection motor running at a steady –speedcan be brought to a quick stop by interchanging two of stator leads感应电机运行电动状态时,其转速低于同步转速,运行在发电状态时,其转速高于同步转速,这就需要从与之间相连的系统电源提供励磁的无功功率。
3```obviously ,dc machine applications are very significant,but the advantages of the dc machinemmust be weighed against its greatr initial investment cost and the maintenance problems associated with its brush-commutator system..同步是指状态运行时点击以恒定的转速和频率运行。
4```with a cylindyical rotor the reluctance of the magnetic circuit of the field is independent of itsactual diretion and relative to the direct axis.圆柱形转子的磁场磁路的磁阻与直轴有关,而与磁场的实际方向无关。
电气工程及其自动化专业英语介绍
电气工程及其自动化专业英语介绍Introduction to Electrical Engineering and AutomationElectrical engineering is a field of engineering that deals with the study, design, and application of electrical systems, devices, and equipment. It encompasses a wide range of areas, including power generation, transmission and distribution, control systems, electronics, telecommunications, and computer engineering. The field of electrical engineering has played a crucial role in shaping the modern world, as it is responsible for the development of various technologies that have revolutionized industries and everyday life.Automation, on the other hand, refers to the use of control systems and information technologies to reduce human intervention and improve efficiency in various processes. It involves the integration of electrical, mechanical, and computer engineering to create intelligent systems that can perform tasks with minimal human involvement. Automation has become an essential part of many industries, including manufacturing, transportation, healthcare, and energy.The study of electrical engineering and automation prepares students to become professionals who can design, develop, and maintain electrical systems and automation technologies. They acquire a strong foundation in mathematics, physics, and electrical circuit theory, which are essential for understanding the principles and laws governing electrical systems. Additionally, students learn about electronics, digital systems, and computer programming, as these are crucial for designing and implementing automation systems.In the electrical engineering and automation program, students are exposed to a wide range of courses that cover topics such as power systems, control systems, robotics, signal processing, and communication systems. They learn how to analyze and design electrical circuits, understand the principles of power generation and distribution, and develop control systems for various applications. They also gain knowledge inprogramming languages, such as C++, MATLAB, and LabVIEW, which are commonly used in automation and control.Practical experience is a vital component of the electrical engineering and automation program. Students have the opportunity to work on real-world projects, either individually or in teams, to apply their theoretical knowledge and develop practical skills. They may work on projects such as designing electrical circuits, programming microcontrollers, developing automation systems, or troubleshooting electrical equipment. These hands-on experiences allow students to gain valuable insights into the industry and enhance their problem-solving abilities.Career prospects for graduates in electrical engineering and automation are promising. They can find employment in various industries, including power generation and distribution companies, manufacturing firms, telecommunications companies, and automation technology providers. They can work as electrical engineers, control systems engineers, automation engineers, or research and development engineers. With the increasing demand for automation in various sectors, there is a growing need for professionals who can design and implement intelligent systems.In conclusion, the field of electrical engineering and automation offers exciting opportunities for those interested in designing and developing electrical systems and automation technologies. The program provides a comprehensive education in various aspects of electrical engineering, including power systems, control systems, electronics, and automation. Graduates are equipped with the knowledge and skills necessary to pursue successful careers in a wide range of industries.。
电气工程及其自动化专业英语介绍
电气工程及其自动化专业英语介绍Introduction:Electrical Engineering and its Automation is a field of study that combines electrical engineering principles with automation techniques. This discipline focuses on the design, development, and implementation of electrical systems and their control using various automation technologies. In this article, we will delve into the various aspects of Electrical Engineering and its Automation, including its scope, key concepts, job opportunities, and future prospects.Body:1. Scope of Electrical Engineering and its Automation:1.1 Importance of Electrical Engineering:- Electrical engineering plays a vital role in various industries, including power generation, telecommunications, transportation, and manufacturing.- It involves the design and maintenance of electrical systems, such as power distribution networks, control systems, and electronic devices.1.2 Automation in Electrical Engineering:- Automation techniques are applied to enhance the efficiency, reliability, and safety of electrical systems.- Automation technologies, such as PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition), are used for process control, monitoring, and data acquisition.1.3 Integration of Electrical Engineering and Automation:- The integration of electrical engineering principles with automation technologies enables the development of advanced control systems and intelligent machines.- It facilitates the automation of various industrial processes, leading to increased productivity and reduced human intervention.2. Key Concepts in Electrical Engineering and its Automation:2.1 Electrical Circuit Analysis:- This involves the study of electrical circuits and their behavior using mathematical models and techniques.- Concepts such as Ohm's law, Kirchhoff's laws, and circuit theorems are used to analyze and solve electrical circuit problems.2.2 Power Systems:- Power systems deal with the generation, transmission, and distribution of electrical energy.- Concepts like power generation, power factor correction, and power system protection are essential in ensuring a stable and reliable power supply.2.3 Control Systems:- Control systems involve the regulation and control of electrical processes.- Concepts like feedback control, PID (Proportional-Integral-Derivative) controllers, and system stability are crucial in designing and implementing control systems.3. Job Opportunities in Electrical Engineering and its Automation:3.1 Electrical Engineer:- Electrical engineers are responsible for designing, developing, and maintaining electrical systems.- They work in various industries, including power generation, telecommunications, and manufacturing.3.2 Automation Engineer:- Automation engineers specialize in the design and implementation of automation systems.- They develop control strategies, program PLCs, and integrate automation technologies into electrical systems.3.3 Research and Development:- Electrical engineering and its automation offer numerous research and development opportunities.- Researchers work on developing innovative technologies and improving existing systems to meet the evolving demands of industries.4. Future Prospects in Electrical Engineering and its Automation:4.1 Renewable Energy:- The growing focus on renewable energy sources, such as solar and wind power, presents new challenges and opportunities in electrical engineering and its automation.- Engineers are needed to design and optimize renewable energy systems and integrate them into the existing power grid.4.2 Internet of Things (IoT):- The integration of electrical systems with IoT technologies opens up new avenues for automation and control.- Electrical engineers can leverage IoT to develop smart grids, intelligent buildings, and efficient energy management systems.4.3 Artificial Intelligence (AI):- AI techniques, such as machine learning and neural networks, can be applied to enhance the automation capabilities of electrical systems.- Electrical engineers can explore the use of AI for predictive maintenance, fault detection, and optimization of electrical processes.Conclusion:Electrical Engineering and its Automation is a dynamic field that combines electrical engineering principles with automation technologies. It plays a crucial role in various industries and offers a wide range of job opportunities. The integration of electrical engineering with automation enables the development of advanced control systems and intelligent machines. With the increasing focus on renewable energy, IoT, and AI, the future prospects in this field are promising. As technology continues to advance, electrical engineering and its automation will continue to evolve, driving innovation and shaping the future of industries.。
电气工程及其自动化 外文翻译 外文文献 英文文献 电力系统的简介
Brief Introduction to The Electric Power SystemPart 1 Minimum electric power systemA minimum electric power system is shown in Fig.1-1, the system consists of an energy source, a prime mover, a generator, and a load.The energy source may be coal, gas, or oil burned in a furnace to heat water and generate steam in a boiler; it may be fissionable material which, in a nuclear reactor, will heat water to produce steam; it may be water in a pond at an elevation above the generating station; or it may be oil or gas burned in an internal combustion engine.The prime mover may be a steam-driven turbine, a hydraulic turbine or water wheel, or an internal combustion engine. Each one of these prime movers has the ability to convert energy in the form of heat, falling water, or fuel into rotation of a shaft, which in turn will drive the generator.The electrical load on the generator may be lights, motors, heaters, or other devices, alone or in combination. Probably the load will vary from minute to minute as different demands occur.The control system functions (are)to keep the speed of the machines substantially constant and the voltage within prescribed limits, even though the load may change. To meet these load conditions, it is necessary for fuel input to change, for the prime mover input to vary, and for torque on the shaft from the prime mover to change in order that the generator may be kept at constant speed. In addition, the field current to the generator must be adjusted to maintain constant output voltage. Thecontrol system may include a man stationed in the power plant who watches a set of meters on the generator output terminals and makes the necessary adjustments manually. In a modern station, the control system is a servomechanism that senses generator-output conditions and automatically makes the necessary changes in energy input and field current to hold the electrical output within certain specifications..Part 2 More Complicated SystemsIn most situations the load is not directly connected to the generator terminals. More commonly the load is some distance from the generator, requiring a power line connecting them. It is desirable to keep the electric power supply at the load within specifications. However, the controls are near the generator, which may be in another building, perhaps several miles away.If the distance from the generator to the load is considerable, it may be desirable to install transformers at the generator and at the load end, and to transmit the power over a high-voltage line (Fig.1-2). For the same power, the higher-voltage line carries less current, has lower losses for the same wire size, and provides more stable voltage.In some cases an overhead line may be unacceptable. Instead it may be advantageous to use an underground cable. With the power systems talked above, the power supply to the load must be interrupted if, for any reason, any component of the system must be moved from service for maintenance or repair. Additional system load may require more power than the generator can supply. Another generator with its associated transformers and high-voltage line might be added.It can be shown that there are some advantages in making ties between the generators (1) and at the end of the high-voltage lines (2 and 3), as shown in Fig.1-3. This system will operate satisfactorily as long as no trouble develops or no equipmentneeds to be taken out of service.The above system may be vastly improved by the introduction of circuit breakers, which may be opened and closed as needed. Circuit breakers added to the system, Fig.1-4, permit selected piece of equipment to switch out of service without disturbing the remainder of system. With this arrangement any element of the system may be deenergized for maintenance or repair by operation of circuit breakers.Of course, if any piece of equipment is taken out of service, then the total load must be carried by the remaining equipment. Attention must be given to avoid overloads during such circumstances. If possible, outages of equipment are scheduled at times when load requirements are below normal.Fig.1-5 shows a system in which three generators and three loads are tied together by three transmission lines. No circuit breakers are shown in this diagram, although many would be required in such a system.Part 3 Typical System LayoutThe generators, lines, and other equipment which form an electric system are arranged depending on the manner in which load grows in the area and may be rearranged from time to time.However, there are certain plans into which a particular system design may be classified. Three types are illustrated: the radial system, the loop system, and the network system. All of these are shown without the necessary circuit breakers. In each of these systems, a single generator serves four loads.The radial system is shown in Fig.1-6. Here the lines form a “tree” spreading out from the generator. Opening any line results in interruption of power to one or more of the loads.The loop system is illustrated in Fig.1-7. With this arrangement all loads may be served even though one line section is removed from service. In some instances during normal operation, the loop may be open at some point, such as A. In case a line section is to be taken out, the loop is first closed at A and then the line section removed. In this manner no service interruptions occur.Fig.1-8 shows the same loads being served by a network. With this arrangement each load has two or more circuits over which it is fed.Distribution circuits are commonly designed so that they may be classified as radial or loop circuits. The high-voltage transmission lines of most power systems are arranged as network. The interconnection of major power system results in networks made up by many line sections.Part 4 Auxiliary EquipmentCircuit breakers are necessary to deenergize equipment either for normal operation or on the occurrence of short circuits. Circuit breakers must be designed to carry normal-load currents continuously, to withstand the extremely high currents that occur during faults, and to separate contacts and clear a circuit in the presence of fault. Circuit breakers are rated in terms of these duties.When a circuit breaker opens to deenergize a piece of equipment, one side of the circuit breaker usually remains energized, as it is connected to operating equipment. Since it is sometimes necessary to work on the circuit breaker itself, it is also necessary to have means by which the circuit breaker may be completely disconnected from other energized equipment. For this purpose disconnect switches are placed in series with the circuit breakers. By opening these disconnectors, thecircuit breaker may be completely deenergized, permitting work to be carried on in safety.Various instruments are necessary to monitor the operation of the electric power system. Usually each generator, each transformer bank, and each line has its own set of instruments, frequently consisting of voltmeters, ammeters, wattmeters, and varmeters.When a fault occurs on a system, conditions on the system undergo a sudden change. V oltages usually drop and currents increase. These changes are most noticeable in the immediate vicinity of fault. On-line analog computers, commonly called relays, monitor these changes of conditions, make a determination of which breaker should be opened to clear the fault, and energize the trip circuits of those appropriate breakers. With modern equipment, the relay action and breaker opening causes removal of fault within three or four cycles after its initiation.The instruments that show circuit conditions and the relays that protect the circuits are not mounted directly on the power lines but are placed on switchboards in a control house. Instrument transformers are installed on the high-voltage equipment, by means of which it is possible to pass on to the meters and relays representative samples of the conditions on the operating equipment. The primary of a potential transformer is connected directly to the high-voltage equipment. The secondary provides for the instruments and relays a voltage which is a constant fraction of voltage on the operating equipment and is in phase with it;similarly, a current transformer is connected with its primary in the high-current circuit. The secondary winding provides a current that is a known fraction of the power-equipment current and is in phase with it.Bushing potential devices and capacitor potential devices serve the same purpose as potential transformers but usually with less accuracy in regard to ratio and phase angle.中文翻译:电力系统的简介第一部分:最小电力系统一个最小电力系统如图1-1所示,系统包含动力源,原动机,发电机和负载。
电气工程及其自动化专业英语介绍简版
电气工程及其自动化专业英语介绍引言概述:电气工程及其自动化是一门涉及电力、电子、自动化控制等多个领域的学科,它在现代社会中起着至关重要的作用。
本文将从五个大点出发,详细介绍电气工程及其自动化专业的英语介绍。
正文内容:1. 电气工程及其自动化专业的背景1.1 电气工程及其自动化专业的定义和范围1.2 电气工程及其自动化专业的重要性和应用领域1.3 电气工程及其自动化专业的发展趋势和前景2. 电气工程及其自动化专业的基础知识2.1 电气工程基础知识:电路理论、电磁场理论等2.2 自动化控制基础知识:控制原理、传感器与执行器等2.3 电子技术基础知识:模拟电子技术、数字电子技术等3. 电气工程及其自动化专业的核心课程3.1 电力系统与电力电子技术3.2 自动化控制理论与应用3.3 电机与拖动控制技术3.4 电气工程材料与器件3.5 电力系统自动化与调度4. 电气工程及其自动化专业的实践应用4.1 电气工程实践应用:电力系统设计、电气设备维护等4.2 自动化控制实践应用:自动化生产线控制、工业过程控制等4.3 电子技术实践应用:电子产品设计、电子设备维修等5. 电气工程及其自动化专业的就业前景和发展方向5.1 就业前景:电力公司、电子制造企业、自动化控制系统公司等5.2 发展方向:智能电网技术、机器人技术、新能源技术等总结:综上所述,电气工程及其自动化专业是一门综合性强、应用广泛的学科。
通过学习该专业,可以获得电气工程和自动化控制方面的基础知识和技能,并能在电力、电子、自动化等领域中应用所学知识。
未来,电气工程及其自动化专业将继续发展,为社会的电力、电子和自动化领域的发展做出更大的贡献。
电气工程及自动化专业英语第八章课后习题答案
电气工程及自动化专业英语第八章课后习题答案I ・ Translate the following phrases into English1. motor ;2. generator;3. mechanical energy;4. electrical energy;5. electromagnetic;6. linear motor;7. synchronous machine;8. induction machine;9. stator;10. rotor;11. air gap;12. shaft;13. armature ;14. field winding;15. reactive power;16. braking mode;17. steady-state;18. phase sequence;19. plugging;20. lagging current;21.magnetizing reactance;22. starting current;23. frequency changer;24. induced voltage;25. inverter;26. cycloconverter;27. commutator.Ⅱ.Answer the following questions according to the text1.A motor is a machine that is used to convert electrical energy into mechanical energy.A generator is a machine that is used to convert mechanical energy into electrical energy.2. Because it has the advantages of relatively low cost,simple and rugged construction,minimal maintenance requirements, and good operating characteristics which satisfy a wide variety of loads.3. The rotating field passing through the loops in the rotor always turns more slowly than the rotating field.4.Because no current has to be supplied to the rotor.5. An induction machine can be operated in three regions. They are the motor region,generator region,and the braking region.6. They are generated by three-phase synchronous machines operated as generators.7. They can provide constant mechanical power output or constant torque,adjustable motor speed over wide ranges, precise speed or position control,efficient operation over a wide speed range, rapid acceleration and deceleration,and responsiveness to feedback signals.8. It is a function of the flux in the machine, the speed of its rotor, and a constant that depends on the machine.Ⅲ. Translate the following sentences into Chinese1.根据电机是当发电机使用还是当电动机使用,与机械系统相连的转动部分接入机械输入或提供机械输出。
电气工程及其自动化 英语
电气工程及其自动化英语Electric Engineering and its AutomationElectric engineering is a branch of engineering that is concerned with the study, design, application, and maintenance of electrical systems. These systems includepower generation, transmission, distribution, and utilization. Electric engineering plays a critical role in the development and improvement of our daily lives, as it is responsible for the functionality and optimization of machines, devices, and systems that we rely on every day.One of the key developments in electric engineering in recent years is automation. Automation has revolutionized industries across the globe by increasing efficiency, reducing labor costs, and improving safety. Automation allows for thecontrol and operation of machines or systems without human intervention, thereby increasing the accuracy, speed, and reliability of processes.An example of automation in electric engineering is the useof programmable logic controllers (PLCs). PLCs are electronic devices that can be programmed to control industrialprocesses such as conveyor systems, robotic arms, andassembly lines. They can automate complex processes,improving efficiency, accuracy, and reducing the risk of errors.Another example is the use of smart grids. Smart grids useadvanced technologies to automate the distribution of electricity. They allow for two-way communication between the utility and the customer, enabling real-time monitoring and control of electricity usage, reducing consumption, and improving energy efficiency.The automation of electric engineering has also increased the availability of data analysis, allowing for better decision making through the use of mathematical modeling and simulation. This has led to the development of newtechnologies and the improvement of existing ones.In conclusion, electric engineering and its automation have become essential components of modern living. From power generation to distribution, from manufacturing to transportation, electric engineering plays a critical role in our everyday lives. With the continued development of automation technologies and their integration into electric engineering, we can expect further improvements to efficiency, safety, and sustainability.。
电气工程及其自动化专业英语介绍
电气工程及其自动化专业英语介绍第一篇:电气工程及其自动化专业英语介绍Electrical Engineering and AutomationElectrical Engineering and Automation was created at forty years ago.AS a new subject, it is relating to many walks of life, small to a switch designed to study aerospace aircraft, has its shadow.Electrical Engineering and Automation of electrical information professional is an emerging field of science, but because of people's daily lives and industrial production is closely related to the extraordinarily rapid development of relatively more mature now.High-tech industry has become an important component of the widely used in industry, agriculture, national defense and other fields, in the national economy is playing an increasingly important role.Worse more, Electrical Engineering and Automation is very hard to learn.The graduate should obtain much knowledge and ability.Such as natural science foundations include more sturdy mathematics, physics, etc, better Humanity, social science basic for sum foreign language for integration capability.Besides the essential technological basic theory knowledge of the originally professional field, mainly include circuit, electric magnetic field theory, electronic technology, information place in system Paying attention to, control theory, computer software andhardware basic theories.And so on.Control theory and electrical network theory is a professional electrical engineering and automation of the base, power electronics technology, computer technology is its main technical means, but also includes a system analysis, system design, system development and system management and decision-making research.Thereare some characteristics of the profession, that is, combining the strength of power, electrical and electronic technology, software and hardware combined with a cross-disciplinary nature, electricity, electronics, control, computer integrated multi-disciplinary, so that graduates with strong adaptation capacity.电气10-3班魏学军25号第二篇:电气工程及其自动化专业英语induction machine 感应式电机 horseshoe magnet 马蹄形磁铁magnetic field 磁场eddy current 涡流right-hand rule 右手定则left-hand rule 左手定则slip 转差率induction motor 感应电动机rotating magnetic field 旋转磁场 winding 绕组 stator 定子 rotor 转子 induced current 感生电流 time-phase 时间相位 exciting voltage 励磁电压 solt 槽 lamination 叠片 laminated core 叠片铁芯 short-circuiting ring 短路环 squirrel cage 鼠笼 rotor core 转子铁芯 cast-aluminum rotor 铸铝转子 bronze 青铜 horsepower 马力 random-wound 散绕 insulation 绝缘 ac motor 交流环电动机 end ring 端环alloy 合金 coil winding 线圈绕组 form-wound 模绕 performance characteristic 工作特性 frequency 频率revolutions per minute 转/分分motoring 电动机驱动generating 发电 per-unit value 标么值 breakdown torque 极限转矩breakaway force 起步阻力overhauling 检修wind-driven generator 风动发电机 revolutions per second 转/秒秒 number of poles 极数 speed-torque curve 转速力矩特性曲线 plugging 反向制动 synchronous speed 同步转速 percentage 百分数 locked-rotor torque 锁定转子转矩 full-load torque 满载转矩 prime mover 原动机inrush current 涌流magnetizing reacance 磁化电抗line-to-neutral 线与中性点间的 staor winding 定子绕组 leakage reactance 漏磁电抗no-load 空载full load 满载多相(的Polyphase 多相的)iron-loss 铁损 complex impedance 复数阻抗 rotor resistance 转子电阻 leakage flux 漏磁通 locked-rotor 锁定转子 chopper circuit 斩波电路 separately excited 他励的 compounded 复励 dc motor 直流电动机 de machine 直流电机 speed regulation 速度调节 shunt 并励series 串励armature circuit 电枢电路optical fiber 光纤interoffice 局间的wave guide 波导波导管bandwidth 带宽light emitting diode 发光二极管silica 硅石二氧化硅 regeneration 再生后反馈放大再生, coaxial 共轴的同轴的共轴的,同轴的 high-performance 高性能的 carrier 载波 mature 成熟的 Single Side Band(SSB)单边带 coupling capacitor 结合电容 propagate 传导传播 modulator 调制器 demodulator 解调器 line trap 限波器 shunt 分路器 Amplitude Modulation(AM 调幅 Frequency Shift Keying(FSK)移频键控 tuner 调谐器 attenuate 衰减incident 入射的two-way configuration 二线制generator voltage 发电机电压 dc generator 直流发电机 polyphase rectifier 多相整流器boost 增压time constant 时间常数forward transfer function 正向传递函数error signal 误差信号regulator 调节器stabilizing transformer 稳定变压器time delay 延时direct axis transient time constant 直轴瞬变时间常数 transient response 瞬态响应 solid state 固体 buck 补偿 operational calculus 算符演算 gain 增益 pole 极点 feedback signal 反馈信号 dynamic response 动态响应voltage control system 电压控制系统mismatch 失配error detector 误差检测器 excitation system 励磁系统 field current 励磁电流transistor 晶体管high-gain 高增益boost-buck 升压去磁feedback system 反馈系统 reactive power 无功功率 feedback loop 反馈回路 automatic Voltage regulator(AVR)自动电压调整器自动电压调整器 reference Voltage 基准电压 magnetic amplifier 磁放大器amplidyne 微场扩流发电机self-exciting 自励的limiter 限幅器manual control 手动控制 block diagram 方框图 linear zone 线性区potential transformer 电压互感器stabilization network 稳定网络stabilizer 稳定器 air-gap flux 气隙磁通 saturation effect 饱和效应saturation curve 饱和曲线 flux linkage 磁链 per unit value 标么值shunt field 并励磁场 magnetic circuit 磁路 load-saturation curve 负载饱和曲线 air-gap line 气隙磁化线 polyphase rectifier 多相整流器circuit components 电路元件circuit parameters 电路参数electrical device 电气设备 electric energy 电能 primary cell 原生电池电能转换器energy converter 电能转换器conductor 导体heating appliance 电热器 direct-current 直流 time invariant 时不变的 self-inductor 自感 mutual-inductor 互感 the dielectric 电介质storage battery 蓄电池 e.m.f = electromotive force电动势 generator 发电机 gas insulated substation GIS 气体绝缘变电站气体绝缘变电站 turbogenerator 汽轮发电机 neutral point 中性点hydrogenerator 水轮发电机 moving contact 动触头 hydraulic turbine 水轮机fixed contact 静触头steam turbine 汽轮机arc-extinguishing chamber 灭弧室dynamo 直流发电机stray capacitance 杂散电容motor 电动机stray inductance 杂散电感stator 定子sphere gap 球隙rotor 转子bushing tap grounding wire 套管末屏接地线power transformer 电力变压器electrostatic voltmeter 静电电压表 variable transformer 调压变压器 ammeter 电流表 taped transformer 多级变压器 grounding capacitance 对地电容 step up(down)transformer 升(降)压变压器 voltage divider 分压器降压变压器 circuit breaker CB 断路器 surge impedance 波阻抗dead tank oil circuit breaker 多油断路器 Schering bridge 西林电桥live tank oil circuit breaker 少油断路器 Rogowski coil 罗可夫斯基线圈 vacuum circuit breaker 真空断路器 oscilloscope 示波器 sulphur hexafluoride breaker SF6 断路器 peak voltmeter 峰值电压表峰值电压表potential transformer PT 电压互感器conductor 导线current transformer CT 电流互感器 cascade transformer 串级变压器disconnector 隔离开关coupling capacitor 耦合电容earthingswitch 接地开关 test object 被试品 synchronous generator 同步发电机 detection impedance 检测阻抗 asynchronous machine 异步电机 substation 变电站 Insulator 绝缘子 hydro power station 水力发电站 lightning arrester 避雷器 thermal power station 火力发电站metal oxide arrester MOA 氧化锌避雷器 nuclear power station 核电站bus bar 母线oil-filled power cable 充油电力电缆overhead line 架空线mixed divider(阻容混合分压器阻容)混合分压器阻容transmission line 传输线XLPE cable 交链聚乙烯电缆(coaxial)cable(同轴电缆 relay 继电器同轴)电缆同轴 iron core 铁芯tuned circuit 调谐电路 winding 绕组 suspension insulator 悬式绝缘子bushing 套管porcelain insulator 陶瓷绝缘子波头(尾电阻front(tail)resistance 波头尾)电阻glass insulator 玻璃绝缘子inverter station 换流站 flash counter 雷电计数器 steel-reinforced aluminum conductor 充电(阻尼阻尼)电阻钢芯铝绞线charging(damping)resistor 充电阻尼电阻 tank 箱体 point plane gap 针板间隙 earth(ground)wire 接地线 exciting winding 激磁绕组grading ring 均压环trigger electrode 触发电极highvoltage engineering 高电压工程glow discharge 辉光放电highvoltage testing technology 高电压试验技术harmonic 谐波Power electronics 电力电子Automatic control 自动控制Principles of electric circuits 电路原理 Digital signal processing 数字信号处理电气工程专业英语词汇表2 power system 电力系统impulse current 冲击电流 power network 电力网络 impulse flashover 冲击闪络 insulation 绝缘 inhomogenous field 不均匀场 overvoltage 过电压insulation coordination 绝缘配合aging 老化internal discharge 内部放电 alternating current 交流电 lightning stroke 雷电波 AC transmission system 交流输电系统 lightning overvoltage 雷电过电压介质)损耗角 arc discharge 电弧放电 loss angle(介质损耗角介质attachment coefficient 附着系数magnetic field 磁场attenuation factor 衰减系数mean free path 平均自由行程anode(cathode)阳极阴极 mean molecular velocity 平均分子速度阳极(阴极阴极)breakdown(电)击穿negative ions 负离子电击穿bubble breakdown 气泡击穿 non-destructive testing 非破坏性试验cathode ray oscilloscope 阴极射线示波器 non-uniform field 不均匀场 cavity 空穴腔 partial discharge 局部放电空穴,腔 corona 电晕peak reverse voltage 反向峰值电压 composite insulation 组合绝缘photoelectric emission 光电发射 critical breakdown voltage 临界击穿电压 photon 光子 Discharge 放电 phase-to-phase voltage 线电压 Dielectric 电介质绝缘体 polarity effect 极性效应电介质,绝缘体 dielectric constant 介质常数 power capacitor 电力电容 dielectric loss 介质损耗quasi-uniform field 稍不均匀场direct current 直流电radio interference 无线干扰divider ratio 分压器分压比rating of equipment 设备额定值grounding 接地routing testing 常规试验electric field 电场 residual capacitance 残余电容 electrochemical deterioration 电化学腐蚀 shielding 屏蔽 electron avalanche 电子崩short circuit testing 短路试验electronegative gas 电负性气体space charge 空间电荷 epoxy resin 环氧树脂 streamer breakdown 流注击穿expulsion gap 灭弧间隙surface breakdown 表面击穿field strength 场强 sustained discharge 自持放电 field stress 电场力switching overvoltage 操作过电压field distortion 场畸变thermal breakdown 热击穿 field gradient 场梯度 treeing 树枝放电field emission 场致发射 uniform field 均匀场 flashover 闪络 wave front(tail)波头尾)波头(尾gaseous insulation 气体绝缘withstand voltage 耐受电压Prime mover 原动机Power factor 功率因数Torque 力矩Distribution automation system 配电网自动化系统Servomechanism 伺服系统Automatic meter reading 自动抄表Boiler 锅炉Armature 电枢Internal combustion engine 内燃机Brush 电刷Deenergize 断电 Commutator 换向器 Underground cable 地下电缆Counter emf 反电势电气工程专业英语词汇表3 退磁,去磁Loop system 环网系统Demagnetization 退磁去磁Distribution system 配电系统 Relay panel 继电器屏 Trip circuit 跳闸电路 Tertiary winding 第三绕组 Switchboard 配电盘开关屏 Eddy current 涡流配电盘,开关屏Instrument transducer 测量互感器Copper loss 铜损Oil-impregnated paper 油浸纸绝缘 Iron loss 铁损 Bare conductor 裸导线 Leakage flux 漏磁通 Reclosing 重合闸 Autotransformer 自耦变压器 Distribution dispatch center 配电调度中心 Zero sequence current 零序电流 Pulverizer 磨煤机 Series(shunt)compensation 串(并)联补偿并联补偿汽包,炉筒 Drum 汽包炉筒 Restriking 电弧重燃Superheater 过热器 Automatic oscillograph 自动录波仪 Peak-load 峰荷 Tidal current 潮流 Prime grid substation 主网变电站 Trip coil 跳闸线圈 Reactive power` 无功功率 Synchronous condenser 同步调相机 Active power 有功功率 Main and transfer busbar 单母线带旁路 Shunt reactor 并联电抗器 Feeder 馈电线 Blackout 断电、停电Skin effect 集肤效应断电、Extra-high voltage(EHV)超高压Potential stress 电位应力电场强度电位应力(电场强度电场强度)Ultra-high voltage(UHV)特高压Capacitor bank 电容器组Domestic load 民用电crusher 碎煤机Reserve capacity 备用容量pulverizer 磨煤机 Fossil-fired power plant 火电厂 baghouse 集尘室 Combustion turbine 燃气轮机 Stationary(moving)blade 固定可动叶片固定(可动可动)叶片Right-of-way 线路走廊Shaft 转轴Rectifier 整流器Kinetic(potential)energy 动(势)能Inductive(Capacitive)电势能感的(电容的电容的)感的电容的Pumped storage power station 抽水蓄能电站Reactance(impedance)电抗阻抗Synchronous condenser 同步调相机电抗(阻抗阻抗)Reactor 电抗器 Light(boiling)-water reactor 轻(沸)水反应堆沸水反应堆电抗的,无功的Reactive 电抗的无功的Stator(rotor)定(转)子Phase displacement(shift)相移转子Armature 电枢Surge 冲击过电压Salient-pole 凸极冲击,过电压Retaining ring 护环Slip ring 滑环Carbon brush 炭刷Arc suppression coil 消弧线圈Short-circuit ratio 短路比Primary(backup)relaying 主(后备继电保护后备)继电保护后备Induction 感应 Phase shifter 移相器 Autotransformer 自藕变压器Power line carrier(PLC)电力线载波器)电力线载波(器 Bushing 套管Line trap 线路限波器 Turn(turn ratio)匝(匝比变比 Uninterruptible power supply 不间断电源匝比,变比匝比变比)Power factor 功率因数 Spot power price 实时电价分时(电价电价)Tap 分接头 Time-of-use(tariff)分时电价Recovery voltage 恢复电压 XLPE(Cross Linked Polyethylene)交联聚乙烯(电缆电缆)交联聚乙烯电缆Arc reignition 电弧重燃Rms(root mean square)均方根值 Operationmechanism 操动机构 RF(radio frequency)射频电气工程专业英语词汇表4 Pneumatic(hydraulic)气动(液压)Rpm(revolution per minute)转/ 分Nameplate 铭牌LAN(local area network)局域网Independent pole operation 分相操作 LED(light emitting diode)发光二极管 Malfunction 失灵 Single(dual, ring)bus 单(双,环形母线环形)母线双环形 Shield wire 避雷线 IC(integrated circuit)集成电路Creep distance 爬电距离 FFT(fast Fourier transform)快速傅立叶变换 Silicon rubber 硅橡胶 Telemeter 遥测 Composite insulator 合成绝缘子Load shedding 甩负荷Converter(inverter)换流器逆变器Lateral 支线换流器(逆变器逆变器)Bus tie breaker 母联断路器Power-flow current 工频续流Protective relaying 继电保护sparkover 放电 Transfer switching 倒闸操作 Silicon carbide 碳化硅Outgoing(incoming)line 出(进)线 Zinc oxide 氧化锌进线相位超前(滞后滞后)Phase Lead(lag)相位超前滞后 Withstand test 耐压试验Static var compensation(SVC)静止无功补偿Dispatcher 调度员Flexible AC transmission system(FACTS)灵活交流输电系统Supervisory control and data acquisition(SCADA)监控与数据采集EMC(electromagnetic compatibility)电磁兼容ISO(internationalstandardization organization)国际标准化组织GIS(gas insulated substation, geographic information system)气体绝缘变电站地理信息系统 IEC(international Electrotechnical Commission)国际电工(技术技术)委员会国际电工技术委员会 IEEE(Institute of Electrical and Electronic Engineers)电气与电子工程师学会(美)美IEE(Institution of Electrical Engineers)电气工程师学会(英电气工程师学会英)scale 刻度量程 calibrate 校准刻度,量程 rated 额定的 terminal 接线端子保险丝,熔丝 fuse 保险丝熔丝 humidity 湿度 resonance 谐振共振 moisture 潮湿湿气谐振,共振潮湿,湿气 analytical 解析的 operation amplifier 运算放大器numerical 数字的amplitude modulation(AM)调幅frequency-domain 频域frequency modulation(FM)调频time-domain 时域binary 二进制 operation amplifier 运算放大器 octal 八进制 active filter 有源滤波器decimal 十进制passive filter 无源滤波器hexadecimal 十第三篇:电气工程及其自动化专业英语电气工程及其自动化专业英语老师:学生:专业:电气工程及其自动化学院:学号:Automatic Control system自动控制系统When a specific systemis proposed for a given application,it mustsatisfy certain requirements.This may involve the system response or optimization of the system in a specified way.These requirements that a control system must meet are generally called performance specifications.当一个精细的系统被推引入一个给定的应用程序的时候,它必须满足这个特定的要求。
电气工程及其自动化专业英语词汇
电气工程及其自动化Electrical Engineering and Automation专业英语词汇English VocabularyEdit by zhao Guoshu,on Aprial 7,2009电气工程专业英语词汇表electrical engineering 电气工程generator发电机gas insulated substation GIS 气体绝缘变电站turbogenerator 汽轮发电机neutral point中性点hydrogenerator 水轮发电机movable contact 动触头hydraulic turbine 水轮机fixed contact静触头steam turbine 汽轮机arc-extinguishing chamber灭弧室arc-extinguish 灭弧arc-suppression 灭弧setting value整定值dynamo直流发电机inductive (capacitive)电感的(电容的) capacitive coupling电容性耦合inductive coupling电感性耦合stray capacitance杂散电容grounding capacitance 对地电容power capacitor 电力电容residual capacitance 残余电容capacitor bank 电容器组coupling capacitor耦合电容parasitic coupling capacitor寄生耦合电容decoupling capacitor 去耦电容bypass capacitor 旁路电容motor 电动机stray inductance 杂散电感distributed inductane分布电感stator定子sphere gap 球隙rotor转子bushing tap grounding wire 套管末屏接地线power transformer电力变压器electrostatic voltmeter 静电电压表multimeter万用表voltage drop电压降forward voltage drop正向压降variable transformer 调压变压器power transfer电能传输,功率转换ammeter电流表taped transformer 多级变压器step up (down) transformer升(降)压变压器voltage divider 分压器circuit breaker (CB) 断路器chopper 斩波器over current过电流surge impedance 波阻抗match the impedance 阻抗匹配neutral point中性点dead tank oil circuit breaker 多油断路器schering bridge 西林电桥live tank oil circuit breaker 油断路器rogowski coil !"#$%线英vacuum circuit breaker'(断路器oscilloscope)波器sulphur hexafluoride breaker SF6断路器peak voltmeter *值电压表trip unit +,器potential transformer PT 电压体感器conductor .线current transformer CT 电流体感器cascade transformer /级变压器disconnector 0123earthing switch 接地汽轮test object 456synchronous generator78发电机synchronous motor/machine78电动机stepper/stepping motor89电机brushless DC motor:;直流电机form factor波灭弧室gain?@analog AB的digital>C的linear power supply工感电的steady-state FGon-state voltage HG压降on-state resistance HG电阻detection impedance IJ阻抗asynchronous machine K8电机substation 变电站insulator 绝缘子hydro power station 水力发电站lightning arrester LM器thermal power station N力发电站电气工程专业英语词汇表metal oxide arrester MOA OPQLM器nuclear power station R电站bus bar S线oil-filled power cable T油电力电旁overhead line V(线mixed divider (阻容)W合分压器transmission line 传输线XLPE cable XYZ[\电旁(coaxial) cable (7])电旁relay^电器contactor接触器pull-in current 动末电流drop-out current`a电流Schmitt trigger bcd触发器iron core eftuned circuit 调正电路interface circuit接向电路integrated circuit (IC)ij电路winding k组suspension insulator lm绝缘子bushing 套管time-varying n变的porcelain insulator op绝缘子front(tail) resistance 波头(q)电阻glass insulator rs绝缘子inverter station 换流站flash counter M电断室器steel-reinforced aluminum conductorufvw线charging(damping) resistor T电(阻阻)电阻tank y体point plane gap z{|隙earth(ground) wire 接地线exciting winding}~k组grading ring •压环trigger electrode 触发电极firing angle触发角highvoltage engineering 高电压工程glow discharge 辉光放电highvoltage testing technology 高电压性验技术harmonic g波fundamental%波power electronics 电力电子microelectrics technology微电子技术automatic control自动控制principles of electric circuits电路原理digital signal processing>C信号处理digital signal processor>C信号处理器power system 电力弧统impulse current冲击电流power network电力网络impulse flashover 冲击闪络insulation绝缘positive feedback正反馈negative feedback负反馈inhomogenous field 不晶匀场overvoltage过电压transient voltage 瞬强电压clamp voltage箝位电压insulation coordination 绝缘配合aging老寿internal discharge 内部放电direct current (DC)直流电alternating current (AC)X流电lightning stroke M电波AC transmission system X流输电弧统lightning overvoltage M电过电压plug 插头socket插座arc discharge电弧放电dielectric strength 绝缘强度reliability"靠性maintainability维修性durability耐久性validity有效性longevity寿命electric leakage switch漏电汽轮loss angle (介质)损耗角attachment coefficient 附着匀场magnetic field~场permeability~.率attenuation factor 衰减匀场mean free path 平晶自由程anode (cathode)阳极(阴极)mean molecular velocity 平晶分子速度breakdown (电)击穿negative ions 负号子电气工程专业英语词汇表bubble breakdown 气泡击穿non-destructive testing 非破坏性性验cathode ray oscilloscope 阴极射线汇波器non-uniform field 不晶匀场cavity (穴,腔partial discharge局部放电corona 电晕peak reverse voltage 反向表值电压critical breakdown voltage 临界击穿电压withstand voltage 耐受电压phase-to-phase voltage 相电压switching overvoltage ('(23的)操阳过电压recovery voltage 恢复电压voltage rating额定电压blocking voltage 截止电压reverse-blocking voltage 反向截止电压threshold voltage 阈值电压saturation voltage 饱和电压breakdown voltage击穿电压composite insulation 组合绝缘photoelectric emission 光电发射photon 光子optocoulper光耦solar photovoltatic array 太阳能光伏阵列optical fiber 光学纤维light-activated SCR光控晶闸管snubber curcuit缓冲电路holding current维持电流discharge 放电dielectric电介质,绝缘体polarity effect极性效应dielectric constant 介质常矩dielectric loss 介质损耗quasi-uniform field 稍不晶匀场radio interference :线干扰divider ratio 分压器分压比rating of equipment 设备额定值grounding接地routing testing 常规脂验electric field 电场electrochemical deterioration 电器学腐蚀shielding 屏蔽electron avalanche 电子崩short-circuit test短路性验no-load test(载脂验normally-open常闭normally-closed常闭electronegative gas 电负性气体space charge (|电荷epoxy resin 环效树脂streamer breakdown 流注击穿expulsion gap 灭弧油隙surface breakdown 表面击穿field strength场强sustained discharge 自持放电field stress 电场力field distortion 场畸变thermal breakdown 热击穿field gradient 场梯度treeing 树枝放电field emission 场致发射uniform field •匀场flashover 闪络wave front(tail) 波头(恢)gaseous insulation 气体绝缘prime mover原动机power factor功率因矩torque力矩,转矩periphery 外围distribution automation system配电网自动器弧统distribution system配电弧统distribution feeder配电线路servomechanism伺服机构(=统)servo system伺服因统automatic meter reading 自动抄表frequency changer D率变换器boiler 锅炉armature winding 电枢停组field winding励轻停组internal combustion engine 内燃机brush 电静deenergize 断电commutator换向器carbon brush碳枝underground cable 地下电旁EMF(Electro-Motive force) 电动势电气工程专业英语词汇表counter EMF反电动势MMF(Magneto-Motive Force)~动势flux linkage~Yreluctance~阻loop system 环网匀统demagnetization 退轻,去林relay panel ^电器屏trip circuit跳闸电路tertiary winding 第三停组switchboard 配电盘,汽轮屏eddy current涡流instrument transducer J量蚀感器copper loss铜损oil-impregnated paper 油浸纸绝缘iron loss e损bare conductor 裸蔽线leakage flux漏纤度flux-density ~Hc度reclosing 重合闸autotransformer 自耦变压器distribution dispatch center 配电调度中心Zero sequence current 零序电流pulverizer 磨煤机series (shunt) compensation /(并)联补偿drum 汽包,炉筒restriking 电弧重燃superheater 过热器automatic oscillograph 自动录波仪peak-load *荷tidal current 潮流prime grid substation 主网变电站trip coil 跳闸线英instantaneous power 瞬强功率active power有功功率reactive power:功功率radian frequency角部率current capacity载流容量synchronous condenser 78调相机active power有功功率main and transfer busbar 单量线带旁路shunt reactor 并联电抗器feeder 馈电线blackout 断电、停电skin effect i肤效应extra-high voltage (EHV) 超高压potential stress 电位应力(电场强度)ultra-high voltage (UHV) d高压domestic load 民用电crusher 碎煤机reserve capacity 备用容量fossil-fired power plant N电厂baghouse i尘室combustion turbine 燃气轮机stationary (moving) blade 固定(角动)叶片right-of-way 线路走廊shaft转套rectifier整流器full-wave rectification 全波整流forward-biased 正向偏置ripple脉动spike 尖备kinetic(potential) energy 动(势)能pumped storage power station 抽水蓄能电站reactance (impedance) 电抗(阻抗)reactor 电抗器light(boiling)-water reactor 轻(沸)水反应堆reactive 电抗的,头功的stator(rotor) 定(转)子phase displacement (shift) 相移armature 电枢surge 冲击,过电压salient-pole凸极retaining ring 护环slip ring滑环collector ring i电环carbon brush炭千arc suppression coil 消弧线英short-circuit ratio短路比cross section横截面primary(backup) relaying 主(后备)^电保护induction感应phase shifter 移相器sinusoidal distribution 正弦分布autotransformer 自藕变压器power line carrier (PLC) 电力线载波(器) bushing 套管line trap 线路限波器turn (turn ratio)匝(匝比,变比)电气工程专业英语词汇表uninterruptible power supply(UPS)不列断电的switch-mode/switching power supply23电的power factor功率因矩line-frequency 工感spot power price 实湿电价tap 分接头time-of-use(tariff) 分功(电价)XLPE(Cross Linked Polyethylene)X联零序磨(电旁)arc re-ignition电弧重燃rms (root mean square) •方根值operation mechanism 操动机构RF (radio frequency) 射部pneumatic(hydraulic) 气动(液压)rpm (revolution per minute) 转/分nameplate 铭牌LAN (local area network) 局域网independent pole operation 分相操阳LED (light emitting diode)发光二极管photo transisitor 光电三极管free-wheeling diode续流二极管schottky barrier diode肖委炭势垒二极管fast-recovery diode快恢复二极管kilovolt千伏kiloampere 千安millisecond 毫秒microsecond微秒malfunction 失灵single (dual, ring) bus 单(双,环不)S线shield wire LM线IC (integrated circuit)ij电路creep distance 爬电距根FFT (fast Fourier transform) 快速傅立叶变换silicon rubber 硅橡胶telemeter 遥甩composite insulator 合能绝缘子load shedding 甩负荷invertion 逆变oscillator 晶体振荡器converter (inverter) 换流器(逆变器)step-down converter降压变换器step-up converter 升压变换器full-bridge converter全桥变换器PWM(pulse-width modulation)脉宽调制duty ratio 占后比soft-start软启动lateral 支线bus tie breaker S联断路器power-flow current 工感续流protective relaying^电保护sparkover 放电transfer switching 倒闸操阳silicon carbide碳三硅outgoing (incoming) line 出(9)线Zinc oxide OPQphase lead(lag) 相位超前(滞后)withstand test 耐压性验static var compensation (SVC) 静止馈功补偿dispatcher 调度员Flexible AC transmission system (FACTS)灵活活流输电弧统supervisory control and data acquisition (SCADA) 监控与秒据采校EMI (electromagnetic interference)电林干扰EMC (electromagnetic compatibility)电林兼容ISO (international standardization organization) 国际标准软组织GIS (gas insulated substation, geographic information system)气体绝缘变电站,地理信息毫统IEC (international Electrotechnical Commission)国际电工(技术)委员会IEEE (Institute of Electrical and Electronic Engineers)电气与电子工程师学会(美)IEE (Institution of Electrical Engineers)电气工程师学会(英)scale 刻度,量程calibrate 校准rated 额定的terminal接线端子fuse 熔断器,保险丝,熔丝humidity湿度resonance g振,共振moisture潮湿,湿气analytical 解析的电气工程专业英语词汇表numerical>C的amplitude modulation (AM)调幅frequency-domain D域frequency modulation (FM)调感time-domain n域binary二垒制operation amplifier运算放大器octal八垒制filter滤波,滤波器active filter有插滤波器decimal十垒制passive filter :E滤波器hexadecimal 十六垒制rms(root mean square)•方根。
电气工程及其自动化专业英语
voltage drop 电压降 volt-ampere characteristics 伏安特性
metal-filament lamp 金属丝灯泡
carbon-filament lamp 碳丝灯泡
non-linear characteristics 非线性特性
Unit 1 Circuit Elements and Parameters
• With time-invariant currents and voltages, the magnetic anห้องสมุดไป่ตู้ electric fields of the associated electric plant are also timeinvariant. This is the reason why no e.m.f.s of self- (or mutual-)induction(自感或互感)appear in D.C. circuits, nor are there (倒装结构)any displacement currents (位移电 流)in the dielectric surrounding the conductors(导体周围的 电介质).
Techniques
Unit 1 Specialized English Words
circuit components 电路元件
circuit parameters 电路参数
the dielectric 电介质
storage battery 蓄电池
electric circuit 电路
wire导线
电气工程及其自动化专业英语
Specialized English for Electrical Engineering & Its Automation
电气工程及其自动化专业英语介绍
电气工程及其自动化专业英语介绍Introduction:Electrical Engineering and its Automation is a field of study that combines electrical engineering principles with automation techniques. This discipline focuses on the design, development, and implementation of electrical systems and their control using various automation technologies. In this article, we will delve into the various aspects of Electrical Engineering and its Automation, including its scope, key concepts, job opportunities, and future prospects.Body:1. Scope of Electrical Engineering and its Automation:1.1 Importance of Electrical Engineering:- Electrical engineering plays a vital role in various industries, including power generation, telecommunications, transportation, and manufacturing.- It involves the design and maintenance of electrical systems, such as power distribution networks, control systems, and electronic devices.1.2 Automation in Electrical Engineering:- Automation techniques are applied to enhance the efficiency, reliability, and safety of electrical systems.- Automation technologies, such as PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition), are used for process control, monitoring, and data acquisition.1.3 Integration of Electrical Engineering and Automation:- The integration of electrical engineering principles with automation technologies enables the development of advanced control systems and intelligent machines.- It facilitates the automation of various industrial processes, leading to increased productivity and reduced human intervention.2. Key Concepts in Electrical Engineering and its Automation:2.1 Electrical Circuit Analysis:- This involves the study of electrical circuits and their behavior using mathematical models and techniques.- Concepts such as Ohm's law, Kirchhoff's laws, and circuit theorems are used to analyze and solve electrical circuit problems.2.2 Power Systems:- Power systems deal with the generation, transmission, and distribution of electrical energy.- Concepts like power generation, power factor correction, and power system protection are essential in ensuring a stable and reliable power supply.2.3 Control Systems:- Control systems involve the regulation and control of electrical processes.- Concepts like feedback control, PID (Proportional-Integral-Derivative) controllers, and system stability are crucial in designing and implementing control systems.3. Job Opportunities in Electrical Engineering and its Automation:3.1 Electrical Engineer:- Electrical engineers are responsible for designing, developing, and maintaining electrical systems.- They work in various industries, including power generation, telecommunications, and manufacturing.3.2 Automation Engineer:- Automation engineers specialize in the design and implementation of automation systems.- They develop control strategies, program PLCs, and integrate automation technologies into electrical systems.3.3 Research and Development:- Electrical engineering and its automation offer numerous research and development opportunities.- Researchers work on developing innovative technologies and improving existing systems to meet the evolving demands of industries.4. Future Prospects in Electrical Engineering and its Automation:4.1 Renewable Energy:- The growing focus on renewable energy sources, such as solar and wind power, presents new challenges and opportunities in electrical engineering and its automation.- Engineers are needed to design and optimize renewable energy systems and integrate them into the existing power grid.4.2 Internet of Things (IoT):- The integration of electrical systems with IoT technologies opens up new avenues for automation and control.- Electrical engineers can leverage IoT to develop smart grids, intelligent buildings, and efficient energy management systems.4.3 Artificial Intelligence (AI):- AI techniques, such as machine learning and neural networks, can be applied to enhance the automation capabilities of electrical systems.- Electrical engineers can explore the use of AI for predictive maintenance, fault detection, and optimization of electrical processes.Conclusion:Electrical Engineering and its Automation is a dynamic field that combines electrical engineering principles with automation technologies. It plays a crucial role in various industries and offers a wide range of job opportunities. The integration of electrical engineering with automation enables the development of advanced control systems and intelligent machines. With the increasing focus on renewable energy, IoT, and AI, the future prospects in this field are promising. As technology continues to advance, electrical engineering and its automation will continue to evolve, driving innovation and shaping the future of industries.。
电气工程及其自动化专业英语介绍
电气工程及其自动化专业英语介绍Introduction to Electrical Engineering and its Automation Major1. IntroductionElectrical Engineering and its Automation is a specialized field that combines electrical engineering principles with automation technologies to design, develop, and control electrical systems and processes. This major focuses on the application of electrical engineering principles in various industries such as power generation, telecommunications, manufacturing, and transportation.2. CurriculumThe curriculum of the Electrical Engineering and its Automation major is designed to provide students with a strong foundation in electrical engineering principles, as well as specialized knowledge in automation technologies. The coursework includes both theoretical and practical components, allowing students to gain hands-on experience in designing and implementing electrical systems.Some of the core courses offered in this major include:- Circuit Analysis- Digital Electronics- Control Systems- Power Systems- Microprocessors and Microcontrollers- Industrial Automation- Robotics and Artificial Intelligence- Instrumentation and Measurements- Electrical Machines and Drives- Communication Systems3. Skills and CompetenciesUpon completion of the Electrical Engineering and its Automation major, graduates will possess a diverse set of skills and competencies. These include:3.1 Technical Skills:- Proficiency in electrical circuit analysis and design.- Knowledge of automation technologies and their application in various industries.- Ability to design and implement control systems for electrical processes.- Familiarity with power generation and distribution systems.- Understanding of digital electronics and microprocessors.- Competence in programming languages used in automation systems.3.2 Analytical and Problem-Solving Skills:- Ability to analyze complex electrical systems and identify potential issues.- Proficiency in troubleshooting and problem-solving in electrical and automation systems.- Capacity to design innovative solutions to improve efficiency and productivity.- Strong mathematical and analytical skills to model and simulate electrical systems.3.3 Communication and Teamwork Skills:- Effective communication skills to collaborate with colleagues and clients.- Ability to work in multidisciplinary teams to solve complex problems.- Strong presentation skills to convey technical information to non-technical stakeholders.4. Career ProspectsGraduates of the Electrical Engineering and its Automation major have a wide range of career opportunities in various industries. Some potential career paths include:4.1 Electrical Engineer:- Designing and developing electrical systems for power generation, transmission, and distribution.- Conducting research and development in electrical engineering.- Troubleshooting and maintaining electrical systems in industrial settings.- Ensuring compliance with safety regulations and industry standards.4.2 Automation Engineer:- Designing and implementing automation systems for manufacturing processes.- Programming and configuring control systems for industrial automation.- Optimizing process efficiency and productivity through automation technologies.- Conducting system integration and testing for automation projects.4.3 Control Systems Engineer:- Designing and implementing control systems for various applications.- Developing algorithms and software for control systems.- Conducting system analysis and optimization for improved performance.- Collaborating with multidisciplinary teams to integrate control systems into complex processes.5. Research and InnovationThe field of Electrical Engineering and its Automation is constantly evolving, with new technologies and innovations emerging. Graduates of this major can pursue research and development opportunities in academia, government agencies, or private industries. They can contribute to advancements in renewable energy systems, smart grid technologies, robotics, artificial intelligence, and more.Conclusion:The Electrical Engineering and its Automation major provides students with a comprehensive understanding of electrical engineering principles and their application in automation technologies. Graduates of this major are equipped with the skills and knowledge necessary to pursue successful careers in various industries. With the increasing demand for automation and control systems, the prospects for professionals in this field are promising.。
电气自动化专业英语1,2,3,5,8,13章翻译
第一章电子测量仪表电子技术人员使用许多不同类型的测量仪器。
一些工作需要精确测量面另一些工作只需粗略估计。
有些仪器被使用仅仅是确定线路是否完整。
最常用的测量测试仪表有:电压测试仪,电压表,欧姆表,连续性测试仪,兆欧表,瓦特表还有瓦特小时表。
所有测量电值的表基本上都是电流表。
他们测量或是比较通过他们的电流值。
这些仪表可以被校准并且设计了不同的量程,以便读出期望的数值。
1.1安全预防仪表的正确连接对于使用者的安全预防和仪表的正确维护是非常重要的。
仪表的结构和操作的基本知识能帮助使用者按安全工作程序来对他们正确连接和维护。
许多仪表被设计的只能用于直流或只能用于交流,而其它的则可交替使用。
注意:每种仪表只能用来测量符合设计要求的电流类型。
如果用在不正确的电流类型中可能对仪表有危险并且可能对使用者引起伤害。
许多仪表被设计成只能测量很低的数值,还有些能测量非常大的数值。
警告:仪表不允许超过它的额定最大值。
不允许被测的实际数值超过仪表最大允许值的要求再强调也不过分。
超过最大值对指针有伤害,有害于正确校准,并且在某种情况下能引起仪表爆炸造成对作用者的伤害。
许多仪表装备了过载保护。
然而,通常情况下电流大于仪表设计的限定仍然是危险的。
1.2基本仪表的结构和操作许多仪表是根据电磁相互作用的原理动作的。
这种相互作用是通过流过导体的电流引起的(导体放置在永久磁铁的磁极之间)。
这种类型的仪表专门适合于直流电。
不管什么时候电流流过导体,磁力总会围绕导体形成。
磁力是由在永久磁铁力的作用下起反应的电流引起。
这就引起指针的移动。
导体可以制成线圈,放置在永久磁铁磁极之间的枢钮(pivot中心)上。
线圈通过两个螺旋型弹簧连在仪器的端子上。
这些弹簧提供了与偏差成正比的恢复力。
当没有电流通过时,弹簧使指针回复到零。
表的量程被设计来指明被测量的电流值。
线圈的移动(或者是指针的偏移)与线圈的电流值成正比。
如果必须要测量一个大于线圈能安全负载的电流,仪表要包含旁路或者分流器。
电气工程与自动化专业英语(第2版)Chapter08-10电子课件
25. procedure n. 程序,规程 35. reliability
n. 可靠性
26. troubleshoot v.
27. laptop
n.
28. sensor
n.
29. bar code
n.
30. bottleneck
故障排除 36. downtime
便携计算机 传感器 条形码
37. criteria 38. simulation
晶体管
Chapter 8 PLC技术
21. motor
n.
22. solenoid
n.
23. scan cycle
24. maintenance n.
电动机 电磁阀 扫描周期
维修,维护
31. networknode 32. modelnumber 33. spare
34. back up
n. 网络节点 n. 型号 n. 备件 adj. 备用的
[4].This helps to avoid hazardous situations in factory rooms (some automakers have established communication networks which regularly check programs in PLC controllers to ensure execution only of good programs). 这有助于工厂车间内避免发生危险情况(一些汽车制造商已 经建立了通信网络,可以通过PLC控制器定期检查程序以确 保运行程序的正确性)。
n.& 数字(的) adj.
压力 n.
7. diode 8. cable
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
5
8.1 Motor Characteristics
1
Static torque–displacement curves
Because of the rotor–stator symmetry, the magnitude i of the restoring torque when the rotor is displaced by a given angle in one direction is the same as the magnitude of the restoring torque when it is displaced by the same angle in the other direction, but of opposite sign.
2
8.1 Motor Characteristics
1
Static torque–displacement curves
Typical static torque–displacement curves for a 3-phase per step VR motor are shown in Figure 8.1.
8
8.1 Motor Characteristics
2
Single-stepping
If we assume that phase A is energized, and the rotor is at rest in the position(see Figure 8. 1) we know that if we want to step in a clockwise direction, the phases must be energized in the sequence ABCA, etc., so we can now imagine that phase A is switched-off, and phase B is energized instead. We will also assume that the decay of current in phase A and the build-up in phase B take place very rapidly, before the rotor moves significantly.
The convention used in Figure 8. 1 is that a clockwise displacement of the rotor corresponds to a movement to the right, while a positive torque tends to move the rotor anticlockwise.
6
8.1 Motor Characteristics
1
Static torque–displacement curves
Stable equilibrium positions(平衡点) (for phase A excited) exist at . They are stable (step)positions because any attempt to move the rotor away from them is resisted by a counteracting or restoring torque.These points correspond to positions where successive rotor poles (which are apart) arealigned with the stator poles of phase A.
Stepping Motor Characteristics and
Add Your Company Slogan
Drives
Stepping Motor Characteristics and Drives
Stepping motors(步进电机) are attractive because they can be controlled directly by computers or microcontrollers(微控制器). Their unique feature is that the output shaft rotates in a series of discrete angular intervals, or steps, one step being taken each time a command pulse is received. This chapter introduces the characteristics and drive circuits of the stepping motors.
7
8.1 Motor Characteristics
Байду номын сангаас
1
Static torque–displacement curves
There are also four unstable equilibrium positions, (at) at which the torque is also zero. These correspond to rotor positions where the stator poles are midway between two rotor poles, and they are unstable because if the rotor is deflected slightly in either direction, it will be accelerated in the same direction until it reaches the next stable position. If the rotor is free to turn, it will therefore always settle in one of the four stable positions.