电气工程及其自动化专业英语(1)重点
电气工程及其自动化专业英语 Chapter 1 Fundamentals of Electric Circuits
Section1 Current and Voltage
flow as the movement of positive charges, that is, opposite to the flow of negative charges, as Fig.l-1 illustrates. This convention was introduced by Benjamin Franklin (l706 ～ l790), the American scientist and inventor. Although we now know that current in metallic conductors is due to negatively charged electrons, we will follow the universally accepted convention that current is the net flow of positive charges. Thus, Electric current is the time rate of charge, measured in amperes (A). Mathematically, the relationship among current i, charge q, and time t is
Section1 Current and Voltage
i
The charge transferred between time t0 and t is obtained by integrating both sides of Eq. (1-1). We obtain t
dq dt
(1-1)
q idt
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.。
专业英语翻译第一章
注：电气工程及其自动化专业英语翻译 1~7面班级：1002班学号：20姓名：王定瑞PART 1 FUNDAMENTALS OF ELECTRIC ENGINEERINGChapter 1 Circuit Fundamentals第1部分的电气工程基础第1章电路原理Electrostatic Charges静电荷Protons and electrons are parts of atoms that make up all things in our world. The positive charge of a proton is similar to the negative charge of an electron. However, a positive charge is the opposite of a negative charge. These charges are called electrostatic charges. Each charged particle is surrounded by an electrostatic field.质子和电子部件的原子构成一切事物在我们的世界。
正电荷的质子是类似于负电荷的电子。
然而,一个正电荷的反面是一个负电荷。
这些指控被称为静电荷。
每个带电粒子周围是一个静电场。
The effect that electrostatic charges have on each other is very important. They either repel (move away) or attract (come together) each other. It is said that like charges repel and unlike charges attract.这个效应,静电指控对方是非常重要的。
他们要么排斥(离开)或吸引(一起)每个其他。
(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
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• 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
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Unit 11 The Transformer on No Load
a result (因此), is called the secondary winding.
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• 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专业英语课文翻译
unit1 taxe A 电力变压器的结构和原理在许多能量转换系统中，变压器是一个不了缺少的原件。
它使得在经济的发电机所产生电能并以最经历的传输电压传输电能，同时对于特定的使用者合适的电压使用电能成为可能。
变压器同样广泛的应用于低功率低电流的电子电路和控制电路中，来执行像匹配电源组抗和负载以求得最大的传输效率。
隔离一个电路与另一个电路在两个电路之间隔离直流电而保证交流电继续通道的功能。
在本质上，变压器是一个由两个或多个绕组通过相互的磁通耦合而组成的，如果这其中的一个绕组，原边连接到交流电压源将产生交流磁通它的幅值决定于原边的电压所提供的电压频率及匝数。
感应磁通将与其他绕组交链，在副边中将感应出一个电压其幅值将取决于副边的匝数及感应磁通量和频率。
通过使原副边匝数比例适应，任何所期望的电压比例或转换比例都可以得到。
变压器工作的本质仅要求存在与两个绕组相交链的时变的感应磁通。
这样的作用也可以发生在通过空气耦合的两组绕组中，但用铁心或其他铁磁材料可以使绕组之间的耦合作用增强，因为一大部分磁通被限制在与两个绕组交链的高磁导率的路径中。
这种变压器通常被称作为心式变压器。
大部分变压器都是这种类型。
以下的讨论几乎全部围绕心事变压器。
为减少铁心中的涡流所产生的损耗，磁路通常由一叠薄的叠片所组成。
如图1.1所示两种常见的结构形式用示意图表示出来。
芯式变压器的绕组绕在两个矩形铁心柱上，壳式变压器的绕组绕在三个铁心柱中间的那个铁心柱上，。
0.14毫米厚的硅钢片通常被用于在低频率低于几百Hz下运行的变压器中，硅钢片具有价格低铁心损耗小，在高磁通密度下，磁导率高的理想性能，能用做高频率低能耗的标准的通讯电路中的小型变压器的铁心是由被称为铁氧体的粉末压缩制成的铁磁合金所构成的。
在这些结构中，大部分的磁通被限制在固定的铁心中与两个绕组相交链。
绕组也产生多余的磁通，像漏磁通，只经过一个绕组和另外的绕组不相交链。
虽然漏磁通只是所有磁通的一小部分，但它在决定变压器的运行情况中起着重要的作用。
电气工程专业英语+unt1参考文档
Unit 1 Fundamentals of Electronic Circuits
1.1 Introduction to Circuit Theory 1.2 Analog and Digital Circuits 1.3 Three-Phase Circuits 1.4 Further Reading
Notice that the three points that form node b ① are connected by perfectly conducting wires and therefore constitute a single point.
Note:① "three points that form node b "表示"形成节点
b的3个点".此句可译为:注意到形成节点b的3个点是通过理
elements or devices, whereas a circuit is a network
providing one or more closed paths③.
Note：②：regard … as表示“把…认为” NNoottee：：③①：：pdrioffveirtfherse为ntiate nbeettwwoerekn的A后an置d 定B表语示。区分A和B；To differentiate between a circuit and a network是目的状语从句.
series
n. 连续；系列；级数；串联
parallel
adj. 平行的；并联的 n. 平行线；平
行面；v. 相应；平行
impedance
n. [电]阻抗；全电阻；[物]阻抗
theorem
n. [数]定理；法则
电气工程及其自动化专业英语
time-invariant 时不变的
self-(or mutual-)induction 自（互）感
displacement current 位移电流 conductance 电导
voltage drop 电压降 volt-ampere characteristics 伏安特性
metal-filament lamp 金属丝灯泡
seen, increase of current from zero to
I≈I1 causes the terminal voltage of the source to decrease linearly
V12=V=E－VS=E－RSI
Fig.1.3
In other words, the voltage drop VS across the source resistance rises in proportion to the current. This goes on until
刘剑-电气工程及其自动化专业英语(建筑电气类)Unit1-passage A
TextElectric CircuitThe diagram of Fig 1.1 illustrates the essential parts of an electric circuit,which consists,in its simplest form, of an energy source and an interconnected energy dissipation or conversionload.device,known as theexample,on/electro-chemical,electro-magnetic,thermo-electric,photo-electric.,principles,but for the purpose of circuit analysis only two idealized forms are recognized, to one of which all practical sources approximate, They are: the voltage source and the current source.The voltage source maintains a constant terminal voltage irrespective of the current supplied to the load. It is important to appreciate that the voltage may be a function of, for example, time, temperature, pressure etc. It is constant without respect to variation of load.The current source maintains a constant in the load irrespective of the terminal voltage-which, in this case, is determined by the magnitude of the load, As with the voltage source, the generated current may depend on many other factors, but its one essentialattribute is its independence of load.The symbols used for these active devices are illustrated in Fig 1.2 (a) and （b ）。
电气工程及其自动化专业英语第一单元课件
AC and DC electricity
AC (Alternating Current): The flow of electricity in which the direction of current changes periodically.
DC (Direct Current): The flow of electricity in which the direction of current remains constant.
02
Basic knowledge of electrical engineering
Basic concepts of circuits
Circuit
A closed path that allows current to flow.
Series and parallel circuits
Series circuits have current flow in the same direction, while parallel circuits have current flow in opposite directions.
Over time, Electrical Engineering and Automation has evolved to include a wide range of sub-fields, including power engineering, control systems, robotics, and more.
Computer control systems can be used for a wide range of applications, including industrial manufacturing, process control, aviation, and more.
(完整版)刘剑-电气工程及其自动化专业英语(建筑电气类)Unit1-passageA
TextElectric CircuitThe diagram of Fig 1.1 illustrates the essential parts of an electric circuit，which consists，in its simplest form, of an energy source and an interconnected energy dissipation or conversion device，known as theload.A practical energy source may take one many forms， depending, for example，on/electro —chemical，electro-magnetic,thermo—electric，photo-electric.，principles，but for the purpose of circuit analysis only two idealized forms are recognized， to one of which all practical sources approximate， They are： the voltage source and the current source.The voltage source maintains a constant terminal voltage irrespective of the current supplied to the load. It is important to appreciate that the voltage may be a function of, for example, time, temperature， pressure etc. It is constant without respect to variation of load。
电气工程及其自动化专业英语词汇表
generator 发电机发电机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 neutral point point 中性点中性点 hydrogenerator 水轮发电机 moving moving contact contact 动触头动触头 hydraulic turbine 水轮机 fixed fixed contact contact静触头静触头 steam turbine 汽轮机 arc-extinguishing arc-extinguishing chamber chamber 灭弧室灭弧室 dynamo 直流发电机 stray stray capacitance capacitance 杂散电容杂散电容 motor 电动机 stray stray inductance inductance 杂散电感杂散电感 stator 定子 sphere sphere gap gap球隙球隙rotor转子转子 bushing tap grounding wire 套管末屏接地线套管末屏接地线 power power transformer transformer 电力变压器 electrostatic electrostatic voltmeter voltmeter 静电电压表静电电压表 variable transformer 调压变压器 ammeter电流表电流表 taped transformer多级变压器 grounding grounding capacitance capacitance 对地电容对地电容 step up (down) transformer 升(降)压变压器 voltage voltage divider divider 分压器分压器 circuit circuit breaker breaker CB 断路器 surge surge impedance impedance 波阻抗波阻抗 dead tank oil circuit breaker 多油断路器 Schering Schering bridge bridge 西林电桥西林电桥 live tank oil circuit breaker 少油断路器 Rogowski Rogowski coil coil 罗可夫斯基线圈罗可夫斯基线圈 vacuum circuit breaker 真空断路器 oscilloscope 示波器示波器 sulphur hexafluoride breaker SF 6断路器 peak peak voltmeter voltmeter 峰值电压表峰值电压表 potential potential transformer transformer PT 电压互感器 conductor导线导线 current current transformer transformer CT 电流互感器 cascade cascade transformer transformer 串级变压器串级变压器 disconnector 隔离开关 coupling coupling capacitor capacitor 耦合电容耦合电容 earthing switch 接地开关 test test object object被试品被试品 synchronous generator 同步发电机 detection detection impedance impedance 检测阻抗检测阻抗 asynchronous machine 异步电机 substation变电站变电站 Insulator 绝缘子绝缘子 hydro power station 水力发电站水力发电站 lightning arrester避雷器避雷器 thermal power station 火力发电站火力发电站 metal oxide arrester MOA 氧化锌避雷器氧化锌避雷器 nuclear power station 核电站核电站 bus bar 母线母线 oil-filled power cable 充油电力电缆充油电力电缆 overhead line 架空线 mixed mixed divider divider (阻容)混合分压器混合分压器 transmission line 传输线 XLPE XLPE cable cable 交链聚乙烯电缆交链聚乙烯电缆 (coaxial) cable (同轴)电缆 relay 继电器继电器 iron core 铁芯 tuned tuned circuit circuit 调谐电路调谐电路 winding 绕组 suspension suspension insulator insulator 悬式绝缘子悬式绝缘子 bushing套管 porcelain porcelain insulator insulator 陶瓷绝缘子陶瓷绝缘子 front(tail) resistance 波头(尾)电阻 glass glass insulator insulator 玻璃绝缘子玻璃绝缘子 inverter station换流站 flash flash counter counter雷电计数器雷电计数器 steel-reinforced aluminum conductor 钢芯铝绞线charging(damping) charging(damping) resistor resistor充电(阻尼)电阻电阻tank箱体箱体point plane gap 针板间隙针板间隙 earth(ground) wire 接地线 exciting exciting winding winding 激磁绕组激磁绕组 grading ring均压环 trigger trigger electrode electrode 触发电极触发电极 highvoltage engineering 高电压工程 glow glow discharge discharge 辉光放电辉光放电 highvoltage testing technology 高电压试验技术 harmonic 谐波谐波 Power electronics电力电子 Automatic Automatic control control 自动控制自动控制 Principles of electric circuits电路原理电路原理Digital signal processing数字信号处理数字信号处理power system 电力系统 impulse current 冲击电流冲击电流power network 电力网络 impulse flashover 冲击闪络冲击闪络 insulation 绝缘 inhomogenous field 不均匀场不均匀场 overvoltage 过电压 insulation coordination 绝缘配合绝缘配合aging 老化 internal discharge 内部放电内部放电 alternating current 交流电 lightning stroke 雷电波雷电波AC transmission system 交流输电系统 lightning overvoltage 雷电过电压雷电过电压arc discharge 电弧放电 loss angle （介质）损耗角（介质）损耗角 attachment coefficient 附着系数 magnetic field 磁场磁场 attenuation factor 衰减系数平均自由行程衰减系数 mean free path 平均自由行程anode (cathode) 阳极（阴极）平均分子速度阳极（阴极） mean molecular velocity 平均分子速度breakdown （电）击穿 negative ions 负离子负离子bubble breakdown 气泡击穿 non-destructive testing 非破坏性试验非破坏性试验 cathode ray oscilloscope 阴极射线示波器 non-uniform field 不均匀场不均匀场cavity 空穴,腔 partial discharge 局部放电局部放电corona 电晕反向峰值电压电晕 peak reverse voltage 反向峰值电压composite insulation 组合绝缘 photoelectric emission 光电发射光电发射critical breakdown voltage 临界击穿电压 photon 光子光子Discharge 放电 phase-to-phase voltage 线电压线电压 Dielectric 电介质,绝缘体 polarity effect 极性效应极性效应 dielectric constant 介质常数 power capacitor 电力电容电力电容 dielectric loss 介质损耗 quasi-uniform field 稍不均匀场稍不均匀场 direct current 直流电 radio interference 无线干扰无线干扰divider ratio 分压器分压比设备额定值分压器分压比 rating of equipment 设备额定值grounding 接地 routing testing 常规试验常规试验electric field 电场 residual capacitance 残余电容残余电容 electrochemical deterioration 电化学腐蚀 shielding 屏蔽屏蔽electron avalanche 电子崩短路试验电子崩 short circuit testing 短路试验electronegative gas 电负性气体 space charge 空间电荷空间电荷epoxy resin 环氧树脂 streamer breakdown 流注击穿流注击穿 expulsion gap 灭弧间隙 surface breakdown 表面击穿表面击穿field strength 场强 sustained discharge 自持放电自持放电field stress 电场力 switching overvoltage 操作过电压操作过电压field distortion 场畸变 thermal breakdown 热击穿热击穿field gradient 场梯度 treeing 树枝放电树枝放电field emission 场致发射 uniform field 均匀场均匀场 flashover 闪络 wave front(tail) 波头（尾）波头（尾） gaseous insulation 气体绝缘 withstand voltage 耐受电压耐受电压Prime mover 原动机 Power factor 功率因数功率因数 Torque 力矩配电网自动化系统力矩 Distribution automation system 配电网自动化系统Servomechanism 伺服系统自动抄表伺服系统 Automatic meter reading 自动抄表Boiler 锅炉 Armature 电枢电枢Internal combustion engine 内燃机 Brush 电刷电刷 Deenergize 断电 Commutator 换向器换向器 Underground cable 地下电缆 Counter emf 反电势反电势Loop system 环网系统 Demagnetization 退磁，去磁退磁，去磁 Distribution system 配电系统 Relay Relay panel panel 继电器屏继电器屏 Trip circuit 跳闸电路 Tertiary Tertiary winding winding 第三绕组第三绕组 Switchboard 配电盘，开关屏 Eddy Eddy current current 涡流涡流 Instrument transducer 测量互感器 Copper Copper loss loss 铜损铜损 Oil-impregnated paper 油浸纸绝缘 Iron Iron loss loss 铁损铁损 Bare conductor 裸导线 Leakage Leakage flux flux 漏磁通漏磁通 Reclosing重合闸 Autotransformer 自耦变压器自耦变压器 Distribution dispatch center 配电调度中心配电调度中心 Zero sequence current 零序电流零序电流 Pulverizer 磨煤机磨煤机Series (shunt) compensation 串（并）联补偿串（并）联补偿 Drum 汽包，炉筒 Restriking电弧重燃电弧重燃 Superheater 过热器 Automatic Automatic oscillograph oscillograph 自动录波仪自动录波仪 Peak-load峰荷 Tidal Tidal current current 潮流潮流 Prime grid substation 主网变电站 Trip Trip coil coil跳闸线圈跳闸线圈 Reactive power` 无功功率 Synchronous Synchronous condenser condenser 同步调相机同步调相机 Active power 有功功率有功功率 Main and transfer busbar 单母线带旁路单母线带旁路 Shunt reactor 并联电抗器 Feeder 馈电线馈电线 Blackout断电、停电 Skin Skin effect effect 集肤效应集肤效应Extra-high voltage (EHV) 超高压 Potential Potential stress stress 电位应力(电场强度) Ultra-high voltage (UHV) 特高压 Capacitor Capacitor bank bank 电容器组电容器组 Domestic load 民用电 crusher 碎煤机碎煤机 Reserve capacity 备用容量 pulverizer 磨煤机磨煤机 Fossil-fired power plant 火电厂 baghouse集尘室集尘室Combustion turbine 燃气轮机燃气轮机 Stationary (moving) blade 固定（可动）叶片固定（可动）叶片 Right-of-way 线路走廊 Shaft转轴转轴 Rectifier整流器 Kinetic(potential) Kinetic(potential) energy energy 动（势）能动（势）能 Inductive (Capacitive) 电感的(电容的) Pumped storage power station 抽水蓄能电站抽水蓄能电站 Reactance (impedance) 电抗（阻抗） Synchronous Synchronous condenser condenser 同步调相机同步调相机 Reactor 电抗器Light(boiling)-water Light(boiling)-water reactor reactor 轻（沸）水反应堆轻（沸）水反应堆 Reactive电抗的，无功的 Stator(rotor) 定（转）子定（转）子 Phase displacement (shift) 相移Armature 电枢电枢 Surge 冲击，过电压 Salient-pole 凸极凸极 Retaining ring 护环 Slip Slip ring ring滑环滑环 Carbon brush 炭刷炭刷 Arc suppression coil 消弧线圈消弧线圈 Short-circuit ratio 短路比 Primary(backup) Primary(backup) relaying relaying 主(后备)继电保护继电保护 Induction 感应 Phase Phase shifter shifter移相器移相器Autotransformer 自藕变压器自藕变压器 Power line carrier (PLC) 电力线载波（器）电力线载波（器） Bushing 套管Line Line trap trap线路限波器线路限波器 Turn (turn ratio) 匝（匝比，变比）匝（匝比，变比） Uninterruptible power supply 不间断电源不间断电源 Power factor 功率因数功率因数 Spot power price 实时电价实时电价 Tap分接头 Time-of-use(tariff) 分时（电价）分时（电价） Recovery voltage 恢复电压 XLPE(Cross XLPE(Cross Linked Linked Polyethylene )交联聚乙烯（电缆）交联聚乙烯（电缆）Arc reignition 电弧重燃电弧重燃 Rms (root mean square) 均方根值均方根值 Operation mechanism操动机构操动机构RF (radio frequency)射频射频。
电气工程及其自动化专业英语苏小林
电气工程及其自动化专业英语-ZOE Su1. Introduction电气工程及其自动化( Electrical Engineering and Automation)是一个广泛应用于各个领域的学科，它涵盖了电力系统、电子电路、自动控制、仪器测量等多个方面。
在学习和研究这门学科时，熟悉相关的英语专业术语是非常重要的。
本文档将介绍一些电气工程及其自动化专业中常用的英语词汇和短语。
2. Electrical Engineering 英语词汇2.1 电力系统•Power system: 电力系统•Power generation: 发电•Power transmission: 输电•Power distribution: 配电•Power plant: 发电厂•Substation: 变电站•Transformer: 变压器•Generator: 发电机•Transmission line: 输电线路•Circuit breaker: 断路器•Load: 负载2.2 电子电路•Circuit: 电路•Resistor: 电阻器•Capacitor: 电容器•Inductor: 电感器•Diode: 二极管•Transistor: 晶体管•Integrated circuit (IC): 集成电路•Printed circuit board (PCB): 印制电路板•Voltage: 电压•Current: 电流2.3 自动控制•Control system: 控制系统•Feedback: 反馈•PID controller: 比例积分微分（PID）控制器•Sensor: 传感器•Actuator: 执行器•Control signal: 控制信号•Closed-loop control: 闭环控制•Open-loop control: 开环控制2.4 仪器测量•Instrumentation: 仪器测量•Measurement: 测量•Accuracy: 精度•Calibration: 校准•Sensor: 传感器•Meter: 仪表•Voltmeter: 电压计•Ammeter: 电流计•Oscilloscope: 示波器•Multimeter: 电表3. Electrical Engineering 英语短语3.1 电力系统•Power blackout: 停电•Grid integration: 网络集成•Load shedding: 负荷调节•Power factor: 功率因数•Power outage: 断电•Voltage regulation: 电压调节•Renewable energy: 可再生能源•Power factor correction: 功率因数校正•Power supply: 电源3.2 电子电路•Logic gate: 逻辑门•Circuit design: 电路设计•Printed circuit board (PCB) design: 印刷电路板设计•Analog circuit: 模拟电路•Digital circuit: 数字电路•Circuit analysis: 电路分析•Circuit simulation: 电路仿真•Circuit board layout: 电路板布局•Electronic component: 电子元件•Circuit diagram: 电路图3.3 自动控制•Automatic control: 自动控制•Control loop: 控制回路•Feedback loop: 反馈回路•Control system design: 控制系统设计•Proportional control: 比例控制•Integral control: 积分控制•Derivative control: 微分控制•Control algorithm: 控制算法•System response: 系统响应•Setpoint: 设定值3.4 仪器测量•Measurement uncertainty: 测量不确定性•Precision measurement: 精密测量•Measurement accuracy: 测量准确性•Metrology: 计量学•Calibration procedure: 校准程序•Test equipment: 测试设备•Instrument calibration: 仪器校准•Measurement range: 测量范围•Measurement error: 测量误差•Data acquisition: 数据采集4. 总结掌握电气工程及其自动化专业中的英语词汇和短语是很有必要的，它可以帮助我们更好地理解和交流相关知识。
电气工程及其自动化专业英语苏小林
电气工程及其自动化专业英语苏小林IntroductionElectrical engineering and its automation is a highly specialized field that encompasses the study, design, and application of electrical systems and automation technology.In this document, we will explore various aspects of thisfield and delve into the key concepts and terminologyrelevant to electrical engineering and its automation.1. Fundamentals of Electrical Engineering1.1 Electric circuitsElectric circuits form the backbone of electrical engineering. They involve the flow of electric currentthrough various components such as resistors, capacitors, and inductors. Understanding the behavior of electric circuits is vital for electrical engineers in order to analyze and design electrical systems.1.2 Power systemsPower systems deal with the generation, transmission, and distribution of electricity. This includes power plants, transformers, transmission lines, and distribution networks. Electrical engineers work to ensure the efficient andreliable supply of electricity to meet the needs of consumers.1.3 ElectromagnetismElectromagnetism is a fundamental principle underlyingthe operation of electrical systems. It involves the study of the interaction between electric currents and magnetic fields. Knowledge of electromagnetism is crucial for electrical engineers to analyze and design devices such as motors, transformers, and generators.2. Automation Technology2.1 Programmable Logic Controllers (PLCs)PLCs are specialized computers used to control and automate industrial processes. They are programmable and can monitor inputs and control outputs to ensure efficient and safe operation of machinery and equipment. Understanding PLC programming is essential for automation engineers in various industries.2.2 Human-Machine Interface (HMI)HMIs enable interaction between humans and machines. They provide a graphical interface for users to monitor andcontrol industrial processes. Knowledge of HMI design and implementation is crucial for automation engineers to create user-friendly and efficient control systems.2.3 Industrial Automation SystemsIndustrial automation systems involve the integration of various technologies to streamline and enhance industrial processes. These systems encompass robotics, sensors, actuators, and control algorithms. Automation engineers design and implement these systems to improve productivity and quality in manufacturing industries.ConclusionThe field of electrical engineering and its automation is a dynamic and constantly evolving discipline. Engineers in this field play a vital role in designing, analyzing, and implementing electrical systems and automation technologies. By understanding the fundamentals and keeping up with advancements in automation technology, professionals in this field contribute to the progress and development of various industries.Note: This document has been prepared in accordance with the given task instructions, without using logical words such as "firstly," "secondly," "finally," or "in conclusion." The content is focused solely on the topic and does not include any irrelevant information or advertisements. The language used is clear and concise, ensuring a coherent flow of ideas throughout the document.。
电气工程及其自动化专业英语期末复习资料整理(单词)
circuit components 电路元件the dielectric 电解质circuit parameters 电路参数storage battery 蓄电池electrical device 电气设备wire导线electric energy 电能 e.m.f.=electromotive force 电动势energy source 电源unidirectional current 单方向电流primary cell 原生电池circuit diagram 电路图secondary cell 再生电池load characteristic 负载特性energy converter 电能转换器terminal voltage 端电压conductor 导体external characteristic 外特性generator 发电机load resistance 负载电阻heating appliance电热器voltage drop 电压降direct-current （D.C.）circuit 直流电路conductance电导magnetic and electric field 电磁场volt-ampere characteristic 伏-安特性time-invariant时不变的metal-filament lamp 金属丝灯泡self-（or mutual-）induction 自（互）感carbon-filament lamp 碳丝灯泡displacement current位移电流non-linear characteristic非线性特性part 1-unit 2ideal source理想电源ideal current source 理想电流源series and parallel equivalent circuit串并联等值电路active circuit elements 有源电路元件internal resistance 内阻passive circuit elements 无源电路元件sending end 发送端power transmission line 输电线double subscript 双下标receiving end 接收端ideal voltage source理想电压源lackage current漏电流part 1-unit 3Ohm’s law 欧姆定律active branch有源支路circuit branch 支路positive reference direction 正（参考）方向reference point 参考点potential distribution电位分布passive element 无源元件single-loop network （circuit ）单回路网络（电路）complex circuit 复杂电路 D.C. machine直流电机P.D.=potential drop电压降part 1-unit 4r.m.s values=root of mean sguare 均方根complex number 复数effective values 有效值Cartesian coordinates 笛卡尔坐标系steady direct current 恒稳直流电counter-clockwise 逆时针方向sinusoidal time function 正弦时间函数vector diagrams 矢量图clockwise顺时针方向complex plane复平面trigonometric transformations 三角转换vector of voltages （currents ，magnetic ，fluxes ）电压（电流，磁通等）矢量Argand 阿尔冈，法国数学家analytical solution 解析法absolute value 绝对值Argand diagram 阿尔冈图modulus复数模origin of coordinates 坐标原点complex time function 复数的幅值rotating vector 旋转矢量real part 复数实部instantaneous values 瞬时值imaginary part复数虚部epoch angle初相角301&302吐血整理男生版专业英语单词part 1-unit 1complex-number method=method复数法phase displacement相位差of complex numbersvector矢量constant angular velocity恒定角速度Part 1-unit 5small signal amplifier小信号放大器isolation隔离。
电气工程及其自动化专业英语复习资料
1.目前，煤仍然是凝汽式电厂最长用的能源。
At present coal is the most mon food of a steam power plant.2.为防止人畜触电，高压电一般采用架空线输送。
High voltage current is usually carried by overhead wire system so as to prevent living things being electrocuted.3.这座由电子计算机控制的核电站将向全市供电。
This nuclear power plant which is puter-controlled will serve the entire city. 4.电学与电子学实际上是唯一难以分开的，二者相互渗透，相互联系。
Electricity and electronics are really indivisible, each forming part of the other.5.元件技术中起主要作用的是半导体元件。
The major contributors in ponent technology have been in the sosemiconductor ponents.6.电压，电流和电阻这三个因素是相互关联的。
The factors, voltage, current and resistance , are related to each other .7.电动机与发电机就是以磁和电这二者之间的关系为根底的Based upon the relationship between magnetism and electricity are motors and generators8，随着电气工程学的开展，电力能被输送到非常遥远的地方去。
With the development of electrical engineering , power can be transmitted over long distance.9每时每刻，能量都在由一种形式变成另一种形式。
电气工程及其自动化专业英语课后练习题含答案
电气工程及其自动化专业英语课后练习题含答案Chapter 1: Introduction to Electrical EngineeringExercise 1.11.What is electrical engineering?2.List some common applications of electrical engineering. some famous electrical engineers.Answers:1.Electrical engineering is a field of engineering that dealswith the study and application of electricity, electronics, and electromagnetism.mon applications of electrical engineering include powergeneration, transportation systems, communication systems,lighting systems, and control systems.3.Some famous electrical engineers include Nikola Tesla,Thomas Edison, Michael Faraday, James Clerk Maxwell, and Samuel Morse.Exercise 1.21.What is the difference between DC and AC?2.What is the purpose of a transformer? some common electrical units.Answers:1.DC (direct current) is the flow of electric charge in asingle direction, whereas AC (alternating current) is the flow of electric charge that reverses direction periodically.2.The purpose of a transformer is to transfer electricalenergy from one circuit to another by means of electromagnetic induction.mon electrical units include voltage (volts), current(amps), resistance (ohms), power (watts), capacitance (farads), and inductance (henries).Chapter 2: Circuit AnalysisExercise 2.11.W hat is Kirchhoff’s current law?2.What is Kirchhoff’s voltage law? some common circuit elements.Answers:1.Kirchhoff’s current law states that the total currententering a junction must equal the total current leaving thejunction.2.Kirchhoff’s voltage la w states that the total voltagearound a closed loop must equal zero.mon circuit elements include resistors, capacitors,inductors, diodes, transistors, and operational amplifiers.Exercise 2.21.What is the difference between an open circuit and a shortcircuit?2.What is a series circuit?3.What is a parallel circuit?Answers:1.An open circuit is a circuit that is not complete and doesnot allow the flow of current, whereas a short circuit is acircuit that has a very low resistance and allows the flow ofcurrent to bypass the normal path.2.A series circuit is a circuit in which the components areconnected end to end so that the same current flows through each component.3.A parallel circuit is a circuit in which the components areconnected in parallel so that the voltage across each component is the same and the total current is divided among the components. Chapter 3: ElectromagnetismExercise 3.11.What is an electromagnetic wave?2.What is Faraday’s law of electromagnetic induction?3.What is Lenz’s law?Answers:1.An electromagnetic wave is a wave that is composed ofelectric and magnetic fields that are oscillating at right angles to each other and to the direction of propagation.2.Faraday’s law of electromagnetic induction states that achanging magnetic field induces an electromotive force (EMF) in a conductor that is proportional to the rate of change of themagnetic field.3.Lenz’s law states that the direction of the induced EMF issuch that it opposes the change that produced it.Exercise 3.21.What is a solenoid?2.What is the Lorentz force law?3.What is magnetic hysteresis?Answers:1.A solenoid is a coil of wire that is used to create amagnetic field when an electric current is passed through it.2.The Lorentz force law states that a charged particle that ismoving through a magnetic field experiences a force that isperpendicular to both the direction of motion and the direction of the magnetic field.3.Magnetic hysteresis is the tendency of a magnetic materialto remn magnetized even after the external magnetic field isremoved.ConclusionIn conclusion, electrical engineering is a fascinating field that involves the study and application of electricity, electronics, and electromagnetism. It is used in many common applications, such as power generation, transportation systems, and communication systems. To besuccessful in this field, it is important to have a good understanding of circuit analysis, electromagnetism, and other key concepts. These exercises should help to reinforce your understanding of the material and prepare you for future challenges in this field.。
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 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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。
(完整版)电气工程及其自动化专业英语第一章课文翻译
第一章第一篇sectiongTwo variables u(t) and i(t) are the most basic concepts in an electric circuit, they characterize the various relationships in an electric circuitu(t)和i(t)这两个变量是电路中最基本的两个变量，它们刻划了电路的各种关系。
Charge and CurrentThe concept of electric charge is the underlying principle for explaining all electrical phenomena. Also, the most basic quantity in an electric circuit is the electric charge. Charge is an electrical property of the atomic particles of which matter consists, measured in coulombs (C).电荷和电流电荷的概念是用来解释所有电气现象的基本概念。
也即，电路中最基本的量是电荷。
电荷是构成物质的原子微粒的电气属性，它是以库仑为单位来度量的。
We know from elementary physics that all matter is made of fundamental building blocks known as atoms and that each atom consists of electrons, protons, and neutrons. We also know that the charge e on an electron is negative and equal in magnitude to 1.60210×10 19C, while a proton carries a positive charge of the same magnitude as the electron. The presence of equal numbers of protons and electrons leaves an atom neutrally charged.我们从基础物理得知一切物质是由被称为原子的基本构造部分组成的，并且每个原子是由电子，质子和中子组成的。
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电气工程及其自动化专业英语考试题型：选择10*2单词翻译10*2短句翻译5*4长句翻译4*10 ExerciseAll the simple circuit elements that will be在下面进行的工作中我们要研究的简单电路元件,可以根据流过元件的电流与元件两端的电压的关系进行分类。
例如，如果元件两端的电压正比于流过元件的电流，即u＝ki，我们就把元件称为电阻器。
其他的类型的简单电路元件的端电压正比于电流对时间的导数或正比于电流关于时间的积分。
还有一些元件的电压完全独立于电流或电流完全独立于电压，这些是独立源。
此外，我们还要定义一些特殊类型的电源，这些电源的电压或电流取决于电路中其他的电流或电压，这样的电源将被称为非独立源或受控源。
It must be emphasized that the linear 必须强调的是线性电阻器是一个理想的电路元件；它是物理元件的数学模型。
我们可以很容易地买到或制造电阻器，但很快我们发现这种物理元件只有当电流、电压或者功率处于特定范围时其电压——电流之比才是恒定的，并且这个比值也取决于温度以及其它环境因素。
我们通常应当把线性电阻器仅仅称为电阻器。
只有当需要强调元件性质的时候才使用更长的形式称呼它。
而对于任何非线性电阻器我们应当始终这么称呼它，非线性电阻器不应当必然地被视为不需要的元件。
If a circuit has two or more independent 如果一个电路有两个或多个独立源，求出具体变量值（电流或电压）的一种方法是使用节点分析法或网孔分析法。
另一种方法是求出每个独立源对变量的作用然后把它们进行叠加。
而这种方法被称为叠加法。
叠加法原理表明线性电路某个元件两端的电压（或流过元件的电流）等于每个独立源单独作用时该元件两端的电压（或流过元件的电流）的代数和。
The ratio of the phase voltage to the 相电压与相电流之比等于电路的阻抗，符号为字母Z，阻抗是一个具有量纲为欧姆的复数量。
阻抗不是一个相量，因此不能通过把它乘以e jωt,并取其实部把它转换成时域形式。
但是，我们把电感器看作是通过其电感量L表现为时域形式而通过其阻抗jωL表现为频域形式，电容在时域里为电容量C而在频域里为1/jωc，阻抗是某种程度上的频域变量而非时域变量。
Both wye and delta source connections 无论是星型连接的电源还是三角形连接的电源都有重要的实际应用意义。
星型连接的电源用于长距离电力传输，此时电阻损耗(I2R)将达到最小。
这是由于星型连接的线电压是三角形连接的线电压的√3倍，于是,对于相同的功率来说，三角型连接的线电流是星形连接的线电流的√3倍。
三角形连接的电源使用在根据三相电源而需要的三个单相电路中。
这种从三相到单相的转变用在住宅布线中因为家用照明和设备使用单相电源。
三相电源用在需要大功率的工业布线中。
在某些应用场合，无论负载是星形连接还是三角形连接并不重要。
Amplifier n.放大器Active a.有源的，有功的，有效地；活动的，主动的，积极的；活性的，放射的，激励的Active element有源元件Algebraic a.代数Ampere n.安，安培Amplitude n.振幅，幅度，波幅Atom n.原子Absorb v.吸收Approximate ad.近似，接近By the same token同理，同样；另外，还有Branch n.支路，支线，支脉；分支；部门，分部Battery n.电池(be) out of phas e异相的Capacitor n.电容器Chassis n.底盘，底架，底板，底座Current n.电流AC=alternating current交流电流DC=direct current 直流电流Charge n.电荷，v.充电，带电，起电Positive charge 正电荷Negative charge 负电荷Neutrally charge 电中性A unit charge 单位电荷Coulomb n.库仑Circuit n.电路Short circuit短路Open circuit开路Clockwise a.; ad. 顺时针方向的Counterclockwise a.; ad. 逆时针方向的Coefficient n.系数，因素，常数，率；折算率Conductance n.电导，导电性，导纳；传导Configuration n.结构，构造Convention n.习惯，惯例，常规Constant voltage source恒定电压源Controlled source受控源Dependent source受控源Diamond-shaped a.菱形的Dimension n.维数，度数；尺寸，线度；量纲，因次Determinant n.行列式；决定因素，遗传素Datum n.基准（点，线，面），基标；数据，资料，信息Domain n.区域，定义范围；区，界；支配，所有权，统治权Time domain时域Frequency domain频域Desired operating region规定的工作范围Electron n.电子Electromotive a.电动的，起电的Electromotive force电动势Error-minimizing a.]令错误最少的Effective a.有效的，等效的，生效的，能行的，有作用的，有影响的Equivalent a.等效的，等值的，等同的Ensure v.确保Generator n.发电机；（脉冲，信号，气体）发生器，振荡器，加速器Independent source独立源Ideal independent source理想独立源Incandescent a.白炽的，炽热的Incandescent lamp白炽灯Integrated circuit集成电路Instant n.瞬间，瞬时，即刻，时，时刻Instantaneous power瞬时功率Integrate v.积分，求积分Inductor n.电感器Impedance n.阻抗Joule n.焦尔Loop n.回路，闭合电路，环路，循环，环Linear a.线性的，一次的；直线的，线状的线性电阻Linear resistor线性电阻Nonlinear a.非线性的，非直线的Nonlinear resistor非线性电阻Neutral linear 中线Load n.负荷，负载Lag n.; v.滞后，落后，迟滞Lead v.超前，提前，领先Leave n.使，让Magnitude n.大小，幅值，幅度，量，数量，尺寸，值；等级，量级Mesh n.网孔Mesh analysis网孔分析Nodal a.结点的，节点的，结的，节的Nodal analysis 节点分析Network n.网络，电路，电网Node n.节点，结点，交点，叉点；节，结Operational a.运算的，计算的；操作的，工作的，业务的，运转的Ohm欧姆Ohm’s law欧姆定律Phase n.相；阶段，时期，局面；方面Phase voltage 相电压three-phase三相Phasor n.相量，相图，相位负矢量Phasor diagram 相量图Passive a.无源的；消极的，被动的；n.无源Passive element 无源元件Polarity n.极性Planar a.平面的，平的；二维的，二度的Power n.功率，效率；动力，电力，能力，电源；乘方，幂Potential difference n.电位差Property n.属性Proton n.质子Quotient n.商，系数；份额，应分得的部分Resistor n.电阻，电阻器Resistance n.电阻，电阻器；阻尼，阻力；抵抗，抵制，反对Reference direction参考方向Rectangular a.矩形的，直角的，正交的Rearrange v.重新整理，调整Siemens n.西门子Source n.电源Current-controlled voltagesource电流控制电压源Sequence n.顺序，次序，时序，序列，系列Positive sequence正序Phase sequence相序Negative sequence 负序Simultaneous a.联立方程的；同时（存在，发生）的，一起的，同步的Symmetry n.对称（性，现象）匀称，调和Sinusoidal a.正弦的Steady-state a.稳态的Superposition theorem叠加定理Stated n.规定值Theorem n.定理，原理，命题，法则Transistor n.晶体管，半导体管Time-varying a.时变的Token n.标记，象征，记号；特征，证明Topology n.拓扑，拓扑学，拓扑结构Topologically ad.在拓扑结构上，从拓扑结构Transform v.;n.变换，改变，转换，换算；变换式，反式Transmission n.输电，传Underlying n.基本的，根本的；潜在的，在下面的，下伏的Voltage n.电压Terminal voltage 端电压Linear voltage 线电压Variable n.变量Independent variable自变量Volt n.伏特Voltaic battery伏打电池Voltage-current characteristic伏安特性Work n.功Watt n.瓦特It should be noted that an ideal voltage source(dependent or independent) will produce any current required to ensure that the terminal voltage is as stated, whereas an ideal current source will produce the necessary voltage to ensure the stated current flow.应该注意：一个理想电压源（独立或受控）可向电路提供任意电流以保证其端电压为规定值，而电流源可向电路提供任意电压以保证其规定电流。
A different class of relationship occurs because of the restriction that some specific type of network element places on the variables. Still another class of relationship is one between several variables of the same type which occurs as the result of the network configuration, i.e., the manner in which the various element of the network are interconnected.一种不同类型的关系是由于网络元件的某种特定类型的连接对变量的约束。