英语PPT 有关电力工程的介绍
电气工程专业英语课件绪论
Electrical field theory
The study of the interactions between electric and magnetic fields It is based on Maxwell's equations, which describes how electric and magnetic fields are generated and propagated through space
Electronic devices
A three terminal electronic device that can simplify or switch electronic signals It insists of an emitter, base, and collector
Transformer
01
Introduction to Electrical Engineering
Electrical engineering is the branch of engineering that deals with the design, development, installation, operation, and maintenance of electrical systems It encompasses a wide range of fields, including power generation, transmission, and distribution; Electronics and communication systems; And the control and automation of industrial processes and systems
电力专业英语第十二讲PPT课件
Operation
Operation of a transformer is based on the fundamental characteristics of ac electrical energy. A series of causes and effects are involved, as follows:
lamination [ˌlæmɪ'neɪʃən] n. 层压，
hollow [ˈhɒləʊ] a.
; 空腹的;
pancake [ˈpænkeɪk]n. 薄饼 vt.
使平坠著陆; 使平展;
strip [strɪp]n. 去，剥去; 剥夺
; 带状地带vi. 剥光; 表演脱衣舞; 剥除;vt. 除
If the conductor is wound into a coil of many turns of wire如果导体被绕成一个多匝的线圈
the magnetic fields around the individual turns are added together to form a single, concentrated field around the coil. 单匝绕线周围的磁场被叠加在一起形 成一个在线圈周围的集中磁场。
be equal to
squared-off figure 8 8 squared正方形的；带有方格图案的;
电力系统英语课件PPT
目录
contents
Introduction to Power SystemBasic concepts of power systemPower system equipmentPower System Operation and ControlEnvironmental Protection and Energy Conservation in Power SystemsFuture Development Prospects for Power Systems
01
Introduction to Power System
Summary
Power system refers to the complete set of equipment and facilities that generate, transmit, distribute, and utilize electrical energy
Long term stability
Refers to the ability of the power system to maintain stability over a longer period of time after a disturbance, so as during restoration of service after a fault
Usage
The alternative is used in power plants, automobiles, aircraft, and other applications where it is necessary to convert mechanical energy into electrical energy
电力专业英语介绍
国调
Branch-grid level
网调
Provincial level
省调
Regional level
地调
County level
县调
2018/10/20
HUI REN @ NCEPU
45-17
National wide grid dispatching Inter-regional connection above 500 Kv 500 Kv substation 500(330)Kv transmission lines 220 Kv key substation 220 Kv transmission lines
HUI REN @ NCEPU
45-15
2018/10/20
HUI REN @ NCEPU
45-16
Power Dispatching
• Dispatching regulation on power system: issued in 1993 by State Council. • Unified dispatching and hierarchical management: five levels.
Provincial level
Medium and small scale plants
220 Kv substation 110Kv, 35 Kv substation 110Kv transmission lines and below
regional level
Distribution center High voltage customers
电力系统调度
2018/10/20
电厂专业英语VPPT课件
常用介质
• water 水 • feedwater 给水 • steam 蒸汽 • oil 油 • air 空气 • flue gas 烟气
常用名词
• test 测试 • system 系统 • inlet 进口 • outlet 出口 • input＝INP 输入 • output 输出 • maximum 最大 • minimum 最小 • blow down 排污
流
• DSL=diesel 柴油 • power=PWR 功率 • power factor 功率因数
• rotor 转子 • stator 定子 • distribution 馈线 • rectifier 整流器
• AVR=automatic voltage regulator 自动电压调节器 • inspection=supervise=monitor 监测
电厂专业英语
—————杨诗伟，王 诗莹
三大主机
• 锅炉 boiler • 汽机 turbine • 发电机 generator
锅炉相关词汇
• boiler 锅炉 • water wall 水冷壁 • superheater 过热器 • reheater 再热器
O soot blower 吹灰器 O burner 燃烧器 O coal 煤 O fuel 燃料
• trip 跳闸 • act 动作 • discharge 排放 • heat 加热 • standby＝S/BY
备用
• operate 操作 • assembly 组装 • reset＝RST 复
常用形容词
• high/low 高的/低的 • on/off 开/关 • normal/abnormal＝ABN 正常的/异常的 • large/small 大的/小的 • main 主要的 • safe 安全的 • emergent 紧急的 • auxiliary 辅助的 • average 平均的 • dependable 可靠的 • cycled=circulating＝CYC 循环的 • cooling=CLG 冷却
电气工程英语
电流current电压voltage功率power频率frequency电阻resistance电容capacitance电抗reactance电阻率resistivity阻抗impedance相,相位phase有功功率active power无功功率reactive power视在功率apparent power 装设功率installed power 安培ampere (A) 伏volt (V)欧姆ohm赫兹hertz (HZ)瓦watt (W)供电局power supply authority电力公司power supply company发电厂power plant变电所substation配电站distribution substation配变电站transformer station终端变电站terminal substation车间变电站substation in workshop室内变电站indoor substation自动变电站automatic substation成套变电站unit substation 高压室H.T room低压室L.T room变压器室transformer room 变压器平台transformer platform 柴油发电机室dieselgenerator room控制室control room蓄电池室battery room维修间maintenance room值班室duty room休息室rest room电容器室condenser room充电室battery-- charging room室外储油罐outdoor oil tank地下油罐underground oil tank日用油箱day tank负荷load一类负荷first-class load 二类负荷second-class load 三类负荷third-class load 照明负荷lighting load动力负荷power load电阻负荷resistance load 电抗负荷reactive load冲击负荷shock load空载non-load有载on-load满载full-load过载over-load不平衡负荷unbalanced load平衡负荷balanced load额定负载norminal load负荷计算load circulation 功率因数power factor同时使用系数diversity factor需要系数法demand factor method利用系数法utilization factor method二项式法binomial method 无功功率补偿reactive power compensation自然功率因数natural power factor补偿后功率因数power factor after compensating 高压补偿compensating in H.T side低压补偿compensating in L.T side负荷率load rate补偿容量compensating capacity设备装设容量installedcapacity备用容量standby capacity 额定容量rated capacity视在容量apparent capacity 计算容量calculated capacity短路容量short circuit capacity负荷计算表loadcalculation table电压voltage高压high tension (H.T)低压low tension (L.T)冲击电压impulse voltage 临界电压critical voltage 残余电压residual voltage 击穿电压breakdownvoltage供电电压supply voltage照明电压lighting voltage 工作电压working voltage 额定电压rated voltage相电压phase voltage线电压line voltage过压over--voltage欠压under--voltage电压降voltage drop电压损失voltage loss电压偏移voltage deviation 电压波动voltage variation 电压标准voltage standard 电压等级voltage class电压调整率voltage regulation rate电流current交流alternating current (A.C)直流direct current (D.C)短路电流short--circuit短路点short circuit point 三相短路电流three-phase short-circuit current两相短路电流two-phaseshort-circuit current单相短路电流single--phase short-circuit current短路电阻short-circuit resistance短路电压short-circuit voltage短路电抗short-circuit reactance短路容量short-circuit capacity短路稳定性short-circuit stability短路冲击电流short-circuit impulse current热效应thermal effect稳定短路电流steady state short-circuit current切断电流cut-off current 整定电流setting current 动作电流action current额定电流rated current, norminal current熔体电流melt current熔丝电流fuse current故障电流fault current极限电流limiting current过电流over--current有效值virtual value,effective value电源,供电方式power andsupply system工作电源working powersource操作电源operating power source备用电源standby source 应急电源emergency source常用电源normal source供电电压supply voltage双回路供电two-feeder supply两个独立电源two independent power supply 放射式radial system 单回路放射式one-circuit radial system双回路放射式two-circuit radial system有公用备用干线的放射式radial system with public standby main line树干式trunk system单回路树干式one-circuit trunk system单侧供电双回路树干式two-circuit trunk system with one-side power supply 双侧供电单回路树干式one-circuit trunk system with two-side power supply 双侧供电双回路树干式two-circuit trunk system with two-side power supply 环式ring system链式chain system变压器—干线式transformer-main line systemTN系统TN system TN—S系统TN-S system TN—C系统TN-C system TN—C—S系统TN-C-S systemTT系统TT system单相二线制1-phase 2-wire system三相四线制3-phase 4-wire system 三相五线制3-phase 5-wiresystem保护线protective earth (PE)中性线(N线)neutral分列运行independentoperation并列运行parallel operation 无载运行non-loadoperation变压器transformer三相变压器three-phase transformer油浸变压器oil-immersed transformer自冷变压器self-cooling transformer铜线变压器copper-coil transformer铝线变压器aluminum-coil transformer有载调压的变压器on-load regulating transformer可调变压器variable transformer全封闭的变压器fully-enclosed transformer 干式变压器drytransformer单相变压器single-phase transformer防雷变压器lightning-proof transformer环氧浇注变压器epoxy-resin filled transformer电力变压器power transformer低损耗变压器low loss transformer照明变压器lighting transformer控制变压器control transformer三相油浸自冷式铝线低损耗有调压电力变压器3-phase oil-immersedself-cooling and low-loss aluminum-coil power transformer变压器系数transformer factor调压器voltage regulator 稳压器stabilizer减压器reducer整流器rectifier限流器current limiter不停电电源uninterrupted power supply (UPS)变阻器rheostat电阻器resister自动功率调整器automatic power regulator电压互感器voltage transformer电流互感器current transformer降压变压器step-down transformer自动调压器automatic regulator高频变压器high-frequency transformer降压器step-downtransformer升压器step-up transformer 编号code型号type用途function二次接线图号secondary wiring drawing No.外形尺寸overall dimension一次主要设备preliminary main equipment辅助设备auxiliary equipment进线incoming line出线outgoing line规格specification数量quantity高压电器H.T equipment高压配电柜H.Tdistribution cabinet高压开关柜H.Tswitchgear手车式高压开关柜draw—out type H.T switchgear户内交流金属铠装移动式开关柜indoor A.C armoredmovable switchgear高压无功功率补偿装置H.T reactive power compensator高压静电电容器柜H.T electrostatic capacitorcabinet大功率并联电容无功功率补偿high power parallel capacitor reactive power compensating高压断路器H.T circuit breaker少油断路器minimum oilcircuit breaker油断路器oil circuit breaker 真空断路器vacuum circuit breaker空气断路器air circuit breaker六氟化硫断路器sulfur hexaflouride breaker (SF6breaker)户内式indoor (type)户外式outdoor (type)电磁式electromagnetic产气式aerogenic高压接触器H.T contactor高压真空接触器H.Tvacuum contactor高压负荷开关H.T load switch高压隔离开关H.T isolator 操动机构control mechanism手动操动机构hand control mechanism电磁操动机构magnetic control mechanism弹簧储能操动机构(energy storing) spring operating mechanism电动操动机构motor drived operating mechanism 高压熔断器H.T fuse 跌落式熔断器drop—out fuse高压电抗器H.T reactor串联电抗器series reactor 高压互感器H.T transformer移相电容器phase—shift capacitor低压配电装置L.T distributor device低压配电屏L.T distribution panel低压无功功率补偿装置L.T reactive power compensator抽屉式低压配电屏drawable L.T distribution panel电动机控制中心motor control center (MCC)固定式低压配电屏fixed L.T distribution panel低压静电电容器屏L.T electrostatic capacitor panel 出线屏outgoing panel进线屏incoming panel联络屏connection panel计量屏measurement panel 动力馈电屏power feeder panel 照明馈电屏lighting feederpanel控制柜control cabinet配电箱distribution cabinet总配电箱generaldistribution box动力配电箱power distribution box照明配电箱lighting distribution box插座箱socket box电度表箱kilowatt-hour meter box非标准控制箱,柜,台non-standard control box, cabinet, desk电源切换箱powerchange-over box开关switch总开关master switch主开关main switch刀开关knife switch负荷开关load switch开启式开关open switch封闭式开关closed switch组合开关combinationswitch自动空气断路器automaticair breaker框架式skeleton type塑料外壳式断路器moulded case circuit breaker (MCCB)行程开关position switch微动开关microswitch万能转换开关universalswitch分级转换开关steppingswitch换相开关phase converter 防爆开关explosion proof switch漏电保护开关leakage protection switch三向开关three—way switch轻载开关underload switch 压力开关pressure switch 单刀双掷开关single-pole double throw switch接触器contactor交流接触器 A.C contactor 直流接触器 D.C contactor 消弧接触器arc extinction contactor起动器starter电磁起动器electromagnetic starter 磁力起动器magnetic starter自动空气式星三角起动器automatic air star-delta starter减压起动器voltage reducing starter起动控制箱starting controler低压熔断器L.T fuse螺旋式熔断器screw fuse 快速熔断器quick fuse瓷插式熔断器plug-in fuse 继电器relay电流继电器current relay电压继电器voltage relay 过电流继电器over-current relay信号继电器signal relay 时间继电器timing relay 中间继电器intermediate relay漏电继电器leakage relay 欠压继电器under-voltage relay绝缘监视继合器insulation detection relay交流电度表 A.C kilowatt hour meter单相电度表single-phase kilowatt hour meter三相电度表three-phasekilowatt hour meter无功电度表reactivekilovolt ampere-hour meter 无功功率表reactive power meter有功功率表active power meter电流表ammeter, current meter电压表voltmeter万用电表universal meter绝缘检查电压表insulation check voltage meter功率因数表power factor meter多相电度表polyphasemeter电力定量器电机electrical machine 同步的synchronous异步的asynchronous电动机motor发电机generator转子rotor定子stator柴油发电机(组)diesel generator (set)电动发电机(组)motor generator (set)感应电动机induction motor鼠笼式感应电动机squirrel cage induction motor绕线式电动机wound-rotorinduction motor滑环式电动机slip-ringmotor起动电动机starting motor;actuating motor自激电动机motor with selfexcitation同步器synchronizer励磁机exciter伺服电动机service motor插接装置plug device插头plug螺口插座screw socket卡口插座bayonet socket 插座socket; outlet 单相二极插头1-phase 2-pole plug三相插头3-phase plug单相插座single phase socket三相四极插座3-phase 4-pole socket接线柱binding post接头adapter接线板terminal block接线盒terminal box; junction box接线箱connection box; junction box线路及安装line and installation线,线路line and circuit 高压线路H.T line输电线路transmission line 电源进线incoming line出线outgoing line馈线feeder供电干线main supply line; supply main低压线路L.T line电力干线main power line 照明干线main lighting line 支线branch line电力支线power branch line照明支线lighting branch line封闭式母线enclosed bus--bar接插式母线plug-in bus--bar接地母线earth line中性线,零线neutral应急照明线emergency lighting line联络线liaison line 滑触线trolley line 埋地线underground line明线open wire暗线concealed wire明线布线open wiring暗线布线concealed wiring通信线路communicationline架空线路overhead line架空干线overhead main电缆线路cable line电缆沟cable trench电缆桥架cable bridge电缆托架cable tray电缆槽cable duct墙式电缆槽wall duct导线conductor and cable 裸导线bare conductor铝线aluminum conductor 铜芯线copper core cable 电缆cable馈电电缆feed cable电力电缆power cable照明电缆lighting cable 通信电缆communication cable控制电缆control cable 信号电缆signal cable实心电缆solid cable同轴电缆coaxial cable单芯电缆single-core cable 双股电缆paired cable高压电缆H.T cable低压电缆L.T cable绝缘电缆insulated cable 屏蔽电缆shielded cable护套电缆sheathed cable铜芯电缆copper core cable 铠装电缆armored cable铅包电缆lead-covered cable油浸电缆oil-immersed cable漆包电缆lacquer-cover cable纸绝缘电缆paper-insulated cable 橡皮绝缘电缆rubber-insulated cable 塑料绝缘电缆plastic-insulate cable 绕扎电缆wrapped cable 聚乙烯polyethylene, polythene聚氯乙烯绝缘电缆polyvinylchloride (PVC) cable交联聚乙烯绝缘电缆x-linked polyethylene (XLPE) cable乙烯绝缘软性电缆vinyl cabtyre cable阻燃铜芯塑料绝缘电线flame retardant copper core plastic insulated wire交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆x—linked polythene insulated steel tape armored PVC sheathed power cable韧性橡皮绝缘电缆tough-rubber sheathed cable 地下电缆ground cable架空电缆overhead cable软电缆flexible cable电缆隧道cable tunnel电缆隧道口cable tunnelexit电缆井cable pit电缆人孔cable manhole电缆夹cable cleat电缆分线箱cable junction box电缆箱,分线盒cable cabinet电缆接线头cable plug电缆终端盒,电缆接头电缆吊架,电缆吊杆cable hanger电缆桥架cable bridge埋深buried depth安装installation安装高度installation height电杆长度pole length线间距离distance between lines跨度span弧垂sag交叉点crossing point架空引出over-head leading out落地安装installed on ground嵌装在墙上built in wall 挂墙安装suspended on wall明装surface mounted嵌装flush mounted暗装conceal mounted架空引入over-head leading-in敷设laying明敷exposed laying暗敷concealed laying埋地敷设led underground 由……引来(led) from引至(led) to直埋buried directly underground穿钢管敷设laid in steel conduit引上led-up引下led--down沿……敷设run along沿墙along wall沿梁along beam跨柱across column弯曲半径bending radius 抽头tap-off电缆终端头cabletermination joint试验,维护test, maintenance试车test run, commission 整定setting修理repair验收acceptance故障fault停电power cut, power failure校正correct停机stop定期检修periodic maintenance继电保护relaying保护protection保护配置protection disposition电流速断保护current quick-breaking protection 过电流保护over-current protection纵联差动保护tandem differential protection过载保护over-load protection距离保护distance protection功率方向保护directional power protection继电器relay逆流继电器reverse-current relay阻抗继电器impedance relay低周率继电器low frequency relay重合闸继电器reclosing relay定向继电器directional relay瞬动继电器instantaneous relay辅助继电器auxiliary relay 差周率继电器difference frequency relay极化继电器polarized relay合闸位置继电器closingposition relay整定setting整定值set value整定范围setting range时限time lag反时限inverse time定时限definite time定时反时限definite inverse time变时限dependent time死区dead zone保护范围protection range 动作action动作时间action time, actuating time动作范围action range延时delay切换switchover瞬时动作instantaneous action复位reset直流操作 D.C operation 交流操作 A.C operation 操作电压control voltage 合闸switch on跳闸trip off接通switch-in, close-up 备用电源自动投入automatic switch-on of standby power supply自动重合闸automatic reclosing脱扣线圈tripping coil 电流脱扣,串联脱扣series tripping电压脱扣,并联脱扣shunt tripping起动start停止stop按钮push button断开,切断break, cut off 直接起动direct starting 延时速断delay quick breaking保护跳闸protecting tripping防跳tripping prevent跳闸指示灯tripping indicating lamp合闸回路closing circuit 超温报警over temperature alarming防雷,接地lightning protection and earthing 雷击lightning stroke雷害lightning disturbance 雷电闪络lightning flash over雷电过电,雷涌lightning surge直击雷direct stroke侧击雷side stroke感应雷induction stroke雷暴thunderstorm雷电日thunder day雷电日数number of lightning days雷电或然率lightning probability触电electric shock静电感应electrostatic induction放电electric discharge间隙gap电火花spark电弧arc漏电leakage漏电路径leakage path避雷装置lightningprotector避雷针lightning rod, lightning conductor避雷带lightning belt避雷网lightning-protection net避雷针支架lightning rod support避雷针基础lightning rod base避雷器arrester球形避雷spherical arrester 管式避雷tubular arrester 阀式避雷器auto-valve arrester角式避雷器horn arrester多隙避雷器multigaparrester金属氧化物避雷器metal-oxide arrester铅避雷器aluminumarrester氧化膜避雷器oxide film arrester磁吹避雷器magneticblow-out arrester磁吹阀式避雷器magneticblow-out valve type arrester 防雷工程lightningprotection engineering均压网voltage balancingnet保护和接地protection and earthing保护范围protection range保护高度protection height保护半径protection radius保护角protection angle防雷分类classification of lightning protection一类防雷区first class protection接地earthing接地电阻earth resistance接地电阻表earth tester防雷接地earthing forlightning protection人工接地artificial earthing工作接地working earthing保护接地protectiveearthing保护地protective earth信号地signal earth重复接地re-earthing中性点接地neutral point earthing屏蔽接地shielding earthing接地系统earthing system 接地故障earth fault暗接地线concealed earth line暗检测点concealed check point接地装置earthing device 接地开关earthing switch 接地火花避雷器earthing arrester接地母线earth bus接地线earth conductor接地极earth electrode引下线led-down conductor 断接卡disconnector接地干线ground bus垂直接地极vertical electrode水平接地极horizontal electrode降阻剂resistance reducer 利用主筋作引下线main reinforcing bar used as down-led conductor利用铁爬梯作引下线iron ladder used as down-led conductor接地线引入处entrance of earth wire自然接地体natural grounding基础接地体foundation grounding接零保护neutral protection 保护接零protective neutralization接零干线neutral main利用电线管作零线conduit used as neutral line零线,接地线neutral line(conductor)零线,中性线neutral line (conductor)带电金属外壳current carrying metallic case 不带电金属外壳non-current carrying metallic case材料material金属metal镀锌zinc plating , galvanization镀铂platinum plating镀钠cadmium plating镀铬chromium plating镀镍nickel plating镀锡tin plating镀锌板galvanized sheet镀锌层zinc coat镀锌钢板galvanized steel plate镀锌扁钢galvanized flat steel镀锌角钢galvanized angle steel镀锌圆钢galvanized round steel镀锌钢管galvanized steel pipe镀锌槽钢galvanized channel steel硬塑料管hard plastic pipe 绝缘材料insulating materials。
电气工程专业英语课件
The principles and practices of insulation design, including creepage distances, clearance distances, and insulation coordination
Insulation materials
Over the years, electrical engineering has evolved and expanded to include new technologies and fields The incident of the transient in the 1940s and the integrated circuit in the 1950s led to the creation of the field of electronics, which has had a prospective impact on modern society
Introduction to Electrical Engineering
Electrical Engineering is the branch of engineering that deals with the study, design, development, implementation, and application of electrical systems and equipment It covers a wide range of fields, including power generation, transmission, and distribution; Electronics; Telecommunications; And control systems
电力专业英语基础.ppt
(1)技术，先进设备直接进入电站、电厂等电力生产第一
线；
专业英语表达、听说、应变能力
电力技术的飞速发展，国际间学术交流与合作不断加强；
电力工业的迅速发展，急需一大批既懂专业，又懂英语的现代
化电力科技人才。 在自己的专业领域实际运用好英语：
掌握一定的专业英语词汇、阅读技巧； 能用英语了解电力的生产过程； 熟悉电力工业常见的英语文献等
③国际学术会议 专业英语表达、听说、应变能力
二、本教材的特点
内容选材面广，编写循序渐进，
涉及：电工基础、电子技术、电力电子技术、电 机学、计算机、电力系统、继电保护、发电厂和自 动化等内容
内容编排模块化
第一章：介绍专业英语的特点，有关的特殊语法 现象和基本句型；
第二章：22个单元，每单元包括三篇阅读材料和 一篇使用英语摘录
,
autotransformer （自耦变压器） superconductivity (超导特性) 。
(变电站，变电所) ，
次技术词汇 sub-technical words 很多专业和学科所共有的词汇,不同专业和学 科往往具有不同词义
power : 幂，乘方 动力，功率，效率 电源，电力，功率，电能
dep —department
缩略词：由词组中某些词的词头字母（有时多于 一个）所组成，作为一个词按照正常的规则发音
ROM —read only memory 只读存储器 RAM —random access memory 随机（存取）储存器 Radar —radio detecting and ranging ；雷达 GIS —gas insulated station 气体绝缘变电站
(2) 学习方面
①考研考博的需要。专业英语阅读能力
电力工程PowerPointPresentation(1)
各类发电厂及其特点
各类发电厂 火电厂
水电厂 核电厂 抽水蓄能电厂
分类
凝汽式
供热式 坝式 引水式 混合式
特点 煤燃烧使锅炉中的水产生蒸汽，送到汽轮 机逐级膨胀做功，驱动发电机发电。蒸汽 在汽轮机内的压力和温度逐渐降低，最后 进入冷凝器凝结成水，送回到锅炉 简称热电厂，不仅向系统供电，而且向用 户供热
电力工程PowerPointPresentati
on(1)
2020/11/27
电力工程PowerPointPresentation(1)
前言
1. 我国电力发展的形势(依据2000年统计资料)
• 中国 2000年 全国总装机容量 3.1亿千瓦 年发电量 13400亿度 年人均用电量 1030度
• 日本 1981年 年人均生活用电量 1031度 • 美国 1981年 年人均生活用电量 3143度 • 台湾 1994年 年人均生活用电量 7350度
有功及无功功率与电源的电压及频率有关，这种 关系称为负荷特性。
• 电力负荷曲线：电力负荷随时间变化的关系，
分为日负荷曲线、周负荷曲线和年负荷曲线；在
进行电力系统规划和研究系统运行的经济效益时，
还要用到持续负荷曲线。
电力工程PowerPointPresentation(1)
日负荷曲线主要用于研究电力
中国2000年的用电水平只相当于日本1981年水平，而 只有台湾1994年的1/7。与发达国家和地区相比，缺口很大。
同发达国家和地区相比，我国的电力工业发展空间还很大。
电力工程PowerPointPresentation(1)
电力投资严重滞后直接导致了近两年的电力短缺。 因此，预计2004年电力投资增长率为35%，2010年前， 估计年平均增长率为25%左右。预测：2003年至2010年， 新增装机45217万kW,年均5490万kW,年均投资额6588亿 元，总投资额46446亿元。
电气工程专业英语课件
3
数字革命
20世纪计算机技术的快速发展催生了数字电子技术的兴起，电气工程逐渐与信息技术融合，引领 了新一轮科技革命。
电气工程中的基础概念和术语
1 电流和电压
电流是电子在导体中流动的电荷量，电压是电荷之间的电势差。电流和电压是电路中最 基本的概念。
2 电阻和电导
电阻是电流在导体中受到的阻碍，电导是电流在导体中的容易通过程度。电阻和电导是 电路中控制电流流动的要素。
3 电路和电子元件
电路是由电子元件（如电阻器、电容器和电感器）连接在一起形成的，用于传输和控制 电流的路径。
电路和电子元件的原理和应用
放大和滤波
放大电路用于增强信号的幅度， 滤波电路用于去除噪音和干扰， 确保信号的质量。
数字和模拟
数字电路处理离散的数字信号， 模拟电路处理连续的模拟信号。 两者都在电气工程中具有重要 的应用。
行业前景
电气工程在现代社会中的需求不断 增长。随着能源和环境问题的不断 引起关注，电气工程师在可再生能 源、智能电网和电动交通等领域的 发展前景非常广阔。
电气工程的历史和发展
1
电学的起源
电学的研究起源于古希腊时期，人们开始探索静电现象和电子运动的基本原理。
2
工业革命时期
19世纪工业革命带来了电气工程的飞速发展。电力系统的建立和电机的发明，为现代社会奠定了 基础。
电气系统设计和优化
1
方案设计
2
设计者根据需求分析的结果，制定合适的电
气系统设计方案，并考虑成本、可行性和效
率等因素。
3
需求分析
设计者通过分析用户需求和系统要求来确定 电气系统的功能和性能指标。
优化调试
设计者对电气系统进行调试和优化，以确保 系统的稳定运行和满足设计要求。
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Brief Introduction
♪ Electric power engineering have been gradually replaced steam power after the 1980s due to the easy conversion(转换), transmission and control of electric power.
Where conditions permit also utilizes tidal, geothermal and wind power to generate electricity. Meanwhile, small
and medium power stations are established according to local conditions
Thank
you ！
Team 7 :Engineering Projects
Electric Power Engineering
By H.Jtion
♪ Electric power engineering is a kind of projects which is associated with the production(生产), transmission（输送） and distribution（分配）of electric energy , broadly includes the power as a power and energy in a variety of applications in the field of engineering.
Technology
♪ Transmission and distribution of Electric energy primarily through high and low voltage AC(高低压交流电) power network to achieve. Nearly 30 years, HVDC technology(高压直流输电 技术) has made rapid progress, and has been widely used in some areas of transmission
Importance
♪ Electricity has a very close relationship with production, the national economy and people‘s lives. It’s very important to us, to everyone. Can you imagine a day without electricity ? It must be extremely messy and troublesome. So we should protect and save it.
Production
♪ After the 20th century, electricity production depends mainly on thermal power Plant（火电厂）, hydropower station 水电站and nuclear power Plant(核电站).
Application
♪ Electric energy for industrial, agricultural, transportation and the main driving force in the form of national defense and people's family life is indispensable. It also has a wide range of applications in drag, lighting, electric, electrochemical and communication and other aspects.