电气行业英文中文术语对照
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
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waveguide 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coaxial 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
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reference Voltage 基准电压magnetic amplifier 磁放大器amplidyne 微场扩流
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
电气中英文术语技术资料集2010-04-02 15:23:08
一．电气名词Electric items
二．线路（母线、回路）Lines (Bus , circuits)
三．设备Equipments
四．保护、继电器Protection , relays
五．电气仪表Electric instruments
六．防雷Lightning protection
七．接地Grounding , earthing
八．室、所Room , Substation
九．电修车间设备Equipments of electric repair
十．材料Material
十一．图名Drawings , diagrams
十二．表头Tables
十三．标准图词汇Terms from standard DWG
一．电气名词Electric items
交（直）流Alternating (direct) current
短路电流Short-circuit current
起始次暂态短路电流Initial subtransient short-circuit current
冲击电流Impulse current
稳态短路电流Steady state short-circuit current
临界电流Critical current
切断电流Rupturing current
熔断电流Blow-out current
故障电流Fault current
计算电流Calculating current
极限有限电流Limit effective current
过电流Over current
逆电流Inverse current
整定电流Setting current
额定电流Rated current
电流密度Current density
短路电流最大有效值Maximum effective value of short-circuit current 高压High-voltage , High-tension
低压Low-voltage , Low-tension
计算电压Calculating voltage
激磁电压Exciting voltage
冲击电压Impulse voltage
临界电压Critical voltage
残留电压Residual voltage
击穿电压Puncture voltage
脉动电压Pulsating voltage
供电电压Supply voltage
电力电压Power voltage
照明电压Lighting voltage
灯丝电压Filament voltage
额定电压Rated voltage
电压损失Voltage loss
过(欠)电压Over (under) voltage
线路电压Line voltage
电压降Voltage drop
工作电压Working voltage
一次电压Primary voltage
二次电压Secondary voltage
电源Electric source (power supply)
自控电压Power supply for process control
6kV控制闪光电源Flashing supply for 6kV control 工作电源Working power supply (electric source)
保安电源Emergency power supply (electric source) 直流稳压电源Stabilized D.C. source
控制电源Control supply
直流电源 D.C. source
交流电源 A.C. source
负荷计算Load calculation
设备容量Installed capacity
需要容量Electric demand
功率因数Power factor
安装高度Mounting height
耐电压Breakdown voltage
工频耐压High-voltage test with working frequency 表面闪络Surface flash-over
直流泄漏 D.C. leakage
体电阻率Volume resistivity
介质损失角Dielectric loss angle
击穿强度Puncture intensity
电压等级Voltage grade
比重Specific gravity
性能Feature
相序Phase sequence
瞬时Instantaneous
倾角Angle of inclination
跨度Span
正极Positive pole
负极Negative pole
截面(积) Cross section area
辅助电源Auxiliary source
遮断容量Interrupting capacity
载流量Current-carrying capacity
校正系数Correction factor
连续负荷Continuous load
长期载流量Continuous capacity
长时间额定值Longtime rating
电动机堵转电流Locked-rotor motor current
限定负荷Limited load
电感负荷Inductive load
感应电流Induced current
二．线路（母线、回路）Lines (Bus , circuits)
母线Bus-bar
合闸电源母线Closing power source bus
闪光母线Flashing-bus
备用母线Spare bus
装在支柱上的插接式母线Post-supported plug-in bus way
装在吊钩上的插接式母线Hook-supported plug-in bus way 装在支架上的插接式母线Bracket-supported plug-in bus way 小母线Miniature bus
电源小母线Power supply miniature bus
操作小母线Operating miniature bus
事故信号小母线Miniature bus for fault signal
闪光小母线Flashing miniature bus
主母线Main bus
直流主母线 D.C. main bus
预告母线Prewarning bus
干线Main line
照明干线Lighting main line
接地干线Grounding main line
插座干线Receptacle main line
电压干线Voltage main line
端子出线Terminal outgoing
中性线Neutral
支线Branch-line
引入线Lead-in
电气线路Electric circuit
交流配电线路A.C. distribution circuit
直流配电线路 D.C. distribution circuit
事故照明线路Emergency lighting circuit
控制线路Control circuit
接地或接零线路Grounding or neutralizing circuit
信号线路Signal circuit
有接地极的接地线路网Grounding with grounding electrodes
定子绕组测温回路Temperature measuring circuit for stator winding 接地信号回路Grounding signal circuit
闪光信号回路Flashing-signal circuit
开阀回路Circuit for opening valve
关（闭）阀回路Circuit for closing valve
开度计回路Circuit for opening meter
电流测量回路Current-measuring circuit
差动保护回路Differental protective circuit
过流保护回路Over-current protective circuit
合闸回路Closing circuit
停车延时回路Delayed shutdown circuit
掉闸回路Trip circuit
激磁回路Exciting circuit
备用回路Spare circuit
主回路Main circuit
馈路Feeder circuit
现有回路Existing circuit
单线回路Single-wire circuit
接地回路Earthed circuit
有电压的电路Live circuit
三．设备Equipments
高压开关柜H.V. switchgear
动力配电箱Power distribution cabinet
电源配电箱Source distribution cabinet
直流配电屏 D.C. switchboard (distribution panel)
交流低压配电屏 A.C.L.V. switchboard (distribution panel)
静电电容器柜Static capacitor cabinet
多种电源插销箱Receptacle box for miscellaneous power supplies
控制箱Control cabinet
照明配电箱Lighting (distribution panel)
连接箱Junction box
出线盒Outlet box
开关箱Switch box
控制台Console
分段屏Sectionalizing panel
进线屏Incoming line panel
电控箱Electric control panel
边屏Side board
端子箱Terminal box
供电盘Power supply box
瓶车箱Synchronizing cabinet
感应调压器专用变压器高压柜Special transformer H.V. cabinet for induction voltage regulator
电压互感器柜Potential transformer cabinet
信号屏Signal panel
浮充屏Floating panel
蓄电池屏Battery panel
充电屏Charging panel
母线联络柜Bus tie cabinet
转换开关Transfer switch
电压表转换开关Voltmeter change-over switch
铁壳开关Metal-clad switch (Iron-clad switch)
管式熔断器Cartridge fuse
真空断路器Vacuum circuit breaker (V.C.B.)
自动开关Automatic switch
高压负荷开关H.V. load break switch
三极高压断路器3-pole HV circuit-breaker
刀开关Knife switch
转换开关Transfer switch
双极铁壳开关2-pole iron-clad switch
风扇变速开关Fan speed regulator switch
密闭照明灯开关Hermetic lighting switch
防爆照明灯开关Explosion-proof lighting switch
行程开关Limit switch
高压隔离开关H.V. disconnecting switch
明装单极板钮开关Surface-mounted single-pole toggle switch 暗装单极板钮开关Flush-mounted single-pole toggle switch 三路开关Three-way switch
气密式组合开关Hermetic packet type switch
防护式开关Guard type switch
联锁开关Interlock switch
操作方式选择开关Selecting switch for types of operation
控制电源开关Switch for control supply
主令开关Master switch (controller)
多切点切换开关Multi-point change-over switch
按钮Push-button
控制按钮Control push-button
防爆控制按钮Explosion-proof control push-button
事故紧急按钮Emergency stopping push-button
起动按钮Starting push-button
停止按钮Stopping push-button
现场按钮Push-button in field
挡板damper
音响解除按钮Push-button for sound release
起动器Starter
磁力起动器Magnetic starter
综合起动器Combination starter (Magnetic starter combination)
电力变压器Power transformer
调压变压器Voltage regulating transformer
电压互感器Potential transformer
电流互感器Current transformer
照明变压器Lighting transformer
三相三绕组变压器3-phase tertiary winding transformer
高压试验变压器H.V. testing transformer
局部照明变压器Local lighting transformer
多量程仪用电流互感器Multi-range current transformer for measurement 降压变压器Step-down transformer
伺服电动机Servo-motor
双电压电动机Dual-voltage motor
感应电动机Induction motor
交流异步电动机 A.C. asynchronous motor
同步电动机synchronous motor
三相滑环感应电动机3-phase slip-ring induction motor
三相鼠笼感应电动机3-phase squirrel-cage induction motor
绕线式电动机Wound-rotor induction motor
反应式电动机Reaction motor
柴油发电机Diesel generator
励磁发电机Excitation generator
明装双极插座Surface-mounted 2-pole receptacle
暗装双极插座Flush-mounted 2-pole receptacle
双极带接地插座2-pole receptacle with grounding contact
单相三孔明插座Surface-mounted single phase 3-pole receptacle
防护式明装三相四孔插座Guard type surface-mounted 3-phase 4-pole receptacle
配照型灯Standard dome lighting fitting
搪瓷深照型灯Enameled high bay lighting fitting
防水防尘灯Water and dust proof lighting fitting
安全灯Safety lighting fitting
隔爆灯Explosion-proof lighting fitting
弯灯Goose-neck light
壁灯Wall light
高压水银灯High pressure mercury vapor lighting fitting 投光灯Flood-light (projection light)
信号灯Signal lamp
天棚灯Ceiling-mounted lighting fitting
局部照明灯Local lighting fitting
灯座Lamp holder
事故照明灯Emergency lighting fitting
高压水银荧光灯H.P. mercury fluorescent lighting fitting 广照型工厂灯Wide lit type industrial fitting
深照型灯具High bay lighting fitting
白炽灯具Incandescent lamp (bulb)
圆球型灯Globe lamp
嵌入式荧光灯flush type fluorescent lighting fitting
红色障碍灯Red obstruction lamp for aviation
厂区道路照明灯Street lighting in plant area
路灯Street lamp
视孔灯Inspection hole lamp
立杆弯灯goose-neck post lamp , pole lamp
模拟报警信号Semigraph and alarm signal
自整角机Selsyn
励磁机Exciter
显示器Display
电位器Potentiometer
内电阻Internal resistance
固定电阻（器）Fixed resistance
脱扣Release , trip
分励Shunt trip
特殊失压脱扣器Special no-voltage release
“或”开关放大器“Or” switch amplifier
制动器Brake
电容Capacitor
整流器Rectifier
镇流器Chock
分流器Shunt
油变阻器Oil immersed rheostat
频敏电阻器Frequency sensitive rheostat
滑线变阻器Sliding rheostat
蜂鸣器Buzzer
电机加热器Space heater (for motor)
空气断路器电机操作机构Motor operating mechanism for air circuit-breaker
可控硅励磁装置Silicon controlled rectifier excitation device
保护装置Protective device (element)
闪光装置Flashing device
接闪装置（避雷器）Lightning arrester
断相保护Phase failure protection
四．保护、继电器Protection , relays
信号继电器Signal relay
过电流继电器Over-current relay
电压继电器Voltage relay
时间继电器Time relay
中间继电器Auxiliary relay
热继电器Thermal relay
温度继电器Temperature relay
瓦斯继电器Gas relay
控制电源中间继电器Auxiliary relay for control supply 自动操作继电器Relay for auto-operation
低电压继电器Under-voltage relay
过电压继电器Over-voltage relay
联锁继电器Interlock relay
冲击继电器Impact relay
合闸位置继电器Close position relay
逆流继电器Reverse-current relay
差流继电器Differential current relay
差动继电器Differential relay
电流继电器Current relay
功率继电器Power relay
接地继电器Earthing relay
重合闸继电器Reclosing relay
同步继电器Synchronous relay
速动继电器Quick acting relay
定时限继电器Definite time relay
光电继电器Photoelectric relay
电子继电器Electronic relay
电磁式继电器Electromagnetic relay
电动式继电器Electrodynamic relay
气压继电器Gas-pressure relay
继电器常开触点Relay N.O. contact
继电器常闭触点Relay N.C. contact
继电器保护触点（常开）Relay holding contact (N.O.)
能自动返回的常闭按钮触点Self-return button with N.C. contact 模拟信号触点Contact for semigraph signal
强励磁接点Shock excitation contact
电感线圈Induction coil
电流线圈Current coil
脱扣线圈Trip coil
合闸线圈Close coil
释放线圈Releasing coil
掉闸线圈Tripping coil
予告信号Prewarning signal
掉闸回路断线信号Breakage signal of trip circuit
断路器事故掉闸信号Fault trip signal of breaker
掉闸音响信号Tripping audible signal
重瓦斯预告信号Heavy gas prewarning signal
温度预告信号Temperature prewarning signal
手动、自动操作时事故信号Fault signal in manual/automatic operation 保护掉闸Protective trip
控制掉闸Control trip
手动跳闸Manual trip
变电所紧急停车Emergency shutdown at substation
工艺故障Fault in process
励磁故障Fault in excitation
工作电源失电报警No-voltage alarm of working electric source
工作电源分合闸On and off of working electric source
工作电源投入Throw-in of working electric source
保安电源送电supply of emergency electric source
运转指示Indicating of operation
投入指示Indicating of throw-in
同步指示Indicating of synchronism
延时停车Delayed shutdown
电源切除Switch off the power supply
速断及过流断通Instantaneous trip and over-current off/on
自保持Self-holding
自锁Self-lock
联锁Interlocking
绝缘监视Insulation supervision
电压监视Voltage supervision
联锁解除Release of interlock
工作、保安电源切换Transfer of working and emergency power supply
发电机与工作母线并车Synchronization of generator to working bus
重瓦斯保护Heavy gas protection
开或闭超扭矩保护Over-torque protection during opening and closing valve
电机起动顺序Sequence of motor starting
铭牌框注字Name plate denotation (inscription)
五．电气仪表Electric instruments
电流表Ammeter
电压表Voltmeter
三相三线有功电度表Three-phase three-wire kilowatt-hour meter , kWh meter
单相电度表Single-phase kilowatt-hour meter
三相无功电度表Three-phase kilovar-hour meter
有功功率表Active power meter , kilowatt meter
无功功率表Reactive power meter , kilovar meter
三相瓦特表(功率表) Three-phase watt meter
功率因数表Power factor meter
频率表Frequency meter
验电流器Galvanoscope
欧姆表Ohmmeter
相位表Phase meter
转速表Tachometer
波长表Wave-length meter
三相四线制标准电度表3-phase 4-wire standard watthour-meter 过载电流表Overload ammeter
低功率因数瓦特表Low power-factor wattmeter
交直流两用钳型电流表 A.C./D.C. multi-purpose tongtester
兆欧表Megger , Megohmmeter
万用表Avometer
微安表Microammeter
毫安表Milliammeter
各种测量仪表Various kind of measuring instruments
接地电阻测量仪Earthing resistance tester
真空管电压表Vacuum tube voltmeter
电动秒表Electric second-meter
六．防雷Lightning protection
避雷装置Lightning protector
避雷针Lightning rod
避雷带Strap type lightning protector
避雷网Network of lightning protector
避雷针支架Lightning rod support
避雷针尖Tip of lightning rod
避雷针拉铁Brace for lightning rod
避雷器Lightning arrester , surge discharger
球型避雷器Spherical arrester
管形避雷器Tubular arrester
2017年机型电气系统英文缩写词考试重点（按页码） 缩写词英文全拼中文页码ESDS Electrostatic Discharge Sensitive静电放电敏感P21 SC semi-conductive半导体P21 FCU Flight Control Unit飞行控制组件P29 EFIS Eletronic Flight Instrument System电子飞行仪表系统P29 ECAM electronic centralized aircraft monitor电子中央飞机监视器P29 E/WD engine/warning display发动机/警告显示P29 MCDUs Multipurpose Control and Display Unit多功能控制显示组件P29 SPCU Standby Power Control Unit备用电源控制组件P36 TRUs Transformer Rectifier Units变压整流器P36 IDGs Integrated Drive Generators整体驱动发电机P36 ESS Essential bus重要汇流条P36 PMG permanent magnet generator永久磁铁发电机P43 ACF AC ESS FEED主交流馈电P43 CT Current Transformer电流互感器P50 BTC Bus Tie Contactor汇流条连接接触器P50 BTB bus tie breaker汇流条连接断路器P62 GCUs generator control units发电机P62 SSB split-system breaker系统分离断路器P62 APU Auxiliary Power Unit辅助动力装置P73 BITE built-in test equipment自检设备P73 ECAM Electronic Centralized Aircraft Monitoring电子式飞机中央监控系统P73 FCU fuel control unit燃油控制装置P73 TRU Transformer Rectifier Unit变压整流器P73 CFDS Centralized Fault Display System中央故障显示系统P73 AIDS Aircraft Integrated Data System飞机综合数据系统P73 GCU generator control unit发电机控制组件P73 BPCU bus power control unit汇流条电源控制组件P73 MLG Main Landing Gear主起落架P90
Heat sink 散热器 Forward conduction 正向导通 Thyristor 晶闸管 Solid-state power device 固态功率器件 Silicon wafer 硅片，硅晶片 Self-latching 自锁 电流额定值current rating 反向击穿电压reverse breakdown voltage 负电流脉冲negative current pulse 交流电动机相位控制phase control AC motor 反向并联二极管reverse shunting diode 正信号positive signal Gate-turn-off thyristors 可关断晶闸管 固态功率器件基础 2.1 引言 在这一章中我们重点讨论固态功率器件，并且只讨论它们在相位控制或频率控制的三相460V交流鼠笼式感应电动机的应用。 2.2 固态功率器件 应用于固态交流电动机控制的功率半导体主要的五个类型如下： （1）二极管 （2）晶闸管（例如：硅控整流器SCRs） （3）（电子）晶体管 （4）可关断晶闸管 （5）双向可控硅 硅控整流器和双向可控硅通常用于相位控制。各种各样的二极管制品、硅控整流器、电子晶体管和可开断晶体管都应用于速度控制。这些器件的共性是：利用硅晶体薄片层层堆叠构成PN结的各种组合。在二极管、硅控整流器和可关断晶闸管中，P结常被叫作阳极，N结常被叫做阴极，在电子晶体管中相应的被叫做集电极和发射极。这些器件的区别在于导通和关断的方法及电流和电压的容量。 让我们来简答看一下这些器件，了解一下他们的参数。 2.2.1 二极管 图2.1是一个二极管。左边是一个中间有硅晶片的PN结，右边是单个二极管的表示符号。当阳极为正阴极为负时，会有电流通过，二极管本身伴随着一个比较小的压降。当极性相反时，只有很小的反向漏电流通过，这在图2.2中有表现出来。正向压降一般是1V左右，与电流额定值无关。 （PN结阳极阴极单个二极管PN结和表示符号） 二极管的正向电流额定值取决于起大小和设计，而这二者是根据器件的散热要求来确定的，一保证掐进不超过最大结温（通常是200℃）。 反向击穿电压（见图2.2）是二极管的另一个重要参数，它的数值较二极管尺寸大小更多地取决于其内部设计。
电力系统power system 发电机generator 励磁excitation 励磁器excitor 电压voltage 电流current 升压变压器step-up transformer 母线bus 变压器transformer 空载损耗no-load loss 铁损iron loss 铜损copper loss 空载电流no-load current 有功损耗active loss 无功损耗reactive loss 输电系统power transmission system 高压侧high side 输电线transmission line 高压high voltage 低压low voltage 中压middle voltage 功角稳定angle stability 稳定stability 电压稳定voltage stability 暂态稳定transient stability 电厂power plant 能量输送power transfer 交流AC 直流DC 电网power system 落点drop point 开关站switch station 调节regulation 高抗high voltage shunt reactor 并列的apposable 裕度margin 故障fault 三相故障three phase fault 分接头tap 切机generator triping 高顶值high limited value 静态static (state) 动态dynamic (state) 机端电压控制AVR 电抗reactance 电阻resistance 功角power angle 有功（功率）active power 电容器Capacitor 电抗器Reactor 断路器Breaker 电动机motor 功率因数power-factor 定子stator 阻抗impedance 功角power-angle 电压等级voltage grade 有功负载: active load PLoad 无功负载reactive load 档位tap position 电阻resistor 电抗reactance 电导conductance 电纳susceptance 上限upper limit 下限lower limit 正序阻抗positive sequence impedance 负序阻抗negative sequence impedance 零序阻抗zero sequence impedance 无功（功率）reactive power 功率因数power factor 无功电流reactive current 斜率slope 额定rating 变比ratio 参考值reference value 电压互感器PT 分接头tap 仿真分析simulation analysis 下降率droop rate 传递函数transfer function 框图block diagram 受端receive-side
各种电子元件符号 正弦交流电流的公式为i=Isin2πft i是交流电流的瞬时值，I是交流电流的最大值，f是交流电的频率，t称为时间 随着时间的推移，交流电流可以从零变到最大值，从最大值变到零，又从零变到负的最大值，从负的最大值变到零。在三角函数中2πft相当于角度，它反映了交流电任何时刻所处的状态，是在增大还是在减小，是正的还是负的等等。因此把2πft叫做相位，或者叫做相。 二极管 表示符号:D 变容二极管 表示符号:D 双向触发二极管 表示符号:D 稳压二极管 表示符号:ZD,D 稳压二极管 表示符号:ZD,D 桥式整流二极管 表示符号:D 肖特基二极管隧道二极管光敏二极管或光电接收二极
隧道二极管管 发光二极管 表示符号：LED 双色发光二极管 表示符号：LED 光敏三极管或光电接收三极 管 表示符号：Q,VT 单结晶体管（双基极二极管） 表示符号：Q,VT 复合三极管 表示符号：Q,VT NPN型三极管 表示符号：Q,VT PNP型三极管表示符号：Q,VT PNP型三极管 表示符号：Q,VT NPN型三极管 表示符号：Q,VT 带阻尼二极管NPN型三极管 表示符号：Q,VT 带阻尼二极管及电阻NPN型 三极管IGBT 场效应管 带阻尼二极管IGBT 场效应 管
表示符号：Q,VT 表示符号：Q,VT 表示符号：Q,VT 接面型场效应管P-JFET 接面型场效应管N-JFET 场效应管增强型P-MOS 场效应管增强型N-MOS 场效应管耗尽型P-MOS 场效应管耗尽型N-MOS 电阻电阻器或固定电阻表 示符号：R 电阻电阻器或固定电阻表 示符号：R 电位器 表示符号:VR，RP,W 可调电阻 表示符号:VR，RP,W 电位器 表示符号:VR，RP,W 可调电阻 表示符号:VR，RP,W 三脚消磁电阻二脚消磁电阻 压敏电阻热敏电阻
企业管理常见英文缩写 QMS: Quality Management Systems 质量管理体系 EMS：Environment Management Systems 环境管理体系 SA ：社会责任 Social Accoutability HACCP ：危害分析与关键控制点 Hazard Analysis and Critical Control Point RoHS：电气电子设备中限制使用某些有害物质指令 The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment WEEE：报废电子电气设备指令 Waste Electrical and Electronic Equipment IAF： International Accreditation Forum 国际认可论坛 IAF/MLA: 国际认可论坛多边承认协议 CNAB：中国认证机构国家认可委员会英文名称为：China National Accreditation Board for Certifiers CNAT：中国认证人员与培训机构国家认可委员会(CHINA NATIONAL AUDITOR AND TRAINING ACCREDITATION BOARD,简称CNAT) CNAL：中国实验室国家认可委员会英文名称为CHINA NATIONAL ACCREDITATION BOARD FOR LABORATORIES IECQ：是国际电工委员会电子委员会电子元器件质量评定体系International Electrotechnical Commission Quality IEC是国际电工委员会 International Electrotechnical Commission National/International/Customer Standard. Control Procedure. 国家国际客户标准控 制程序 Product Document Control Procedure. 产品文件控制程序 Stock Taking Procedure. 仓库盘点控制程序 New Suppliers/Sub-contractor Evaluation.
POWER SUPPLY AND DISTRIBUTION SYSTEM ABSTRACT The basic function of the electric power system is to transport the electric power towards customers. The l0kV electric distribution net is a key point that connects the power supply with the electricity using on the industry, business and daily-life. For the electric power, allcostumers expect to pay the lowest price for the highest reliability, but don't consider that it's self-contradictory in the co-existence of economy and reliable.To improve the reliability of the power supply network, we must increase the investment cost of the network construction But, if the cost that improve the reliability of the network construction, but the investment on this kind of construction would be worthless if the reducing loss is on the power-off is less than the increasing investment on improving the reliability .Thus we find out a balance point to make the most economic,between the investment and the loss by calculating the investment on power net and the loss brought from power-off. KEYWARDS：power supply and distribution,power distribution reliability，reactive compensation,load distribution
+ plus 加号；正号 - minus 减号；负号 ±plus or minus 正负号 ×is multiplied by 乘号 ÷is divided by 除号 ＝is equal to 等于号 ≠is not equal to 不等于号 ≡is equivalent to 全等于号 ≌is equal to or approximately equal to 等于或约等于号 ≈is approximately equal to 约等于号 ＜is less than 小于号 ＞is more than 大于号 ≮is not less than 不小于号 ≯is not more than 不大于号 ≤is less than or equal to 小于或等于号 ≥is more than or equal to 大于或等于号 % per cent 百分之… ‰per mill 千分之… ∞infinity 无限大号 ∝varies as 与…成比例 √(square) root 平方根 ∵since; because 因为 ∴hence 所以 ∷equals, as (proportion) 等于，成比例 ∠angle 角 ⌒semicircle 半圆 ⊙circle 圆 ○circumference 圆周 πpi 圆周率 △triangle 三角形 ⊥perpendicular to 垂直于 ∪union of 并，合集 ∩intersection of 交，通集 ∫the integral of …的积分 ∑(sigma) summation of 总和 °degree 度 ′minute 分 ″second 秒 ℃Celsius system 摄氏度 { open brace, open curly 左花括号 } close brace, close curly 右花括号 ( open parenthesis, open paren 左圆括号 ) close parenthesis, close paren 右圆括号() brakets/ parentheses 括号 [ open bracket 左方括号 ] close bracket 右方括号 [] square brackets 方括号 . period, dot 句号，点 | vertical bar, vertical virgule 竖线 & ampersand, and, reference, ref 和，引用 * asterisk, multiply, star, pointer 星号，乘号，星，指针 / slash, divide, oblique 斜线，斜杠，除号 // slash-slash, comment 双斜线，注释符 # pound 井号 \ backslash, sometimes escape 反斜线转义符，有时表示转义符或续行符 ~ tilde 波浪符 . full stop 句号 , comma 逗号 : colon 冒号 ; semicolon 分号 ? question mark 问号 ! exclamation mark (英式英语) exclamation point (美式英语) ' apostrophe 撇号 - hyphen 连字号 -- dash 破折号 ... dots/ ellipsis 省略号 " single quotation marks 单引号 "" double quotation marks 双引号 ‖ parallel 双线号 & ampersand = and ～swung dash 代字号 §section; division 分节号 →arrow 箭号；参见号
火力发电站常用英语技术词汇（电气部分） A List of Abbreviations and Symbols in English-Chinese（Electric part） ALIGN Alignment 校正 AC Alternating Current 交流电 ALM Alarm 报警 AMP Ampere 安培 AX THR BRG Axis Thrust Bearing 轴向推力，轴承AUTO Automation 自动 AUX Auxiliary 辅助的 BYPS Bypass 旁路 BNR Burner 燃烧器 CPL Control Pannel Local 就地控制盘CPM Control Pannel Main 主控盘 CRT Cathode Ray Tube 屏幕显示 CT Current Transformer 变流器 CB Cut Breaker 开关 CMPR Compressor 压缩机CNDNR Conditioner 调节器 CNTL Control 控制 CNTLE Controller 控制器CONDTY Conductivity 导电率 CIR Circuit 回路 COUPI Coupling 藕合，连接CP Condensate Polisher 除盐装置 CS Control Switch 控制开关 DC Direct Current 直流电DEV Deviation 偏差DIFFRL Y Differential Relay 差动继电器DIST Disturbance 故障DSCH Discharge 排出EP Electrical Static Precipitator 电除尘EFF Efficiency 效率 EO Electric Operate 电气操作EQ Equipment 设备 ER Error 误差ESC Escape 逃逸ESS Engineering Safety System 保安系统EU Engineering Unit 工程单位FDBK Feedback 反馈 FCB Field circuit breaker 灭磁开关 FA Failure Alarm 故障报警 FD Forced Draft 强制通风 FDF Forced Draft Fan 送风机 1
Foundation of PLC 1. The central processing unit Although referred to as the brain of the system, the Central Processing Unit in a normal installation is the unsung hero, buried in a control cabinet, all but forgotten. 2. Basic Functionality In a programmable controller system, the central processing unit(CPU) provides both the heart and the brain required for successful and timely control execution. It rapidly and efficiently scans all of the system inputs, examines and solves the application logic, and updates all of the system outputs. In addition, it also gives itself a checkup each scan to ensure that its structure is still intact. In this chapter we will examine the central processing unit as it relates to the entire system. Included will be the various functional blocks in the CPU, typical scan techniques, I/O interface and memory users, power supplies, and system diagnostics. 3. Typical Function Block Interactions In practice, the central processing unit can vary in its architecture, but consists of the basic building block structure illustrated in Fig.1.1.The processing section consists of one or more microprocessors and their associated circuitry. While it is true that some of the luxury of using microprocessors, most modern systems use either a single microprocessors such as the AMD 2903, usedin a bit slice architecture. This multiple microprocessor system to break the control system tasks into many small components which can be executed in parallel. The result of this approach is to achieve execution speeds that are orders of magnitude faster than their single-tasking counterparts. In addition to efficiently processing direct I/O control information and being programmable, the real advantage that microprocessor-based system have over their hardwired relay counterparts is the ability to acquire and manipulate numerical data easily. It is this attribute that makes programmable controllers the powerhouses that they are today in solving tough factory automation problems. The factory of tomorrow will run efficiently only if quality information about process needs and status of the process equipment are known on a realtimes basis. This can and will come about only if the unit level controllers, including programmable controllers, are empowered with the ability to collect, analyze, concentrate, and deliver data about the process. As the
一．电气名词 Electric items 二．线路（母线、回路）Lines (Bus , circuits) 三．设备 Equipments 四．保护、继电器 Protection , relays 五．电气仪表 Electric instruments 六．防雷 Lightning protection 七．接地 Grounding , earthing 八．室、所 Room , Substation 九．电修车间设备 Equipments of electric repair 十．材料 Material 十一．图名 Drawings , diagrams 十二．表头 Tables 十三．标准图词汇 Terms from standard DWG 一．电气名词 Electric items 交（直）流 Alternating (direct) current 短路电流 Short-circuit current 起始次暂态短路电流 Initial subtransient short-circuit current 冲击电流 Impulse current 稳态短路电流 Steady state short-circuit current 临界电流 Critical current 切断电流 Rupturing current 熔断电流 Blow-out current 故障电流 Fault current 计算电流 Calculating current 极限有限电流 Limit effective current 过电流 Over current 逆电流 Inverse current 整定电流 Setting current 额定电流 Rated current 电流密度 Current density 短路电流最大有效值 Maximum effective value of short-circuit current 高压 High-voltage , High-tension 低压 Low-voltage , Low-tension 计算电压 Calculating voltage 激磁电压 Exciting voltage 冲击电压 Impulse voltage 临界电压 Critical voltage
×times sign multiplication 2 × 3 = 6 ·multiplication dot multiplication 2 · 3 = 6 ÷division sign / division 6 ÷ 2 = 3 obelus / division slash division 6 / 2 = 3 –horizontal line division / fraction mod modulo remainder calculation 7 mod 2 = 1 . period decimal point, decimal 2.56 = 2+56/100 separator a b power exponent 23= 8 a^b caret exponent 2 ^ 3= 8 √a square root √a ·√a = a√9 = ±3 3√a cube root 3√a ·3√a ·3√a = a3√8 = 2 4√a fourth root 4√a ·4√a ·4√a ·4√a = a4√16 = ±2 n√a n-th root (radical) for n=3, n√8 = 2 % percent1% = 1/100 10% × 30 = 3 ‰per-mille1‰ = 1/1000 = 0.1%10‰ × 30 = 0.3 ppm per-million1ppm = 1/1000000 10ppm × 30 = 0.0003 ppb per-billion 1ppb = 1/1000000000 10ppb × 30 = 3×10-7 ppt per-trillion 1ppt = 10-1210ppt × 30 = 3×10-10 Geometry symbols Symbol Symbol Name Meaning / definition Example ∠angle formed by two rays ∠ABC = 30° measured ABC = 30°angle spherical angle AOB = 30°∟right angle = 90°α = 90°
1.适用范围 本标准规定的文字符号适用于电气技术领域技术文件的编制，也可表示在电气设备、装置和元器件上或其近旁，以标明电气设备、装置和元器件的名称、功能、状态和特征。 本标准不适用于电气产品的型号编制与命名。 2. 目的 2.1 为项目代号提供电气设备、装置和元器件种类字母代码和功能字母代码。 2.2 作为限定符号与一般图形符号组合使用，以派生新的图形符号。 2.3 除2.1、2.2外，在技术文件或电气设备中表示电气设备及线路的功能、状态和特征。 3. 文字符号的组成 文字答号分为基本文字符号(单字母或双字母)和辅助文字符号。 3.1 基本文字符号 3.1.1 单字母符号是按拉丁字母将各种电气设备、装置和元器件划分为23大类，每大类用一个专用单字母符号表示。如“C”表示电容器类，“R”表示电阻器类等,见表1.单字母符号应优先采用。表1举例栏中列出的内容有限，各专业可按分类补充所需的电气设备、装置和元器件。表1列出的单字母符号与GB 5094-85《电气技术中的项目代号》中表1“项目种类的字母代码表”的规定相一致。 3.1.2 双字母符号是由一个表示种类的单字母符号与另一字母组成，其组合型式应以单字母符号在前、另一字母的后在次序列出。如“GB”表示蓄电池,“G”为电源的单字母符号。只有当用单字母符号不能满足要求、需要将大类进一步划分时，才采用双字母符号，以便较详细和更具体地表述电气设备、装置和元器件。如“F”表示保护器件类，而“FU”表示熔断器，“FR”表示具有延时动作的限流保护器件等。本标准规定的双字母符号的第一位字母只允许按表一中单字母所表示的种类使用。各专业可以补充本标准未列出的双字母符号。 3.2 辅助文字符号是用以表示电气设备、装置和元器件以及线路的功能、状态和特征的。如“SYN”表示同步，“L”表示限制，“RD”表示红色等。辅助文字符号也可放在表示种类的单字母符号后边组成双字母符号，如“S P”表示压力传感器，“YB”表示电磁制动器。为简化文字符号起见，若辅助文字符号由两个以上字母组成时，允许只采用其第一位字母进行组合，如“MS”表示同步电动机等，辅助文字符号还可以单独使用，如“ON”表示接通，“M”表示中间线，“PE”表示保护接地等。 4. 补充文字符号的原则 本标准中已规定的基本文字符号和辅助文字符号如不敷使用，可按本标准中文字符号组成规律和下述原则予以补充。 4.1 在不违背本标准编制原则的条件下，可采用国际标准中规定的电气技术文字符号。
一．电气名词Electric items 二．线路（母线、回路）Lines (Bus , circuits) 三．设备Equipments 四．保护、继电器Protection , relays 五．电气仪表Electric instruments 六．防雷Lightning protection 七．接地Grounding , earthing 八．室、所Room , Substation 九．电修车间设备Equipments of electric repair 十．材料Material 十一．图名Drawings , diagrams 十二．表头Tables 十三．标准图词汇Terms from standard DWG 一．电气名词Electric items 交（直）流Alternating (direct) current 短路电流Short-circuit current 起始次暂态短路电流Initial subtransient short-circuit current 冲击电流Impulse current 稳态短路电流Steady state short-circuit current 临界电流Critical current 切断电流Rupturing current 熔断电流Blow-out current 故障电流Fault current 计算电流Calculating current 极限有限电流Limit effective current 过电流Over current 逆电流Inverse current 整定电流Setting current 额定电流Rated current 电流密度Current density 短路电流最大有效值Maximum effective value of short-circuit current 高压High-voltage , High-tension 低压Low-voltage , Low-tension 计算电压Calculating voltage 激磁电压Exciting voltage 冲击电压Impulse voltage 临界电压Critical voltage
电子产品常用英文词汇 一、常见电子电气类英文单词 1.功率power 2.电压voltage 3.电流current 4.频率frequency 5.效率efficiency 6.波形waveform 7.交流alternating-current 8.直流direct-current 9.适配器adaptor 10. 转换器converter 11. 逆变器inverter 12. 充电器charger 13. 控制器controller 14. 启动器jump starter 15. 器件device 16. 元件component 17. 电容器capacitor 18. 电阻resistor 19. 电感inductor 20. 二极管diode 21. 稳压二极管zener 22. 三极管audion 23. 场效应管MOSFEET(Metel-Oxide-Semiconductor Field Effect Transistor) 24. 变压器transformer 25. 光藕optical coupler 26. 保险丝fuse 27. 半导体semiconductor 28. 瓷片电容ceramic capacitor 29. 电解电容electrolytic C 30. 电感inductance 31. 电容capacitance 32. 电阻resistance 33. 感性的inductive 34. 容性的capacitive 35. 阻性的resistive 36. 阻抗impedance 37. 纯正弦波pure sine wave 38. 修正正弦波modified sine wave 39. 方波square wave 40. 恒流源constant current source 41. 恒压源constant voltage source 42. 纹波电流ripple current 43. 涌入电流inrush current 44. 空载电流no-load current 45. 电网power system 46. 死区时间dead time 47. 浮充电压float charge voltage 48. 正向电压forward voltage drop 49. 续流二极管freewheel diode 50. 肖特基二极管schottky 51. 整流桥bridge rectifier 52. 超快速整流器ultra fast rectifier 53. 检测电阻sense resistor 54. 振荡电阻timing resistor 55. 散热片thermal slug/heat sink/ radiator 56. 断路器breaker 57. 过流保护器circuit breaker 58. 自由运行free running 59. 满负载full load 60. 过载overload 61. 轻载light load 62. 加载upload 63. 静态static （state） 64. 动态dynamic （state） 65. 稳态的steady 66. 静电static electricity 67. 电源调整率line regulation 68. 负载调整率load regulation 69. 满载效率full load efficiency 70. 最佳效率optimum efficiency 71. 输出效率output efficiency 72. 峰值效率peak efficiency 73. 标称效率declared efficiency 74. 视在功率apparent power 75. 有功功率active power 76. 无功功率reactive power 77. 功率因数power-factor 78. 耗散功率power dissipation 79. 空载损耗no-load loss 80. 关断状态off state 81. 电源工作电压operating supply
电气常用英文缩写(2009-02-05 11:24:28) 标签：杂谈 缩写全称中文 AC alternating current 交流电['?:lt?:,n?t??]交互的、交替的['k?r?nt]电流AC automatic control 自动控制[,?:t?'m?tik]自动的[k?n'tr?ul]控制ACA accident consequence assessment 事故后果评价 ACB air circuit breaker 空气断路器[??] ['s?:kit] ['breik?] ACC accident 故障、事故['?ksid?nt] ACCUM accumulate accumulate 累计、蓄电池 ACDS acourtic crack detection system 声裂纹检测系统 ACT/S active side 带电部件、有功部件 ACW anti-clockwise 反时针方向 ACW anti-clockwise 反时针方向 AD analog-digital 模拟-数字 AEOD analysis and evaluation of operational data 运行数据分析和管理AFC automatic frequency control automatic following control 自动频率控制：自动跟踪控制 AI artificial intelligence 人工智能 ALT alternate 交变的、交替的 ALTNTR alternator 同步发电机 AM ammeter 电流表 AMP ampere 安培 AN air natural cooled 空气自然冷却 AOC automatic overload control 自动过载控制 APC automatic plant coordinate control automatic power control 机组自动协调控制：自动功率控制 APP appendix auxiliary power plant 附录：辅助电源设备 APS acessory power supply 辅助电源 APU auxiliary power unit 辅助动力装置：辅助电源设备 ARM armature 电枢、衔铁 ASR automatic speed run up 自动升速 ASU automatic synchronizing unit 自动同步系统 AT auxiliary transformer 辅助变压器 AUS auxiliary switch 辅助开关 AUX auxiliany 辅助、备用 AVL automatic voltage control 自动电压控制 AVR automatic voltage regulator 自动调压器 BAT battery 电池 BD block decrease 闭锁减