电气设备常用基本文字符号

电气设备常用基本文字符号设备、装置举例基本文字符和元器件种IEC号类中文名称英文名称单字双字母母件分离元件放大器AAmplifier usingdiscrete件Components组激光器Laser—部调节器Regulator本表其他地方未提及的组件、部件电桥Bridge AB晶体管放大器Transistor amplifierAD集成电路放大器Integrated circuitamplifier AJ—磁放大器Magnetic amplifierAM—电子管放大器Valve amplifierAV—印制电路板Printed circuitboard AP—抽屉柜Drawer AT支架盘Rack AR—非电量到电热电传感器Ther moelectricsensor B量变换器或热电池Thermo-cell电量到非电光电池Photoelectric cell量变换器测功计Dynamometer晶体换能器Crystal transducer送话器Microphone拾音器Pick up扬声器Louds peaker耳机Earphone自整角机Synchro旋转变压器Resolver模拟和多级数字变换器或传感器Analogue andmultiple-stepdigital Transducersor sensorsas（用作指示和测used indicatingmeasuring量）purposes压力变换器Pressure transducerBP—位置变换器Position transducerBQ—旋转变换器（测速BR—Rotation transducertacho发电机）generator温度变换器Temperature transducerBT速度变换器Velocity transducerBV—电容器电容器Capacitorc设备、装置和举例基本文字符元气件种类号IEC中文名称英文名称单字双字母母二进指元件数字集成电路和器件Digital integratedcircuits andDdevices:延迟器件存储器件延迟线Delay line双稳态元件Bistable element单稳态元件Monostable element磁芯存储器Core storage寄存器Register磁带记录机Magnetic taperecorder盘式记录机Disk recorder其他元气件本表其他地方未规定E的器件发热器件Heating deviceEH—照明灯Lamp forlighting EL空气调节器Ventilator EV保护器件过电压放电器件避雷Over voltagedischarge deviceFArrester器具有瞬时动作的限流Current thresholdprotective FA保护器件device withInstantaneousaction具有延时动作的限流FRCurrent thresholdprotective—保护器件device withTime-lag action_____________具有延时和瞬时动FSCurrent thresholdprotective作的限流device withInstantaneousand time-lag保护器件action熔断器Fuse FU—限压保护器件Voltage thresholdprotective FVdevice发生器发旋转发电机振荡器Rotating generatorOscillator G电机电源发生器Generator GS同步发电机Synchronous generator异步发电机Asynchronous generatorGA发生器发蓄电池Battery GB—电机电源旋转式或固定式变频Rotating orstatic frequencyGFconverter机设备、装置和举例基本文字符元器件种类号IEC中文名称英文名称单字双字母母信号器件H—声响指示器Acoustical indicatorHA•^―光指示器Optical indicatorHL—指示灯Indicator lampHL继电器接触K—瞬时接触继电器器Instantaneous contactorrelay KA—瞬时KAInstantaneous allor nothing—有或无继电器Rellay交流继电器Alternating realyKA闭锁接触继电器（机械闭Latching contactorrealy KLall-or-nothing relaywith me锁chanical或永磁铁式有或无继电latch orpermanent magnet器）双稳态继电器Bistable relayKL—接触器Contactor KM—极化继电器KPPolarized relay—簧片继电器Reed relay KR—KT—延时有或无继电器Time-delay all-or-nothing relay逆流继电器Reverse currentrelayKR电感器电抗感应线圈Induction coilLine trapL—器线路陷波器电抗器（并联Reactorsshunt andseries和串联）电动机电动机Motor M—同步电动机Synchronous motorMS可做发电机或电动机的Machine capableof useas aMG电机generator ormotor力矩电动机Torque motorMT模拟元件运算放大器NOperational amplifier—混合模拟/数字器件Hybrid analogue/digital device设备、装置举例IEC和元器件基本文字符号种类中文名称英文名称单字母双字母测量设备指示器件PIndicating devices实验设备记录器件Recording devices积算测量器件Integrating measuringdevices信号发生器Singnal generator电流表Ammeter PA—（脉冲）计数器Pulse CounterPC—电度表Watt hourmeter PJ记录仪表Recording instrumentPS—时钟、操作时间表Clock,Operating timemeter PT电压表Voltmeter PV—电力电路Q—断路器Circuit-breakerQF—的开关器电动机保护开关Motor protectionswitch QM—件隔离开关Disconnector isolatorQS—电阻器电阻器Resistor R变阻器Rheostat电位器Potentiometer RP测量分路表Measuring shuntRS热敏电阻器RTResistor withinherentvariability dependent onthetemperature压敏电阻器Resistor withinherent RVvariabilitydependentonthevoltage控制、记拨号接触器连接级Dial contactConnecting stageS—忆、信号电路控制开关Control switchSA—的选择开关Selector switchSA开关器件按纽开关Push-button SB—选择机电式有或无传感器（单级All-or-nothing sensorsof数字传感器）mechanical andelectronicnature one-step digitalsensors液体标高传感器Liquid levelsensor SL—压力传感器Pressure sensorSP—位置传感器（包括接近传感Position sensorincludingSQproximity-sensor器）转数传感器Rotation sensorSR温度传感器Temperature sensorST—变压器T—电流互感器Current transformerTA—控制电路电源用变压器Transformer forcontrol circuitTC—supply电力变压器Power transformerTM—磁稳压器Magmetic stabilizerTS电压互感器Voltage transformerTV—调制器鉴频器Disoriminator U变换器解调器Demodulator变频器Frequency changer编码器Coder变流器Converter种类基本文字符号IEC设备、装置和元器件中文名称英文名称单字母双字种类母调制器变逆变器Inverter U换器整流器Rectifier点板译码器Telegraph translator电子管晶气体放电管二极管晶体管Gas-discharge tubeDiode V体管晶闸管Transistor Thyristor电子管Electronic tubeVE控制电路用电源的整流器Rectifier forcontrol circuitVC~~supply传输通道导线电缆母线Conductor CableBusbar WWaveguide波导波导天线波导定向耦合器Waveguide directionalCouper偶极天线抛物天线DipoleParbolic aerial子连接插头和插座接线柱电X头缆封端和接头焊接端子板座Connecting plugand socked端Clip Cablesealing ednand插joint Solderingterminal strip插连接片Link XB—测试插孔Test jackXJ插头Plug XP—插座Socket XS—端子板Terminal boardXT—电气操作气阀Pneumatic valveY—的机械器电磁铁Electromagnet YA—件电磁制动器Electromagnetically operatedYB—brake电磁离合器Electromagnetically operatedYC—clutch电磁吸盘Magnetic chuckYH—气动阀Motor operatedvalve YM—电磁阀Electromagnetically operatedYVvalve终端设备电缆平衡网络ZCable balancingnetwork混合变压压缩扩展器Compandor器滤波器晶体滤波器Crystal filter均衡器限幅器网络Network。