部分电气名词字母缩写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FLD Field 磁场FLG Flange 法兰FREQ Frequency 频率1GND Ground 接地GC Generator Cooling 发电机冷却GEN Generator 发电机GMT Generator Main Trandformer 发电机变压器HS Hand Switch 手动开关H Hand 手动的HMDY Humidity 湿度INTLK Interlock 联锁IC Instrument and Control 仪表与控制（热工）INST Instrument 仪表INVR Inverter 倒相器，转换开关I /O Input/Output 输入/输出JA Power active 有功功率JF Power factor 功率因数JH Power horse load 厂用电率JR Power reactive 无功功率KA KWH active 有功电度Forward KA 正向有功电度Backward KA 反向有功电度KR KWH active 有功电度Forward KR 正向无功电度Backward KR 反向无功电度LUB Lubricate 润滑油LP Low Pressure 低压LSH Local Switch Hand 就地开关LUB OIL Lube Oil 润滑油M Mechanical 机械Motor 马达MAG Magnetic 磁性MOD Mode 方式M/A Manual/Automatic 手动/自动MAN Manual 手动MEAS Measure 测量MFT Master Fuel Trip 主燃料切断MIN Minimal 最小的MKUP (MU) Make-up 补充M.O. Manual Operate 手操MORTE Moter control center 动力控制中心MPT Main Power Transformer 主变压器OL Overload 过载OPER Operation 运行OSC Oscillograph 示波器OTLT Outlet 出口PC Power Centre 动力中心PC Pressure Controller 压力控制器PF Power Factor 功率因数PMG Permanent Magnet Generater 永磁机PRO Protection 保护2PROGR Program 程序RECT Rectifier 整流器RET Return 返回ROT Rotor 转子RPM Revolutions per minite 转/分RTU Remote Telemetry Unit 遥测装置SAT Saturate 饱和的SCN Scanner 控制器Shut-Down 停止运行SG Switchgear 开关装置SH-DN Shut-Down 切除SLS Seals 密封SO Shut Off 关闭SPD Speed 转速SST S stand-up/stand-by transformer 高压起动/备用变压器ST Start 启动，开始STD-BY Stand By 备用ST System 系统STM Steam 蒸汽STR Stator 定子STRNR Strainer 滤器SU Start Up 启动SV Solenoid Valve 电磁阀Shut Off Valve 关断阀SW Switch 开关TE Temperature Element 测量元件TG Turbine-generator 汽轮发电机Turbine-gear 汽机盘车THERM Thermal 热力的TRANS Transfer 转换TRBL Trouble 故障TRKG Tracking 跟踪TURB Turbine 汽机UAT U nit auxiliary transformer 高压厂用变压器UPS 不停电电电源V AC Vacuum 真空V AL Value 数值VB Vibration 振动VLV Valve 阀门WH Watthour 瓦小时WP Work Point 工作点WX Watt Transducer 功率转换器CV Control Valve 控制阀PS Position Switch 状态开关，位置开关PT Position Transmitter 状态变送器ON …………………………………………………………………………………开（状态）3OFF …………………………………………………………………………………关（状态） OPEN……………………………………………………………………开 (状态，常指阀门） CLOSE …………………………………………………………………关（状态，常指阀门） START……………………………………………………………………………………… 启动 STOP…………………………………………………………………………………………停止 STARTUP …………………………………………………………………………起动；启动 SHUTDOWN ………………………………………………………………………………停机 STAND BY…………………………………………………………………………………备用 ALARM ……………………………………………………………………………………报警 OPERATE………………………………………………………………………… 运行；操作 TRIP……………………………………………………………………………………… 跳闸 TEST……………………………………………………………………………………… 试验 INDICATION；DISPLAY …………………………………………………………指示；显示 INLET …………………………………………………………………………………内，入口 OUTLET…………………………………………………………………………………外，出口 INPUT ………………………………………………………………………………………输入 OUTPUT………………………………………………………………………………………输出 SIDE ………………………………………………………………………………（某）侧，边 A/M：AUTOMATION/MANUAL……………………………………………………自动/手动AUX：AUXILIARY ………………………………………………………………………辅助A/H：AUTOMATION/HAND ………………………………………………………自动/手动 LOC：LOCAL ………………………………………………………………………… 就地 REM：REMOTE ……………………………………………………………………………摇控 P：PRESSURE………………………………………………………………………………压力 T：TEMPERATURE……………………………………………………………………… 温度F：FLOW……………………………………………………………………………………流量 S：SPEED……………………………………………………………………………………速度 R：RATE ……………………………………………………………………………比率，速率 L：LOAD………………………………………………………………………… 负荷，负载 R：RISSTANCE ……………………………………………………………………………电阻 POWER………………………………………………………………………………功率，电源 R．P．M……………………………………………………………………………………转/分4MW：MEGAWATT…………………………………………………………………………兆瓦 PARAMETER ………………………………………………………………………………参数 KW：KILOWATT……………………………………………………………………………千瓦 HIGH……………………………………………………………………………………………高 INTERMEDIATE………………………………………………………………………………中 LOW…………………………………………………………………………………………… 低 SILENCER ……………………………………………………………………消音器，报警消除 ZOOM……………………………………………………………………摄像机镜头，移向目标 SYSTEM………………………………………………………………………………………系统 BYPASS ……………………………………………………………………………………旁路 PIPE；TUBE………………………………………………………………………管道，管子 VALVE…………………………………………………………………………………… 阀门 MCS：MANAGMENT COMMAND SYSTEM………………………………管理命令系统UNIT ………………………………………………………………………………………单元 PRINT…………………………………………………………………………………………打印 SYMBOL…………………………………………………………………………………… 符号 CURVE，LINE……………………………………………………………………… 曲线，线 PANEL …………………………………………………………………………………………盘 DESK…………………………………………………………………………………… 台，桌 ROOM …………………………………………………………………………………………室 STATION…………………………………………………………………………………………站 PLANT………………………………………………………………………………………厂，站 I＆C：INSTRUMENT AND CONTROL………………………………………仪表与控制MODE ………………………………………………………………………………方式，模式 SET POINT ……………………………………………………………………………设定值 TRANSMITTIER ； TRANSDUCER………………………………………变送器；传感器 COMPUTER ………………………………………………………………………… 计算机 KEYBOARD……………………………………………………………………………… 键盘 CODE …………………………………………………………………………… 代码；编码 DATA …………………………………………………………………… 数据；文件；资料 DISK………………………………………………………………………………………… 磁盘 DIGIT…………………………………………………………………………………………数字5FIGURE………………………………………………………………………………………图示 STATIC ……………………………………………………………………………………静态 DYNAMIC ；DYNAMICAL…………………………………………………………… 动态TRIP ACKNOW…………………………………………………………………… 跳闸确认COLD START—UP ……………………………………………………………… 冷态启动 WARM START—UP…………………………………………………………………温态启动HOT START—UP……………………………………………………………………热态启动 RESET ………………………………………………………………………………………复位 SELECT ……………………………………………………………………………………选择 UNAVAIL……………………………………………………………………不允许(不能投用的) FAST …………………………………………………………………………………………快 SLOW …………………………………………………………………………………………慢 NORMAL ……………………………………………………………………………………正常 INCREASE…………………………………………………………………………………… 增加 DECREAS …………………………………………………………………………………减少 RUNBACK................................................................快速减负荷 STEAM TURBINE…………………………………………………………………… 汽轮机 TURBINE GENERATOR……………………………………………………………汽轮发电机组 STATOR………………………………………………………………………………………定子 ROTOR………………………………………………………………………………………转子 BEARING…………………………………………………………………………………… 轴承 SHAFT……………………………………………………………………………………………轴 BLADE…………………………………………………………………………………………叶片 BARRING……………………………………………………………………………………盘车 NOZZLE………………………………………………………………………………………喷嘴 FLANGE………………………………………………………………………………………法兰 SEAL…………………………………………………………………………………………密封 BEARING BRASS…………………………………………………………………………轴瓦 GEN. SHAFT SEAL &STATOR WIND……………………… 发电机密封及静子绕组 CURRENT………………………………………………………………………………… 电流 VOLTAGE………………………………………………………………………………… 电压 RESISTANCE……………………………………………………………………………… 电阻6REACTANCE……………………………………………………………………………… 电抗 INDUCTANCE…………………………………………………………………………… 电感 CAPACITANCE…………………………………………………………………………… 电容 AMPERE…………………………………………………………………………………… 安培 VOLT(V)…………………………………………………………………………………… 伏特 OHM………………………………………………………………………………………… 欧姆 WATT……………………………………………………………………………………… 瓦特 KILOWATT………………………………………………………………………………… 千瓦 MEGAWATT……………………………………………………………………………… 兆瓦 POWER…………………………………………………………………………………… 功率 FREQUENCE……………………………………………………………………………… 频率 SPEED……………………………………………………………………………… 速率，转速 WATTFUL POWER………………………………………………………………… 有功功率 REACTANCE CAPACITY…………………………………………………………………无功 LOAD……………………………………………………………………………………… 负荷 POWER FACTOR……………………………………………………………………功率因数 LOSS ………………………………………………………………………………………损耗 DIRECT CURRENT (DC)…………………………………………………………………直流 ALTERNATING CURRENT (AC)………………………………………………………交流 OVER CURRENT…………………………………………………………………………过流 OVVER VOLTAGE ………………………………………………………………………过压 OVERLOAD……………………………………………………………………………… 过载 EXCITE…………………………………………………………………………………… 励磁 LOAD FLOW …………………………………………………………………负荷潮流分布 TRANSMISSION………………………………………………………………………… 传输 BASE LOAD……………………………………………………………………………… 基荷 PEAK LOAD………………………………………………………………………………峰荷 CARRIER…………………………………………………………………………………… 载波 COMMUNICATION……………………………………………………………………… 通讯 TELEPHONE……………………………………………………………………………… 电话 LIGHT……………………………………………………………………………………… 照明 SIGNAL………………………………………………………………………………………信号7FIELD……………………………………………………………………………………… 磁场 LINE ……………………………………………………………………………………… 线路 GENERATOR ………………………………………………………………………… 发电机 AERIAL LINE……………………………………………………………………………架空线 CUTERNATOR…………………………………………………………………… 同步发电机 BUS………………………………………………………………………………………… 母线 EXCITOR………………………………………………………………………………… 励磁机 BUSBAR FRAME………………………………………………………………………母线架 MOTOR………………………………………………………………………………… 电动机 BUSCOUPLER…………………………………………………………………………… 母联 ASYNCHRONOUS MOTOR………………………………………………………异步电动机 INSULATOR…………………………………………………………………………… 绝缘子 BRUSH……………………………………………………………………………………… 电刷 BUSHING …………………………………………………………………………………套管 ARMATURE……………………………………………………………………………… 电枢 TRANSFORMER……………………………………………………………………… 变压器 COIL………………………………………………………………………………………… 线圈 MAIN TRANSFORMER STEP-UP TRANSFORMER………………………………主变 WINDING………………………………………………………………………………… 绕组 UNIT TRANSFORMER…………………………………………………………………单元变 CORE……………………………………………………………………………………… 铁芯 START UP TRANSFORMER…………………………………………………………启动变 POLE……………………………………………………………………………………… 电极 BACK UP TRANSFORMER…………………………………………………………备用变 PHASE…………………………………………………………………………………………相 POTENTIAL TRANSFORMER……………………………………………………电压互感器 PHASE ANGLE …………………………………………………………………………相角 CURRENT TRANSFORMER ……………………………………………………电流互感器 CONDUCTOR ………………………………………………………………………… 导体 CABLE ………………………………………………………………………………… 电缆 ANGLE OF LEAD………………………………………………………………………超前角 CIRCUIT BREAKER……………………………………………………………………断路器8ANGLE OF LAG………………………………………………………………………滞后角 SWITCH…………………………………v……………………………………………… 开关 NEUTRAL POINT………………………………………………………………………中性点 AUTOFORMER…………………………………………………………………………自藕变 GROUND(EARTH) ……………………………………………………………………… 接地 DISCONNECTOR ………………………………………………………………… 隔离开关 DIESEL GENERATOR …………………………………………………………柴油发电机 AUXI TRANSFORMER …………………………………………………………… 厂用变 SWITCHGEAR ……………………………………………………………………… 配电盘 BULB …………………………………………………………………………………… 灯泡 CLOSE …………………………………………………………………………………… 合闸 BATTERY………………………………………………………………………………… 电池 TRIP ……………………………………………………………………………………… 跳闸 CATHODE ……………………………………………………………………………… 阴极 RECLOSING ………………………………………………………………………… 重合闸 ANODE…………………………………………………………………………………… 阳极 AUTORECLOSING ………………………………………………………………自动重合闸 CHARGING EQUIPMENT ……………………………………………………… 充电设备 COMBINED RECLOSING ………………………………………………………综合重合闸BUS SECTION …………………………………………………………………… 母线分段 COMMON TRANSFORMER.................................................公用变 CONNECTING BREAKER.................................................联络开关 GAS ……………………………………………………………………………………… 瓦斯 PLUG …………………………………………………………………………………… 插头 ARC……………………………………………………………………………………………电弧 PLUG SOCKET……………………………………………………………………………插座 HARDWARE…………………………………………………………………………………硬件 CLOSED-LOOP ……………………………………………………………………………闭环 OPEN-LOOP ………………………………………………………………………………开环 BUS …………………………………………………………………………………………母线 DISK………………………………………………………………………………………… 磁盘 CPU(CENTARL PROCESSING UNIT)…………………………………………中心处理机9RETURN………………………………………………………………………………………回车 ABNORMAL CONDITION……………………………………………………………异常状态 DLS……………………………………………………………………………………数字逻辑站 DIS……………………………………………………………………………………数字显示站 DCS ………………………………………………………………………………数字控制站 CONFIGURATION……………………………………………………………结构，布置，外形 VDU …………………………………………………………………………………可见显示屏 SUPERVISORS DESK………………………………………………………………… 值长台 UNIT CONTROL DESK…………………………………………………………机组控制台EHV MIMIC PANEL ……………………………………………………电气高压模拟屏 COMMON SERVICES LOGIC SUITE……………………………………公用系统逻辑柜 CRT…………………………………………………………………………………………显示屏 ADS(ALARM DISPLAY SELECT PANELS)……………………………报警显示选择屏CIU ……………………………………………………………………………计算机接口单元 BATTERY BACKED CLOCK…………………………………………………电池备用时钟 INTERFACE…………………………………………………………………………………接口E.W.S. ………………………………………………………………………………工程师工作站 DAS…………………………………………………………………………………数据采集系统 CCR…………………………………………………………………………………………中控室 MCC…………………………………………………………………………………马达控制中心 I.C.S…………………………………………………………………………数字控制站终端模件 TSE…………………………………………………………………………………汽机监视设备 UIU……………………………………………………………………………操作员站接口单元 MFC……………………………………………………………………………… 多功能控制器 MONITERING………………………………………………………………………………监测 TRANSMITTIER ………………………………………………………………………变送器 AUTOMATION FOLLOWING………………………………………………………自动跟踪 EXCEPTION REPORT………………………………………………………………例外报告 THREE ELEMENT LEVEL CONTROLLER…………………………三冲量水位控制器TIME DELAY…………………………………………………………………………时间延迟 SCR CONTROLLER………………………………………………………可控硅整流控制器 DISTRIBUTED CONTROL SYSTEM…………………………………………分散控制系统10UN/NTERRUPTED POWER SUPPLY…………………………………………不间断电源 THERMOCOUPLES…………………………………………………………………… 热电偶 IND……………………………………………………………………………………… 指示器 RATED…………………………………………………………………………………….额定 PANEL……………………………………………………………………………………配电盘 SWITCHBOARD…………………………………………………………………………….开关柜LOCAL CONTROL ………………………………………………………………………..就地控制RELAY …………………………………………………………………………………继电器 SETING………………………………………………………………………………….定值 FUSE……………………………………………………………………………………..熔断器 GENERATER………………………………………………………………………………发电机 BATTERY…………………………………………………………………………………电池CHARGE …………………………………………………………………………………充电WINDING ………………………………………………………………………………绕组 AMORTISSEUR WINGING………………………………………………………………阻尼绕组CONDUIT PACKADE………………………………………………………………………控制箱 SHAFT……………………………………………………………………………………轴VENTILATING FAN ………………………………………………………………………通风扇 SPACER……………………………………………………………………………………垫片HARMONIC …………………………………………………………………………………谐波HARMONIC CONTENT………………………………………………………………………谐波成分 EXCITER……………………………………………………………………………………励磁机 INVERTER……………………………………………………………………………………逆变器 MOTOR...................................................................电动机 INDUCTION MOTOR.........................................................异步电动机 SQUIRREL INDUCTION MOTOR................................................鼠笼式异步电动机 BEARING ................................................................轴承BEARING SHELL...........................................................轴承套 ROLLING BEARING ........................................................滚动轴承SLIP RING...............................................................滑环 BRUSH...................................................................电刷EARTHING BRUSH..........................................................接地碳刷CABLE LUG...............................................................电缆鼻子 BOLT.....................................................................螺栓 NUT......................................................................螺帽 SPRING WASHER............................................................弹性垫圈 INSULATION................................................................绝缘子 INSULATION RESISTANCE.....................................................绝缘电阻 PIN INSULATION............................................................针式绝缘子 SEAL......................................................................密封圈 FILTER....................................................................过滤器 PRIME MOVER...............................................................原动机 DIESEL GENERATOR..........................................................柴油发电机 COMPRESSOR DRIVE..........................................................压缩机 POWER SYSTEM..............................................................电力系统 PHASE CONECTION...........................................................相序 MAINTENANCE ..............................................................维护 OVERHAUL..................................................................大修 RECONDITIONING............................................................修复 POSITIVE..................................................................正序 NEGATIVE..................................................................负序 ZERO.......................................................................零序 RATE OF HOUSE CONSUPTION...................................................厂用电率 GROUNDING ISOLATING SWITCH.................................................接地刀闸 DISCONNECTION..............................................................断线 EQUIPMENT FAULT............................................................装置故障 FAULT TRIP.................................................................事故跳闸 VOLTAGE REGULATOR..........................................................电压调整器 SENSING ...................................................................感应 CONPENSATION...............................................................补偿ZIG-ZAG....................................................................Z型接线 PARALLELING OPERATION......................................................并列运行 POWER GRID.................................................................电网 TORQUE.....................................................................转矩REVERSE POWER..............................................................逆功率 MONITOR....................................................................监视 CIRCULATING CURRENT........................................................环流LEADING POWER FACTER.......................................................超前的功率因数 LAGGING POWER FACTER.......................................................滞后的功率因数 INDUCTIVE..................................................................感性的 CAPACITIVE.................................................................容性的 CROSS CURRENT..............................................................涡流 SECONDARY CURRENT..........................................................二次电流 SECONDARY INTERCONNECTION LOOP.............................................二次回路 AUXILIARY CONTACT..........................................................辅助接点 THYRISTOR..................................................................可控硅整流器 SCR........................................................................半导体整流器 FIRING CIRCUIT..............................................................触发回路 VAIRIABLE FREQUENCY.........................................................变频 WAVEFORM....................................................................波形 DISTORTED WAVEFORM..........................................................畸波AIR GAP ....................................................................气隙 CENTRIFUGAL FORCE...........................................................离心力LINE TO LINE VOLTAGE........................................................线电压LINE TO NEUTRAL VOLTAGE.....................................................相电压 NAMEPLATE...................................................................铭牌 FLASHING....................................................................强励 RHEOSTAT....................................................................变阻器 JUMPER......................................................................短路片 CONNECTION..................................................................接线柱 DRIVE DISC..................................................................驱动轮FLY WHEEL...................................................................飞轮 COUPLING WHEEL..............................................................对轮 SHEAVE WHHEEL...............................................................皮带轮MEGOHMMETER.................................................................兆欧表 MULTIMETER..................................................................万用表 FREQUENCY...................................................................频率计 TACHOMETER..................................................................转速表 MEGGER......................................................................摇表 SNAP RING PLIER.............................................................卡簧钳 CLAMP ON AMMETER............................................................钳型电流表 ALLIGATOR...................................................................鳄鱼夹 TAPE........................................................................扎带 CRIMPING TOOL...............................................................绕线器 CABLE TIE...................................................................电缆卡子 STRIPPING TOOL..............................................................压线器 CONDUIT.....................................................................导线 FLEXIBLE CONDUIT............................................................软线 ARCING......................................................................拉弧 WRENCH......................................................................扳手Assemblie 集合，集结，组装comment 注释，评论standby 备用detector 探测器bracket 支架interlocks 互锁，连锁axial 轴向的accessory 附件fabrication 制作，构成，伪造物vent 通风孔，出烟孔，出口，放出，排出，发泄tank 桶，箱，罐diagram 图表corrosion 侵蚀，腐蚀状态concentration 集中，集合，浓缩，浓度recommend 推荐，介绍，托付，劝告abnormal and normal conditions 变工况和额定工况scale 范围，水垢，水锈，比例，刻度facilitate 推动，促进，使简化multistage 多级的remote control 遥控manhole 人孔，检修孔equivalent 等价物，相等的forging 锻造seat 部位，座socket welding 管座焊接enthalpy 焓estimate 评价，评估，估价parameters 参数，参量nominal 名义上的，额定的，标称的MS—Main Steam 主蒸汽Cycle循环Intercept截止Gage规，表，压力计Taps接头test wells测点插孔thermometer温度计margin余量friction losses磨擦损失solenoid螺线管modulat调整，调节criteria标准short 短路继电保护DIFFERENTIAL PROTECTION .................................差动保护STATOR GROUNDING /ZERO SEQUENCE PROTECTION...............定子接地/零序保护 WATER-BREAK PROTECTION...................................断水保护UNDER FREQUENCE PROTECTION...............................低频保护OVER VOLTAGE PROTECTION..................................过压保护COIL-TO-COIL PROTECTION..................................匝间保护EXCITATION LOSS PROTECTION...............................失磁保护LOSS SYNCHRONISM RAISING PROTECTION......................加速失步保护LOSS SYNCHRONISM REDUCING PROTECTION......................减速失步保护 CONVERSE POWER PROTECTION.................................逆功率保护STATOR ONE POINT PROTECTION...............................(发电机)转子一点接地保护 DISTANCE PROTECTION.......................................阻抗保护INCOMPLETE PHASE PROTECTION...............................非全相保护FUNCTION LOSS PROTECTION..................................失灵保护ABNORMAL OPERATION PROTECTION.............................误上电保护SYMMETRICAL OVERLOAD (STATE TIME ) PROTECTION.............对称过负荷(定时限)保护 SYMMETRICAL OVERLOAD (CONVERSE TIME ) PROTECTION.............对称过负荷(反时限)保护 ASYMMETRICAL OVERLOAD (STATE TIME ) PROTECTION.............不对称过负荷(定时限)保护 ASYMMETRICAL OVERLOAD (CONVERSE TIME ) PROTECTION.............不对称过负荷(反时限)保护 OVER EXCITATION (STATE TIME ) PROTECTION....................过激磁(定时限)保护OVER EXCITATION (CONVERSE TIME ) PROTECTION....................过激磁(反时限)保护 START AND STOP PROTECTION....................................起停机保护 TRANSFORMER PRESSURE PROTECTION..............................变压器压力释放保护ZERO SEQUENCE OVER CURRENT PROTECTION........................零序电流保护ZERO SEQUENCE CURRENT-VOLTAGE PROTECTION.....................零序电流—电压保护MAIN TRANSFORMER HEAVY GAS PROTECTION........................主变重瓦斯保护MAIN TRANSFORMER LIGHT GAS PROTECTION........................主变轻瓦斯保护FAN OF MAIN TRANSFORMER COOLER START PROTECTION..............主变通风保护BRANCH FAST IN LIMITED TIME PROTECTION ......................分支限时速断保护 COMPOUND VOLTAGE-CURRENT PROTECTION..........................复合电压—电流保护。