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1、1、电力系统电力系统power system大容量电力系统bulk power system电网power grid；power network火力发电厂thermal power plant；coal-burning power plant；fossil fuel power plant水电站hydroelectric power station核电站nuclear power plant抽水蓄能电站pumped storage power station变电站power substation用户变电站customer substation开关站 switch station升压step u
2、p降压 step down主网架backbone；network frame接入系统connection to the power grid联网interconnection特高压ultra-high voltage高压直流输电high-voltage direct-current transmission换流站converter station无穷大infinite等值电路equivalent circuit标么值per unit value实际值actual value基准值base value潮流power flow开环open-loop合环closed-loop有功active pow
3、er无功reactive power电压降voltage drop载流量current carrying capacity视在功率plex power；apparent power自然功率natural power损耗loss功率因数power factor超前lead滞后lag无功补偿reactive power penstaion感性补偿Inductive pensator容性补偿Capacitive pensator静止无功补偿static var pensation正序positive sequence负序negative sequence零序zero sequence电感induct
4、ance电容capacitor电抗reactance电阻resistance电纳susceptance电导conductance导纳admittance阻抗impedance正弦稳态sinusoidal steady state暂态transient state次暂态subtransient state绕组winding抽头tap有载on-load无载off-load中性点netural电压比voltage ratio容量比capacity ratio过电压overvoltage ； surge负荷中心load center峰荷peak load基荷base load居民负荷residenti
5、al load商业负荷mercialload甩负荷load shedding过载；过负荷overload负荷特性load characteristics负荷曲线load curve负荷率load factor发电power generation输电power transmission配电power distribution用电power utilization用电量power consumption停电blackout电力系统稳定power system stability功角稳定angle stability电压稳定voltage stability扰动disturbance同步synchr
6、onism不稳定instability可靠性reliability收敛converge定子stator转子rotor励磁系统excitation system空载no-load惯量inertia三相对称故障balanced three phase fault单相接地故障single line to ground fault短路short-circuit开路open-circuit接地grounding临界的critical平衡equilibrium感应电动机induction motor振荡oscillation谐波harmonic电磁感应electromagnetic induction充电
7、功率charging capacity出线outgoing line进线ining line架空线路overhead line电缆cable建设规模construction scale线路输送容量transmission capacity调相调压adjusting the voltage phase and magnitude负荷预测load forecasting电力系统规划power system planning输电规划transmission planning电磁环网electromagnetic loop network经济电流密度economical current density
8、解列disconnection；power system separation运行方式operating mode电力电量power load and consumption容载比capacity and load ratio经济比较economic parison导线截面选择selection of conductor cross-section选址选线selection of substation site and line corridor输变电工程transmission and distribution project电气主接线Electrical Primary System常用电
9、力专业英语（1） 元件设备三绕组变压器：three-column transformer ThrClnTrans 双绕组变压器：double-column transformer DblClmnTrans电容器：Capacitor并联电容器：shunt capacitor电抗器：Reactor母线：Busbar输电线：TransmissionLine发电厂：power plant断路器：Breaker刀闸(隔离开关)：Isolator分接头：tap电动机：motor（2） 状态参数有功：active power无功：reactive power电流：current 容量：capacity电压：
10、voltage档位：tap position有功损耗：reactive loss无功损耗：active loss功率因数：power-factor功率：power功角：power-angle电压等级：voltage grade空载损耗：no-load loss铁损：iron loss铜损：copper loss空载电流：no-load current 阻抗：impedance正序阻抗：positive sequence impedance负序阻抗：negative sequence impedance零序阻抗：zero sequence impedance电阻：resistor电抗：react
11、ance电导：conductance电纳：susceptance无功负载：reactive load 或者QLoad有功负载: active load PLoad遥测：YC(telemetering)遥信：YX 励磁电流(转子电流)：magnetizing current定子：stator功角：power-angle上限:upper limit下限：lower limit并列的：apposable高压: high voltage低压：low voltage中压：middle voltage 单位标准：电能： 千瓦时 kW.h k,h小写W大写有功功率 千瓦 kW k小写W大写无功功率 千乏 k
12、var k,v,a,r均小写视在功率 千伏安 kVA k小写V、A大写电压 千伏 kV k小写V大写长度 千米 km k,m均小写电流 安培 A A大写 电力系统 power system发电机 generator励磁 excitation励磁器 excitor电压 voltage电流 current母线 bus变压器 transformer升压变压器 step-up transformer高压侧 high side输电系统 power transmission system输电线 transmission line固定串联电容补偿fixed series capacitor pensatio
13、n稳定 stability电压稳定 voltage stability功角稳定 angle stability暂态稳定 transient stability电厂 power plant能量输送 power transfer交流 AC装机容量 installed capacity电网 power system落点 drop point开关站 switch station双回同杆并架 double-circuit lines on the same tower变电站 transformer substation补偿度 degree of pensation高抗 high voltage shun
14、t reactor无功补偿 reactive power pensation故障 fault调节 regulation裕度 magin三相故障 three phase fault 故障切除时间 fault clearing time极限切除时间 critical clearing time切机 generator triping高顶值 high limited value强行励磁 reinforced excitation线路补偿器 LDC(line drop pensation)机端 generator terminal静态 static (state)动态 dynamic (state)单机无穷大系统 one machine - infinity bus system机端电压控制 AVR电抗 reactance电阻 resistance功
