电力系统专业英语.docx

1、电力系统专业英语电力系统专业英语 voltage regulation 电压调节 the secondary winding 二次侧绕组 transformer 变压器 generator 发电机 alternating current 交流电AC direct current 直流电DC power grid/network 电网 power system 电力系统 synchronous electric motor 同步电机 asynchronous electric motor 异步电机 at 11 kV a protracted decision-making process thr

2、ee-phase transmission line 三相输电线路 as opposed to 而不是 high voltage direct current 高压直流HVDC series-connected 级联 reliability 可靠性 rectifier 整流器 load flow 潮流 load flow study 潮流计算 planning of power system 电力系统控制 remote control 远方控制 switchgear 开关 with respect to 与。相关 at constant level 在固定等级 electric power 电

3、功率 pump 泵 machinery 机械 power adapter 电源适配器 brushless machinery 无刷电机 Power can be transmitted over long distances with less loss at higher voltages. be distant from 远离 step-up transformer 升压变压器 step-down transformer 降压变压器 appliances 用电设备 One of the main difficulties in power systems is that the amoun

4、t of active power consumed plus losses should equal the active power produced/generated. deviation 偏离 nominal frequency 标称频率 ancillary 辅助的 transmission system 运行调度部门 coal-fired power stations fuel cells 燃料电池 photovoltaic cells 光伏电池 rotor 转子 spin 旋转 electric field 电场 magnetic field 磁场 turbo generator

5、 a wide range of steam heated using fossil fuel 化石能源 nuclear energy 核能 hydroelectric power 水能 multiple 多端的 renewable 新能源 deliver energy 输送电能 delivery (n.) deliverable (adj.) the net amount 净值 in line with 与。保持一致 real/active power 有功功率P reactive power 无功功率Q our-of-sync 失去同步 capacitor 电容器 reactor 电抗器

6、power quality 电能质量 overvoltage 过电压 undervoltage 低电压 frequency regulation 频率调节 adversely 相反地 sag 骤降 dip 凹陷 swell 骤增，膨胀 transient overvoltage暂态过电压 power factor 功率因数 power factor correction 功率因数调节 conductor 导体 resistivity 电阻率 resistance 电阻 current carrying capacity 载流能力 overhead line 架空线 underground ca

7、ble 地缆 inductive 感性的 lead 超前 lag 滞后 The current lags behind the voltage by 90 degree. substation 变电站 light/heavy load 轻载/重载 surge impedance 特征阻抗 reactors installed in series fault current limiter 限流器 in series 串联 in parallel 并联 thyristor 晶闸管 switch in/out 投切 refined response 精细化反应 compensator 补偿器 po

8、wer electronics 电力电子 in the order of 以。量级 high-powered 大功率的 protective devices 保护装置 fuse 熔丝 threshold 阈值 arc 电弧 interrupt the circuit 开断电流 circuitry电路 trip 跳闸 Supervisory Control And Data Acquisition generator output 发电机出力 electric power system 电力系统 maintenance 维护，检修 adjustment 调整 distribution 配电 ap

9、parent power 视在功率|S| SCADA systems a linear/nolinear load 线性/非线性负荷 sinusoidal 正弦的 resistive 阻性的 reactive 感性的 our of/in phase 不同相/同相 resistance 电阻 inductance 电感 capacitance 电容 the magnitude of the vector sum 矢量和的大小 root-mean-square 均方根 inductor 电感器 complex power 复功率S phase of voltage relative to curr

10、ent 相角 watt 功率单位W volt-ampere reactive 复功率单位var volt-ampere 视在功率单位VA imaginary axis 虚轴 circulating current 循环电流 phase angle 相角 abbreviate 。 as 。 把。简称为 cancel each other out 相互抵消 generation system 发电系统 distribution system 配电系统 transmission system 输电系统 element 元件 inductive/capacitive element 感性元件/容性元件

11、 periodic reversal 周期性的反向 coil 线圈 absorb/generate 吸收/产生 voltage level 电压水平 Grid Code 电网规程 rated power 额定功率 the system operator 调度系统 perform switching actions Generator_MVARs+System_gain+Shunt_capacitors=MVAR_Demand+Reactive_losses+Shunt_reactors shunt 并联的 unbalanced polyphase system 不平衡的多项系统 A perfe

12、ct resistor stores no energy. instantaneous power 瞬时功率 time varying 时变的 apply to 适用于 applied-voltage 施加的电压 given-voltage 给定的电压 harmonic content 谐波成分 harmonics 谐波 trivial 微不足道的 Harmonic currents will reduce the power factor. filter 滤波器 power converter 电源转换器 relay protection 继电保护 integral 积分的 componen

13、t 元件，分量 Resistors act to reduce current flow. themistor 热敏电阻 varistor 压敏电阻 trimmer 微调电容器 photoresistor 光敏电阻 potentiometer 电位计 CT:Current Transformer 电流互感器 PT:Potential Transformer 电压互感器 The current though a resistor is in direct proportion to the boltage across the resistors terminals.通过电阻的电流正比于电阻两端

14、的电压 name after 以。命名 ratio 比值 be equivalent to等值 ten to minus three 10-3 ten to three 103 conductance 电导 resistance 电阻 is as follow/are as follows Ohms law states that the voltage across a resistor is proportional to the current. be inversely proportional to 反比 proportionality 比例 In a series configur

15、ation, the current through all of the resistors is the same, but the voltage across each resistor will be in proportion to its resistance. be subject to 服从。规则 Resistors in a parallel configuration are each subject to the same potential difference, however the currents through them add. The greater t

16、he number of resistors in parallel, the loss overall resistance they will collectively generate, and the resistance will never be higher than that of the resistor with the lowest resistance in the group. wire 导线 induce 感应出 electromagnetic induction 电磁感应 be characterized by 以。为特征 magnetic core 磁芯 block 阻碍，街区 block the flow of AC current while allowing DC to pass 通直阻交 choke 扼流槽，抗流器 magnetic flux 磁通