Speed Control and Governors 速度控制与调速器.pptVIP

Speed Control and Governors 速度控制与调速器 vocabulary governor speed adjustment optimum operation mechanical-hydraulic governor electro-hydraulic governor runaway speed servomotor centrifugal pendulum sensor flyball pilot valve servomechanism cam 调速器 速度调节器 最优工况 机械液压式调速器 电气液压式调速器 飞逸转速 接力器、侍服电机 离心飞摆 传感器 离心飞摆 引导阀 侍服机构 凸轮 vocabulary piston floating lever relay valve flywheel operating point isochronous feedback dashpot permanent magnet generator potential transformer speed signal generator transducer-operator 活塞 浮筒杆 配压阀 飞轮 工况点 等时的、同步的 反馈 缓冲器 永磁发电机 电压互感器 速度信号发生器 转换器操作 Translation Skill 词的增加 1、句子中某些成分前面出现过，后面往往省略，翻译时要补齐。 2、原句不增加词翻译会不明确。 the time required for the water flow 译为水流量变化需要的时间。增加变化一词，否则水流量需要的时间意思不通 3、表达复数、量词时 It seldom makes much difference to the user which winding or windings are tapped . 哪个绕组或哪些绕组上有分接头对用户而言并无多大区别。 Translation Skill 词的增加 4、句子翻译中表达的需要 Traditionally thought of as a cheap and clean source of electricity, most large hydro-electric schemes being planned today are coming up against a great deal of opposition from environmental groups and native people. 在翻译中增加了虽然……但是…… Translation Skill 词的省略 1、冠词。视具体情况而定，有时可不译。 2、形式词it。在句中起指代作用，可视情况不译。 3、反身代词。一般可不译。 4、重复的表达 coil and winding都是线圈的意思 The End * * Lesson Four At decreasing load,the speed tends to rise,and the governor has to close the wicket gates to such an extent that the torque created by the turbine equals the torque offered by the electrical load on the generator and the speed return to the desired synchronous speed. 当负荷减少时，转速升高，调速器把导叶关小到使得水轮机的机械转矩和电力负荷产生的电磁转矩相等的位置，这时转速回到期望的同步转速。 Sentence Explanations 1、that引导的定语从句修饰such an extent,翻译时定语前置 The governor system of the turbine acts as an opening，closing，and gate-setting mechanism for starting, stopping , and synchronizing the turbine which allows for matching output to the system load to maintain the system frequency and creates the necessary adjustment on Kaplan turbine blade angles for optimum operation at synchronous speed. 水轮机调速系统的作用类似于一个开启、