电机专业英语词汇全

Droop Load Sharing Droop load sharing is a method of making two or more parallel generator sets share a system kW load. This is accomplished by having each governor control adjusted so that the sets have the same droop (reduction of speed). Typical droop is two cycles in frequency from no load to full load. 转速降负荷分配 转速降负荷分配是两台或多台机组负荷分配的一种方法。这通过每台并联机组调速器具备 相同的转速降。从空载到满载转速降一般为两赫兹。 Efficiency (EFF) Efficiency is the ratio of energy output to energy input, such as the ratio between the electrical energy input to a motor and the mechanical energy output at the shaft of the motor. 效率 效率是输出能量与输入能量的比率，例如输入到电动机的电能与电机轴承输出的机械能的之间的比 率。
First Start Sensor A first start sensor is an electronic device within some paralleling equipment that senses generator set and bus voltage and frequency, and determines whether or not a generator set is the first unit ready to close to the bus following a call to start under "black start" conditions. 首启动传感器 首启动传感器是应用于某些并联设备中的电子装置，功能是感知发电机组和母排的电压、频 率，判断哪个机组在接到“黑启动”信号后第一个可以合到母排。
different series points来自百度文库in the electrical system. The differential relay compares the currents and picks up when there is a difference in the two, which signifies a fault in the zone of protection. These devices are typically used to protect windings in generators or transformers. 差动继电器 作为保护装置，差动继电器由位于系统中两个不同位置的电流互感器提供反馈信息。差动继电 器对电流进行比较，如果存在不同则表示受保护区域内有故障存在。这些装置常被用于保护发电机或变压 器的线圈。
Distribution Circuit Breaker A distribution circuit breaker is a device used for overload and short current protection of loads connected to a main distribution device. 配电线路开关 配电线路开关是给连接在主配电设备上的负荷提供过载和短路保护的装置。
induction machine 感应式电机 horseshoe magnet 马蹄形磁铁 magnetic field 磁场 eddy current 涡流 right-hand rule 右手定则 left-hand rule 左手定则 slip 转差率 induction motor 感应电动机 rotating magnetic field 旋转磁场 winding 绕组 stator 定子 rotor 转子 induced current 感生电流 time-phase 时间相位 exciting voltage 励磁电压 solt 槽 lamination 叠片 laminated core 叠片铁芯 short-circuiting ring 短路环 squirrel cage 鼠笼 rotor core 转子铁芯 cast-aluminum rotor 铸铝转子 bronze 青铜 horsepower 马力 random-wound 散绕 insulation 绝缘 ac motor 交流环电动机 end ring 端环 alloy 合金 coil winding 线圈绕组 form-wound 模绕 performance characteristic 工作特性 frequency 频率 revolutions per minute 转/分 motoring 电动机驱动 generating 发电 per-unit value 标么值 breakdown torque 极限转矩 breakaway force 起步阻力 overhauling 检修 wind-driven generator 风动发电机 revolutions per second 转/秒 number of poles 极数 speed-torque curve 转速力矩特性曲线
Emergency System An emergency system is independent power generation equipment that is legally required to feed equipment or systems whose failure may present a life safety hazard to persons or property. 应急系统 应急系统是指根据相关法规要求，为那些可能会危及生命安全或造成财产重大损失的设备或系统 提供电源的独立发电设备。
Digital Master Control (DMC) This device is designed to control the power systems in a facility. It is offered as an option on Cummins switchgear. 数字主控制器 数字主控制器是用于控制设备电力系统的装置。在康明斯开关柜中数字主控制器是选配件。
Feeder Circuit Breaker See Distribution Circuit Breaker. 馈电线路开关 见“配电线路开关”。
Fiber Optic Cable A technology using glass or plastic threads (fibers) to transmit data. A fiber optic cable is a bundle of either glass or plastic threads capable of transmitting messages modulated into light waves. Typically, fiber optic cable has greater bandwidth allowing them to carry more data than metal wires. Fiber optic cable is lighter and less susceptible to interference than metal wires. Also, data can be transmitted digitally rather being transformed into analog data for transmission as is the case with metal wires when used for computer data transmission. Fiber optics are becoming increasingly more common for use with Local-Area Networks (LANs). 光缆 光缆是指使用玻璃或塑料束（光纤）来传输数据。光纤是一束可以用来传递被调制成光波的信息的玻 璃或塑料管。与金属电线相比，光缆的特点是带宽更大，质量更轻，可以传导更多数据，抗干扰性能更好， 并且数据是以数字形式而不是模拟形式传播。光缆在局域网领域的使用越来越普遍。
Energy Energy is manifest in forms such as electricity, heat, light and the capacity to do work. It is convertible
from one form to another, such as in a generator set, which converts rotating mechanical energy into electrical energy. Typical units of energy are kW/h, Btu (British thermal unit), Hp/h, ft/lbf, joule and calorie. 能量 能量以电能、热能、光能等形式存在，可以做功，也可以从一种形式转换为另一种形式，例如发电机 组能把机械能转变为电能。经常用的能量单位有： 千瓦/小时、英国热量单位、马力/小时、焦耳、卡等。 Fault A fault is any unintended flow of current outside its intended circuit path in an electrical system. 故障 故障是指在电力系统中任何电流跑出正常电路以外的情况。
Direct Current (DC) Direct current is current with no reversals in polarity. 直流 直流是指没有正负极性往复变化的电流。
Distributed Control System A collection of nodes that interact to control a system whose components are spread out over some distance. Each node has intelligence for operating its own particular component of the system. Different parts of the system communicate status and control information with one another to form a distributed control system. Typically, they communicate on a peer-to-peer level. This is different from a type of system where all control and interaction between components is dictated by one central control. This is a common master/slave arrangement. 分布式控制系统 分布式控制系统是由分布在不同位置但互相作用的节点构成。每个节点具有智能，可以对 各自系统操作控制。系统不同部分之间的通信状态和控制信息交流构成了分布式控制系统，这种系统内的 通信是点对点方式，有别于所有的控制以及组成部分之间的通信都由一个中央控制器完成的系统。