发电机专业英语术语标准翻译资料大全（中英文对照D.E字部)
捷力动力网
武汉捷力
2007-9-9 0:00:27
D
Dead Bus
Dead Bus refers to the de-energized state of the power connections between outputs of paralleled generator sets. The term bus in this usage can either be rigid solid bus bars or insulated flexible cables. 不带电母排 不带电母排是指连接并联发电机组输出之间的电力连接处于不带电状态。这里所指的母排可能是坚硬的实心汇流条，也可能是柔韧的绝缘电缆 。
Delta Connection
Delta connection refers to a three phase connection in which the start of each phase is connected to the end of the next phase, forming the triangle-shaped Greek letter Delta. The load lines are connected to the corners of the triangle. 三角形连接 三角形连接是指在三相连接中，相临两相首尾相连，构成三角形的希腊字母Delta，负荷线连接在三角形的角上。
Differential Relay
A differential relay is a protective device that is fed by current transformers located at two different series points 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。
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。
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。
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。
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
E
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。
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。
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。
文章来源:捷力动力网:::www.jldl.net:::发电机发电机组设计制造生产销售及专业服务
Dead Bus
Dead Bus refers to the de-energized state of the power connections between outputs of paralleled generator sets. The term bus in this usage can either be rigid solid bus bars or insulated flexible cables. 不带电母排 不带电母排是指连接并联发电机组输出之间的电力连接处于不带电状态。这里所指的母排可能是坚硬的实心汇流条，也可能是柔韧的绝缘电缆 。
Delta Connection
Delta connection refers to a three phase connection in which the start of each phase is connected to the end of the next phase, forming the triangle-shaped Greek letter Delta. The load lines are connected to the corners of the triangle. 三角形连接 三角形连接是指在三相连接中，相临两相首尾相连，构成三角形的希腊字母Delta，负荷线连接在三角形的角上。
Differential Relay
A differential relay is a protective device that is fed by current transformers located at two different series points 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。
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。
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。
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。
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
E
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。
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。
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。
文章来源:捷力动力网:::www.jldl.net:::发电机发电机组设计制造生产销售及专业服务
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