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航空工程英语基础 ESSENTIAL ENGLISH OF AERONAUTICAL ENGINEERING

时间:2011-06-14 21:26来源:蓝天飞行翻译 作者:航空 点击:


LESSON 11 ELECTRICAL POWER电源系统
一、单词:
电源  Electrical power 不同的  Various 电瓶  battery
发电机  Generator 地面保障设备  Ground support equipment 交流  Alternating current
驱动  Drive 插座  Receptacle 转换  Convertion
分布  Distribute 产生  Produce 主要是  Primarily
额定容量  Is rated at 千伏安  Kilovolt ampere 汇流条  Slip-ring
换向器  Commutator 电刷  Brush 励磁器  Exciter
完整的  Complete 整流器  Rectifier 磁极  Pole
磁场  Field 转子  Armature 装有  Is supplied with
调节器  Regulator 引出  Develop 送入  Fed into
定子  Stator 恒速传动装置  Constant speed drive 附件齿轮箱  Accessory gearbox
关键的  critical 缺少  absence 变压器  transformer
备份的  backup

二、TEXT:
(1) the electrical power is used for the control, operation, and indication of the various airplane systems on the ground and inflight. The electrical power is obtained from the battery, generator and ground support equipment. Is is controlled and monitored prior to distribution as 115 volt ac, 28 volt ac and 28 volt dc supply to using systems.
电源系统用于在飞行或地面飞机系统的控制、操作及指示。电源来源于电瓶、发电机及地面电源设备。它被控制并监控优先分配成 115V交流、28V交流及 28V直流提供给用户系统。
(2) The alternating current power is supplied by two engine driven generators for normal infligt operation. A generator, driven by the auxiliary power unit, can supply all power for ground or flight operation。 power can be supplied on the ground through the external power (ac) receptacle. The dc power is supplied from the battery or conversion from the ac power.

正常飞行时,交流电由两台发动机驱动发电机提供。一台发电机由辅助动力装置驱动,能够在飞行操作中提供各种电源。飞机在地面时可通过地面电源插头由地面电源供电。直流电由电瓶或交流电转换而来。

(3) The ac and dc power is distributed to the various system through the left and right load control centers in the flight compartment. The control and indication of the electrical system is from the P5 overhead panel in the flight compartment.

直流及交流电源在驾驶舱中通过左右 LOAD控制中心被分配到不同系统中去。电源系统的指示及控制位于驾驶舱 P5顶置面板上。

(4) The generators driven by the engine produce the ac power required by the airplane systems primarily for flight operation. The ac generator is rated at 50 kilovolt –amperes, 120/208 volts, 400Hz . The unit is without slip-rings.commutator, or brushes on either the main generator or the exciter. A complete generator assembly consists of an exciter generator, a rotating rectifier and a main gererator.


发电机由发电机驱动产生飞行操作中各系统所需的交流电。交流发电机额定功率为 50KV/A,120/208伏,400Hz,在每个主发电机或励磁器上没有汇流坏、换向器及电刷。一个完整的发电机组件上包括一个
激励发电机,一个转子整流器及主发电机。

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