(EMB145)Generator Line Contactor

题目

(EMB145)Generator Line Contactor闭合的条件是()

  • A、只有发电机的电压
  • B、发电机电压和速度
  • C、只有发电机的速度
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相似问题和答案

第1题:

describe the procedure to start an emergency generator ?


正确答案:1) to check the lube oil level in the crankcance and fuel oil level in the tank . 2) to see whether there is any leakage . 3) to check the air pressure if the generator is air started model ; and to check the battery voltage to see whether it is normal if the generator is the battery started model 4)also to make sure there are no obstacles around the machine .

第2题:

(EMB145)EMB145飞机的襟翼系统是使用()作为操作动力。

  • A、液压
  • B、电源
  • C、气源

正确答案:B

第3题:

In a modern three-phase A.C. synchronous brushes generator, the excitation winding is on the rotor. That means .

A.The generator need not excitation.

B.The winding on the rotor is for inputting excitation current.

C.There are three phase windings on the rotor.

D.The generator has no brushes.


正确答案:B

第4题:

(EMB145)EMB145的主电源是()

  • A、115 V AC 400HZ
  • B、28 V DC
  • C、28 V AC

正确答案:B

第5题:

英译汉:contactor


正确答案: 接触器

第6题:

ConErr165(DCbus undervoltage at Line Contactor closed)加载到网侧变频器,直流母排电压不能到达1050VDC,一般为()问题,直接更换。

  • A、网侧变频器;
  • B、机侧变频器;
  • C、发电机;
  • D、Crowbar

正确答案:A

第7题:

蒸汽发生器 steam generator


正确答案: 将反应堆冷却剂热量传给二回路给水并产生蒸汽的设备。

第8题:

The frequency of an AC generator is controlled by the ___.

A.rheostat

B.governor

C.exciter

D.capacitor


正确答案:B

第9题:

英译汉:generator


正确答案: 发电机

第10题:

(EMB145)EMB145选装发动机的厂家是()

  • A、RR(罗罗)
  • B、GE(通用电气)
  • C、PW(普惠)

正确答案:A

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