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庞巴迪CRJ200公务机机组操作手册 Bombardier CRJ-电源(13)

时间:2011-11-21 12:22来源:蓝天飞行翻译 作者:公务机
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The Main batterydirectbus, APUbatterydirectbus, and the emergencybus are allhot buses (they are continuouslypoweredatalltimes fromthebatteries). Whenthe BATTERYMASTERswitchis selectedON, an input signalis suppliedto thetwo power controllers (PC). Thepower controllers monitorforACpower, andifACpoweris not available then the controllers willconnecttheirrespective batteries tothebatterybus. When ACpower isavailable, forthe TRU’s to powerthe DCsystem, the power controllers willdisconnectthebatteries from thebatterybus. Eachbatterydirectbus can power theDCbatterybus. BoththebatterybusandtheAPUbatterydirectbus power theDC emergencybus. TheDC service busis normallypoweredfromthe service TRU. IftheDCSERVICE switch ontheelectricalpanelis selectedON, theDC servicebus willbe poweredfromthe APUbatterydirectbus.
NOTE
Although there is only one battery bus, it is split betweencircuitbreakerpanel1and2andisreferred toastheleftand rightbatterybus.

In flight, ifthe power controllers sense acomplete loss ofACpower, theywill reconnect thebatteries tothebatterybusandatthe same time theDC emergencyties willclose toconnectthebatterybustotheDCessentialbus. Once theADGbusis online to power essentialTRU1 and the DC essentialbus, the batteries willact as abackup power source totheDC essentialbus.
Flight Crew Operating Manual  MASTER 
CSP A-
013 

Vol. 1
07-
30-
6
ELECTRICAL

REV56,Jan 31/03
DC Electrical System

<0039> <0006>
Primary Page

<0039>
<0039>

Status Page
DC Electrical System EICAS Indications <MST> Figure 07---30---3
Flight Crew Operating Manual
MASTER CSP A-
013


 ELECTRICAL  Vol. 1  07-
30-

DC Electrical System  REV 56, Jan 31/03 

 

CHARGER (White) <0039> CHARGER (Amber)
Indicates that the corresponding charger is not charging.
NOTE

During normaloperation, whenthe DC emergency bus is poweredby boththe battery bus andtheAPU battery direct bus, theDC emergency bus outlineand respective flow lines are not displayed.
DC ELEC Page
EICAS Display
Center Instrument Panel


DC Emergency Bus Flow Lines


Green -
DCemergency bus is poweredthrough the respective flow line only, or the respective feeder bus is available tofeedthe failedDC emergency bus.

 

White -
DC emergency bus is not powered throughthe respective flow line.


DC Emergency Bus Outline


Green -
DCemergency bus is poweredby only oneof the following:

 

Battery bus or,

 

APUbattery direct bus.

 

 

Amber -
DCemergency bus is not powered


EICAS BUS BAR OUTLINE  GREEN  AMBER  WHITE  HALF-
INTENSITY MAGENTA 
 
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