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庞巴迪CRJ200公务机机组操作手册 Bombardier CRJ-电源(12)

时间:2011-11-21 12:22来源:蓝天飞行翻译 作者:公务机
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Effectivity:
W Airplanes 7001to 7220
NOTE
In flight, both chargers will be shed during single generatoroperations. Ontheground,bothchargersare shedifexternalACpowerisconnectedandtheflapsare outofthe0detent,andthepassengerdooris closed.

Effectivity:
W Aircraft7221andsubsequent
NOTE
In flight, both chargers will be shed during single generatoroperations. Ontheground,bothchargersare shedifexternalACpowerisconnected,theflapsareout ofthe0detent,andthepassengerandservicedoorsare closed.

 

 

 

Flight Crew Operating Manual  MASTER 
CSP A-
013 


 ELECTRICAL  Vol. 1  07-
30-

DC Electrical System  REV 56, Jan 31/03 


DC Distribution System
Figure 07 ---30 ---1


Flight Crew Operating Manual  MASTER 
CSP A-
013 


 ELECTRICAL DC Electrical System  Vol. 1  07-
30-

REV 56, Jan 31/03 

BATTERY MASTER
Usedto connect theAPU DC SERVICE andmainbattery direct Usedto connecttheDC busses to thebatterybus.
service bus totheAPU
battery direct bus.
NOTE

Battery master should always beinthe ON positionin flight.
BUS TIE 1 or 2 Switch/Lights
CLOSED -
Come on
white to indicate that
the correspondingDC
bus has been

Essential Bus Tie

automatically tiedto
Switch/Light

the serviceTRUduring CLOSED -
Whenanabnormal pressedin, comescondition, or has been onwhite to indicatepressedin, to manually that ESS Bus hastie correspondingbus beenmanually tiedtothe serviceTRU.
to the serviceTRU
CLOSEDlight (white)

during aDC
comes on.

essentialTRUfailure. Correspondingutility
ESSTIE switch/lightbus is shedwhen can only be selected switch/light indicates manually.
CLOSED.
DC Electrical System
Figure 07---30---2

 

Flight Crew Operating Manual  MASTER 
CSP A-
013 


 ELECTRICAL  Vol. 1  07-
30-

DC Electrical System  REV 56, Jan 31/03 

C. External DC Power
The aircraft can beconnectedto 28 voltsDCfromanexternal receptacle located on the rightaftfuselagebelow No. 2engine. ExternalDCis usedforgroundoperations to save batterypower andcan be usedto starttheAPU. When externalDCis connected tothe aircraft, anexternalDCcontactoris energizedto providepowertotheAPU start contactor. Atthe same time, the AVAILlampinthe DC switchlightilluminates. Pressing theswitchlight closes two contactors toconnectthe externalDCtotheMain and APU batterydirectbuses andthe INUSElampinthe switchlightilluminates.
D. DC Distribution
DCpower isdistributedto the DCsystembyfive TRU’s. DCbus 1andDCUtilitybus 1 are poweredfrom TRU1. DCbus 2 andDCUtilitybus 2are poweredfrom TRU2. The DC essentialbusandbatterybuses are normallypoweredfromtheessential TRUs. The emergencybusis poweredfromthebatterybusandtheAPUbatterydirect bus. The service TRUpowers theDC service bus. In the eventthat anessentialTRU fails,the DCessentialbus and batterybus willremainpoweredfrom the operating essentialTRU. Ifboth essentialTRU’s fail, theessentialDCbusandbatterybus may stillbepoweredfrom theservice TRUby selectingtheESSTIE switchlight onthe electricalpanel. In the eventthat amain TRUfails, the respective DCtie willclose to maintain power tothe respective DCbus1/2from the service TRU. Atthe same time thecorrespondingutilitybus willbe SHED.
 
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