《航线CRJ-200 Electrical System.ppt》由会员分享，可在线阅读，更多相关《航线CRJ-200 Electrical System.ppt（104页珍藏版）》请在三一文库上搜索。
1、ELECTRICAL,1,ELECTRICAL SYSTEM,CRJ 200,ELECTRICAL,2,ELECTRICAL CONFIGURATION,AC CB PANELS,DC CB PANELS,ELECTRICAL,3,Electrical Power Sources,2 Engine-Driven AC Generators 1 APU-Driven AC Generator 1 Emergency Backup Air-Driven Generator 1 AC Ground Power Receptacle,1 DC Main Battery 1 DC APU Battery
2、 5 Transformer/Rectifier Units (TRUs) 1 DC Ground Power Receptacle,AC,DC,ELECTRICAL,4,FIGHT DECK SWITCHES,FLIGHT DECK SWITCHES,ELECTRICAL,5,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,ESS
3、TIE,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,6,SYSTEM MONITORING,ELECTRICAL,7,Plan of Attack,AC Power Sources and Switches AC Distribution (buses) DC Power Sources and Switches DC
4、Distribution Degraded Electrical,ELECTRICAL,8,ENGINE-DRIVENGENERATORS,115 VOLT3 PHASE400 HZ IDG/CSD 30 kVA25 kVA above FL350 GCU,AC COMPONENTS,ELECTRICAL,9,ENGINE-DRIVENGENERATORS,NOTE: ANY ONE OF THE OF THE GENERATORS CAN SUPPORT THE ENTIRE SYSTEM,AC COMPONENTS,ELECTRICAL,10,IDG Disconnect Manual*
5、Low oil pressure* High oil temp Automatic Gen Over temp Over torque - Shears the shaft,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RES
6、ET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,11,IDG Disconnect Manual* Low oil pressure* High oil temp Automatic Gen Over temp Over torque - Shears the shaft,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,AL
7、TN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,12,FAIL Bus Fault Gen over current,No Reconnect,ELECTR
8、ICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRI
9、CAL,13,FAIL Bus Fault Gen over current,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC
10、SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,14,OFF Disables the auto transfer system,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,O
11、FF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,15,APU Generator,115V/3 Phase/400 HZ- Rated at 30 KVA up to FL 370 No IDG/CSD GCU Protection Over and under voltage Over and under frequency,ELECTRICAL,16,Powers:Vacuum Clean
12、erToilet PumpGalley NOTE: Power source must be either GRND or APU.,SERVICE BUS,ELECTRICAL,17,Powers:Vacuum CleanerToilet PumpGalley NOTE: Power source must be either GRND or APU.,SERVICE BUS,GROUND POWER,0,0,0,0,ELECTRICAL,18,EXTERNAL AC POWER,NOTE: Flight Deck switchpowers all AC,ELECTRICAL POWER S
13、ERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,19,
14、EXTERNAL AC POWER,POWER HAS NOT BEEN CONNECTED OR POWER HAS WRONG VOLTAGE OUT OF PHASE WRONG FREQUENCY,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,O
15、FF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,AVAIL,ELECTRICAL,20,EXTERNAL AC POWER,POWER HAS BEEN CHECKED BY ONBOARD COMPUTER AND THE VOLTAGE, PHASE, FREQUENCY OF THE POWER SOURCE ARE ALL OK BUT POWER HAS NOT BEEN CONNECTED TO AIR
16、CRAFT SYSTEM,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OF
17、F ON,APU GEN,DC,AC,AVAIL,AVAIL,ELECTRICAL,21,ELECTRICAL POWER SERVICES,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF O
18、N,OFF ON,APU GEN,AC,DC,AVAIL,AVAIL,IN USE,IN USE,EXTERNAL AC POWER,POWER IS AVAILABLE BUT NOT BEING USED BY AIRCRAFTS ELECTRICAL SYSTEM,IN USE,ELECTRICAL,22,EXTERNAL AC POWER,POWER IS BEING USED BY AIRCRAFTS ELECTRICAL SYSTEM,ELECTRICAL POWER SERVICES,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER
19、,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,AC,DC,IN USE,AVAIL,AVAIL,IN USE,IN USE,ELECTRICAL,23,APUSERVICE BUS,PowersSERVICE CONFIGURATIONVacuum
20、CleanerToilet PumpGalley Only used when no other AC power source selected,CABIN CREW STATION,EXTERNAL STATION,1,2,ELECTRICAL,24,APUSERVICE BUS,PowersSERVICE CONFIGURATIONVacuum CleanerToilet PumpGalley Only used when no other AC power source selected,CABIN CREW STATION,EXTERNAL STATION,1,2,ELECTRICA
21、L,25,EXTERNALNOSE GEAR DOOR,Powers SERVICE CONFIGURATION onlyAC SERVICE BUSVacuum CleanerToilet Pump2 AC UTILITY BUSESGalleyBattery Chargers,THIS SWITCH OPENS THE NOSE GEAR DOORS TO PERMIT THE CREW TO REMOVE/INSTALL THE IDG LOCK PIN AND INSPECT THE NOSE WHEEL WELL.,ELECTRICAL,26,EXTERNALAC PUSHBUTTO
22、N,Powers SERVICE CONFIGURATION onlyAC SERVICE BUSVacuum CleanerToilet Pump2 AC UTILITY BUSESGalleyBattery Chargers,PRESSING THIS BUTTON WITH EITHER APU-AC GEN OR AC GROUND POWER SHUTS DOWN ALL BUSES EXCEPT AC SERVICE BUS VACUUM CLEANERS EXTERNAL POWER IS AUTOMATICALLY DISCONNECTED FROM THE AIRCRAFT.
23、,ELECTRICAL,35,AirDrivenGenerator MANUAL DEPLOY-MENT HANDLE,ELECTRICAL,36,AIR-DRIVEN GENERATOR,115V/3 Phase/400 Hz 15 kVA Auto deploys w/totalAC power failure Constant Speed Prop Powers:AC Essential Bus3B Hydraulic PumpEICAS (volt and freq),EXTENDED,RETRACTED,ELECTRICAL,37,AIR-DRIVEN GENERATOR,ONCE
24、IT HAS BEEN EXTENDED IT CAN NOT BE RETRACTED.,EXTENDED,RETRACTED,ELECTRICAL,38,After ADG is deployed, if any other AC Generator becomes operational, load is automatically transferred from ADG to operatingenerator.,AFTER THE ADG IS DEPLOYED SHOULD A GENERATOR BE BROUGHT BACK ON-LINE THE ELECTRICAL LO
25、AD IS AUTOMATICALLY TRANSFERRED FROM THE ADG TO THE OPERATING GENERATOR. PRESSING THE “ PWR TXFR OVERRIDE “ WILL STOP THIS FROM HAPPENING.,ELECTRICAL,39,AC DISTRIBUTION,6 AC Busses SPLIT System AUTO LOAD TRANSFER AUTO SHEDUtility Buses w/singlegenerator operation,ELECTRICAL,40,LOAD DISTRIBUTION,ELEC
26、TRICAL,41,AUTOMATIC LOAD SHEDDING SHOULD THE IDG DISCONNECT THE ELECTRICAL SYSTEM WILL AUTOMATICALLY SHED UTILITY BUS 1 AND UTILITY BUS 2 AND WILL BE SHOWN AS INDICATED TO THE LEFT DISPLAY.,FOR SOME REASON THE IDG HAS DISCONNECTED GEN 1 FROM THE ENGINE,ELECTRICAL,42,AUTOMATIC LOAD SHEDDING SHOULD TH
27、E IDG DISCONNECT THE ELECTRICAL SYSTEM WILL AUTOMATICALLY SHED UTILITY BUS 1 AND UTILITY BUS 2 AND WILL BE SHOWN AS INDICATED TO THE LEFT DISPLAY.,IDG HAS BEEN DISCONNECT THEN UTILITY BUS 1 & 2 ARE SHEDDED,ELECTRICAL,43,BUSFAULT(AC 1 or 2)AUTO INHIBITMANUALINHIBIT,No Reconnect,ELECTRICAL POWER SERVI
28、CES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,ESS TIE,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,44,AC ESSE
29、NTIALNormally AC Bus 1Auto xfer to AC Bus 2 Manual Xfer,ESSENTIAL POWER,ELECTRICAL,45,Manual Xfer of ESSENTIAL POWER,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER
30、,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,46,Manual Xfer of ESSENTIAL POWER,AC ESS XFER AC ESS BUS IS POWERED BY AC BUS 1,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,
31、OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,47,Manual Xfer of ESSENTIAL POWER,Manual Xfer of ESSENTIA
32、L POWER,AC ESS XFER AC ESS BUS NOT POWERED BY AC BUS 1 And is now powered by BUS 2,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,O
33、FF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,ELECTRICAL,48,AC ESS XFER AC ESS BUS IS POWERED BY AC BUS 1,ALTN,AC ESS XFER,ELECTRICAL,49,AC ESS XFER AC ESS BUS NOT POWERED BY AC BUS 1,ALTN,AC ESS XFER,ELECTRICAL,50,AC ESS XFER WHEN POWER LOSS FROM BUS
34、 1 IS DETECTED A AUTOMATIC TRANSFER WILL BE INITIATED TO BUS 2. HOWEVER WHAT IF YOU DO NOT WANT THE ESS BUS POWERED? PRESS,FAIL,OFF,AUTO XFER,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE
35、 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,Auto xfer has been turned off,ELECTRICAL,51,AC ESS XFER WHEN POWER LOSS FROM BUS 1 IS DETECTED A AUTOMATIC TRANSFER WILL BE INITIATED TO BUS 2. HOWEVER WH
36、AT IF YOU DO NOT WANT THE ESS BUS POWERED? PRESS,FAIL,OFF,AUTO XFER,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 3,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,
37、FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,Auto xfer has been turned off,OFF,ELECTRICAL,52,DC POWERBATTERIES,APU BATTERYa. 24 Volt/43 Ampb. Provides elect power to start APU. c. Nickel/Cadmium d. Charged by the utility bus,ELECTRICAL,53,MAIN BATTERYa. 24 Volt/17 Amp b. Nicke
38、l/Cadmium c. Charged by the utility bus,DC POWER BATTERIES,ELECTRICAL,54,DC POWERBATTERIES,APU BATTERY24 Volt/43 Amp MAIN BATTERY24 Volt/17 Amp,NOTE: BOTH BATTERIES ARE LOCATED IN THE AFT EQUIPMENT BAY.,ELECTRICAL,55,BATTERYPOWER DISTRIBUTION,4 busses MAIN BATT DIR BUS APU BATT DIR BUS DC BATT BUS(L
39、 & R) - powered by Main and APU,ELECTRICAL,56,BATTERYPOWER DISTRIBUTION,4 busses MAIN BATT DIR BUS APU BATT DIR BUS DC BATT BUS(L & R) - powered by Main and APU,ELECTRICAL,57,BATTERYPOWER DISTRIBUTION,4 busses MAIN BATT DIR BUS APU BATT DIR BUS DC BATT BUS(L & R) - powered by Main and APU,ELECTRICAL
40、,58,BATTERY POWERED SYSTEMS,MAIN BAT DIR BUS AHRS, PSEU, APU ECU, EICAS DCU, CLOCKS, FLIGHT DECK LIGHTS,ELECTRICAL,59,BATTERY POWERED SYSTEMS,APU BAT DIR BUS APU STARTER, DC EMER BUS, REFUEL SYSTEM,ELECTRICAL,60,BATTERY POWERED SYSTEMS,L/R BATTERY BUS (w/BATTERY MASTER-ON)CautionWith Battery power o
41、nly, you have a ground operations time limited of 5 minutes, this is to protect CRT displays from overheating. The CRTs are battery powered (DC) but their cooling fans are generator driven (AC).,ELECTRICAL,61,DC Power,5 TRANSFORMER RECTIFIER UNITS TRU 1 TRU 2 SERV TRU ESS TRU 2 ESS TRU 1 28 Volts Ma
42、x 100 Amps each,ELECTRICAL,62,DC Power,5 TRANSFORMER RECTIFIER UNITS TRU 1 TRU 2 SERV TRU ESS TRU 2 ESS TRU 1 28 Volts Max 100 Amps each,ELECTRICAL,63,DC Power,5 TRANSFORMER RECTIFIER UNITS TRU 1 TRU 2 SERV TRU ESS TRU 2 ESS TRU 1 28 Volts Max 100 Amps each,ELECTRICAL,64,DC Power,5 TRANSFORMER RECTI
43、FIER UNITS TRU 1 TRU 2 SERV TRU ESS TRU 2 ESS TRU 1 28 Volts Max 100 Amps each,ELECTRICAL,65,DC Power,5 TRANSFORMER RECTIFIER UNITS TRU 1 TRU 2 SERV TRU ESS TRU 2 ESS TRU 1 28 Volts Max 100 Amps each,ELECTRICAL,66,DC Power,5 TRANSFORMER RECTIFIER UNITS TRU 1 TRU 2 SERV TRU ESS TRU 2 ESS TRU 1 28 Vol
44、ts Max 100 Amps each,ELECTRICAL,67,DC DISTRIBUTION,10 BUSES(BATT BUS IS ACTUALLYL/R BATT BUS),ELECTRICAL,68,Whats On the DC Buses?,LOOK AT THE 28 VOLT DC ESSENTIAL CBS,ELECTRICAL,69,Whats On the DC Buses?,ELECTRICAL,70,TIE 1 & 2 Automatic. ESS manual-only.,DC BUS TIES,ELECTRICAL,71,TIE 1 & 2 Automat
45、ic. ESS manual-only.,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,ESS TIE,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY
46、MASTER,OFF ON,OFF ON,APU GEN,DC,AC,DC BUS TIE COCKPIT SWITCHES LTS OFF = OPEN,ELECTRICAL,72,TIE 1 & 2 Automatic. ESS manual-only.,No Reconnect,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DISC,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 2,TIE 1,AU
47、TO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,DC BUS TIE COCKPIT SWITCHES LTS ON = CLOSED,ESS TIE,ELECTRICAL,73,TIE 1 & 2 Automatic. ESS manual-only.,ELECTRICAL POWER SERVICES,AVAIL,AVAIL,IN USE,IN USE,FAIL,DIS
48、C,ALTN,OFF,CLOSED,CLOSED,CLOSED,AC POWER,IDG2,IDG1,DISC,DISC,AC ESS XFER,FAIL,DISC,TIE 2,TIE 1,AUTO XFER,GEN 2,GEN 1,OFF/RESET,OFF/RESET,OFF/RESET,ON,ON,ON,OFF,FAIL,FAIL,FAIL,DC POWER,DC SERVICE,BATTERY MASTER,OFF ON,OFF ON,APU GEN,DC,AC,DC BUS TIES,ESS TIE,ELECTRICAL,74,TIE 1 & 2 Automatic. ESS manual