A340 ELECTRICAL
HOT BUS 1 (some consumer may be on HOT BUS 2) FIRE BTL2 SQUIB A, APU BTL SQUIB A, CARGO SQUIB A FLT CTL PRIM1*, SEC1*, RATE GYRO1*&2*, ACCELRM1 FUEL FCMC2 main, ENG LP VLV1 MOT 1, TRIM PIPE ISOL VLV,, TK+ RH INR+CTR INLET VLVs, APU AFT PUMP, APU ISOL VLV, APU LP VLV, REFUEL VLVs HYD RAT MANUAL CTL EIS CLOCK LDG GEAR GRAVITY EXT 1, OVERSTEER WARN, PARK BRK CTL NAV ADIRU1*, ISIS* (JMA-JMG) ENG REV SHUT OFF VLV ENG 2+4
DC BAT BUS
AIR CARGO VENT CTL, CARGO FWD HOT AIR VLV FIRE SDCU1, LDMCRC DET SDCU 2 FLT CTL PITCH TRIM1, RUD TRIM1, PFTU RUD TRIM1 (JMH-JMI) FUEL FCMC1, FCMC2 level sensing NAV STBY ALTIMETER(JMJ-JMO) OXY CREW OXY CTL
DC LAND REC
available when EMER GEN by ENG PUMP and LAND REC ON
AVAILABLE on BAT only (whatever LAND REC position) or LAND REC ON
FLT CTL SFCC1 flaps
or direct by EXT A via MAINT BUS switch and TR2
ESS TR
EMER GEN
max 100A
5.5kVA (on ENG) 3.5kVA (on RAT and V < 260 kts)
converts DC into AC 2.5 kVA
AC BUS 1-1 AIR FAN HEATER EQPMT CAPT SEAT, FOOT WARMER FUEL APU FWD PUMP HYD G ELEC PUMP ICE L WINDOW HEAT, CAPT AOA+TAT, ICE DETECT 1, WATER DRAINS LIGHTS INTEGRAL LAMPS, ANN LTS SYS 1, UPPER BCN, L+R WING, CABIN EMER LTS NAV DME1, TCAS WATER HEATER, VACUUM L MAINTENANCE PRINTER ENG REV 4 SHUT OFF VLV
BUS TIE CONT
ENG 1 GEN
ECMU1 controls GLC1+2, BTC1+2, APU GEN CONT both DC TIE, BUS TIE, EXT B
IDG 2
GREEN HYD
HYD MOT
activates automatically by loss of AC1.1 & AC2.4 busses. If further ENG 1 & 4 are lost, the RAT will extend
TR 2
APU TR
converts AC 115V into DC 28V max 200A
max 100A
AC BUS 2-3 AIR PACK 2 ch 1 & 2, CABIN FANS 2 FUEL PMPS INR TK 3, STBY 1, TRIM FWD XFR, CTR XFR 2 AC ESS AC ESS HYD B ELEC PUMP AC ESS FEED FEED ICE F/O PITOT & AOA & TAT, ICE DETECT 2 (NORM) FUEL PMPS INR TK 1 + STBY 4 (all lost on BAT only or with LAND REC automatic EIS F/O PFD, DMC2 EFIS, SDAC2, DFDR, FDIU if AC1.1 lost LIGHTS NAV, LOGO or spd<260kts with EMER GEN on RAT) or ALTN ICE CAPT PITOT (if AIR DATA CAPT NORM) NAV ADIRU2, VOR2, MMR2, ADF2, DME2, RA2, EIS CAPT PFD, E/WD, DMC1 all, DMC3 all if switched, FWC1, SDAC1 ATC2, WX2 LIGHTS ANN LTS ESS SYS ENG FADEC B ENG 1+3, IGN B ENG 1+3, REV 3 NAV ADIRU1, AOA1, ADIRU3*, AOA3*, VOR1, MMR1, ADF1, DDRMI, SHUT OFF VLV ATC1 AC BUS 2-4 OXY PAX OXY ACTUATION AIR BULK EXTRACT FAN & ISOL VALVES, ENG FADEC A all ENGs, IGN A all ENGs FWD CARGO EXT FAN & ISOL VALVES & COLD AIR VALVES AUTO FLT MCDU 2 AC LAND REC AC ESS GRND AC ESS SHED EQPMT F/O SEAT available on BAT only available on BAT only FUEL PMPS INR TK 4, STBY 2 Not available ON BAT ONLY (whatever LAND REC if IAS<50kts ICE R WINDOW HEAT PWR or EMER GEN ON RAT position) or EIS F/O ND, DMC2 ECAM, FWC2 AUTO FLT MCDU 3 AUTO FLT MCDU1 LAND REC ON LIGHTS ANN LTS SYS2, STROBE, LOWER MAINTENANCE CMC1 COM CVR BCN, R LAND, R RWY TURN, R NOSE, R NO CONSUMERS! WING, LOGO WATER WATER HEATER, R VACUUM GEN, AC FLT/GND PRESS WATER SYS or direct by EXT A WATER COMPRESSOR MAINTENANCE CMC2 via MAINT BUS switch ENG FADEC B ENG 2+4, REV 1 SHUT OFF BUS TIE BUS TIE BUS TIE VLV CONT CONT CONT APU LINE CONT
GLC2
ENG 2 GEN IDG Oil cooled by fan air and fuel OIL OVHT > 185°
EMER GEN
on BAT only
AIR PACK 1 ch1 & 2, CABIN FAN 1, AVIONIC EXTRACT FAN, AEVC, AFT EXT FAN+ISOL VLVs (JMK-JML) COM HF1 EQPMT IN-SEAT PWR FUEL PMPS INR TK 2, STBY 3, CTR XFR 1 HYD Y ELEC PUMP(or direct from EXT PWR) ICE STBY PITOT+AOA EIS ND1, SD, DMC1 ECAM, DMC 3, QAR LIGHTS L RWY TURN, L NOSE, L LAND NAV ADIRU3, RA1, GPWS, WX1 MAINTENANCE DATA LOADER INFO ATSU1 ENG IGN B ENG 2+4, REV 2 SHUT OFF VLV
DC FLT/GND COM CIDS 1 & 2, DEU (A/B) HYD Y ELEC PUMP, LEAK MES. VLVs LDG GEAR PARK BRK CTL LIGHTS L DOME WATER POTABLE WATER SYS, FLUSH CTL UNITS, VACUUM SYS CTL, COMPRESSOR DOORS DOORS & SLIDES CTL
FLT CTL SFCC1 slats LDG GEAR LGCIU1
AC BUS 1-2
IDG 1
SHED LAND REC
STATIC INVERTER
HOT BUS 2 COM EXT HORN FIRE BTL1 SQUIB A, APU AUTO EXT LDG GEAR GRAVITY EXT 2 NAV ADIRU2*(5min), ADIRU3*
AIR PACK 2 ch1 & 2, ZONE CTL ch 2, CPC 2, CARGO VENT CTL, FWD CARGO HOT AIR VLV AUTO FLT FMGC 2, FCU C COM VHF2, RMP2 EQPMT CKPT DOOR LOCK FIRE ENGs LOOP B, BTL1 SQUIB B, BTL2 SQUIB B, SDCU2, CARGO SQUIB B, LDMCRC EXT FLT CTL PRIM 2+3, SEC2, FCDC2, SFCC2, ACCLRM2, PITCH TRIM 2&3, RUD TRIM2, RUD TRAVEL2, PFTU-RUD TRIM 2 (JMH-I) FUEL FCMC2 MAIN, PMPs INR TK 3+4, STBY 1+2, TRIM FWD XFR PMP, XFEED2, ENGs LP VLV2, R AFT XFR VLV, CTR TK INLET VLV HYD HSMU Y & G CTL, ENG 3+4 PUMPs CTL, ENG 1+3 FIRE SHUT OFF, Y ELEC PUMP ICE ENG 1+3 A/ICE CLOSURE, WHC2, F/O PHC, F/O STATIC, F/O WIPER, F/O RAIN, WIPCU 1+2 LDG GEAR LGCIU2, GEAR SAFETY VLV, BSCU2, BRK FAN CTL LIGHTS R STRIP & MAP & CONSOLE, CAPT & F/O READ, ANN LT TEST DIM, STROBE AUTO, L+R TURN OFF, L+R NOSE, LOGO PNEUMATIC BMC 1+4, ENG 1+3 HP+FAN VLVs, X-BLEED AUTO CTL MAINTENANCE CMC2 SWITCHING INFO DCDU2 ENG ENG 1+3 OIL PRESS, REVs VLV B
DC ESS
DC ESS SHED
APU BAT
DC BUS 2
flight on BAT only
AIR PACKS CLOSURE VLVS, RAM AIR, CPC1 AUTO FLT FCU A (JMJ-JMO), FCU B COM VHF1, RMP1, CAPT & F/O ACP, FLT INT, CAPT & F/O LOUDSPEAKER(with AUDIO SWTCH NORM), CIDS 1&2, DEU (A/B) FIRE ENGs LOOP A, APU LOOP A FLT CTL PRIM1, SEC1, FCDC1, RATE GYRO 1&2, ACCELRM1, RUD TRAVEL1, FUEL INR TK PMP 1, STBY PMP 4*, X-FEED MOT 1, TRIM TK ISOL VLV, TRIM PIPE ISOL VLV, AUX FWD XFR VLV, OUT TK XFR VLVs, TRIM TK INLET VLV, RH INNER INLET VLV HYD ENG 1*, 2, 3* & 4 FIRE SHUT OFF VLVs, RAT AUTO CTL ICE CAPT RAIN REPELLENT EIS ECP, CLOCK LDG GEAR GEAR INDICATOR PANEL LIGHTS R DOME, CTR INST PNL, STBY COMPASS, CABIN EMER LTS NAV ISIS (JMA-JMG), STBY HORIZON (JMJ-JMO), COMPASS OXY PAX OXY AUTO CONTROL PNEUMATIC BMC 2 & 3, all BLEED VLVs, X-BLEED MANUAL CTL APU ECB SUPPLY during APU start ENG all HP VLVs, REV SHUT OFF VLV ENG 2 & 4
not available if ON BAT ONLY or EMER GEN ON RAT
GLC1 Generator Line Contactor
DC TIE
BAT 2 37 Ah
flight on BAT only
DC BUS 1
TR 1
DC BAT TIE CONT
APU BAT BUS
37 Ah APU HOT BUS ON GND if APU BAT BUS not supplied
during APU start
BAT CONT
BAT 1 37 Ah
AIR PACK 1 ch1 & 2, ZONE CTL ch 1 AUTO FLT FMGC 1, SIDESTICK LOCK, RUD ARTIFICAL FEEL STIFFENING COM VHF3, RMP3, ACP3, SELCAL, CVR CTL CAPT or F/O LOUDSPEAKER* (with AUDIO SWTCH CAPT or F/O ON 3) EQPMT CKPT DOOR LOCKING & VIDEO FLT CTL, if DC2 lost: PRIM2+3, SEC2, ACCEL2, PTCH TRIM ACT2 FUEL PMPS INR TK 2, STBY 3+4, CTR XFR 1, L AFT XFR VLV, INLET OUTER L+R, INR L, JETTISON VLV L+R MOT 1+2 HYD HSMU B&G CTL, ENG1+2 PUMPs CTL, G & B ELEC PUMP ICE WING A/ICE VLVs, ENG 2+4 A/ICE closure, CAPT or STBY STAT, CAPT WIPER EIS LA (3 axis linear accelerometer) LDG GEAR GEAR SAFETY VLV, TIRE PRESS, BSCU ch1 LIGHTS L STRIP & MAP & CONSOLE, CTR INST PANEL, SUPPL READ, PEDESTAL, INTEGRAL LEDS, L+R LAND PNEUMATIC ENG 2+4 HP+FAN VLVs MAINTENANCE CMC1 SWITCHING INFO ATSU1, DCDU1 ENG ENG 2+4 OIL PRESS, REVs VLV A
converts AC 115V into DC 28V max 200A
APU ECB
AIR CAB PRESS MAN CTL FIRE APU LOOP B, APU BTL SQUIB B FUEL REFUEL VLVs, APU LP VLV ICE CAPT & STBY PHC DOORS DOORS & SLIDES STBY CTL ENG ALL EIUs DC TIE
APU START
APU BAT CONT
APU GEN APU GEN 3-phase 115kVA 115V 400Hz
EXT PWR CONT
EXT B
EXT PWR CONT
EXT A
GPCU (JMJ-JMO) Controls Volt/Freq of EXT, NBPT with GCU GAPCU (JMA-JMI) Controls Volt/Freq of APU+EXT, NBPT with GCU
LEGEND
GLC3
normal PWR distribution PWR with EMER GEN on eng pump alternate feeding lines Busses in red are available in EMER ELEC config with EMER GEN on hyd eng pump Busses in orange are shed in EMER ELEC and may be recovered under required conditions * consumer standby supplies
BUS TIE CONT
ENG 3 GEN IDG 3 ENG GENERATORS 3-phase 75kVA 115V 400Hz max load 100%
GLC4
GCUs (4) controls voltage, frequency and GLC
ENG 4 GEN IDG 4
ECMU2 controls GLC3+4, BTC3+4, EXT A both DC TIE
!!! NOT FOR OPERATIONAL USE !!! A340 ©Pierre-Michel Gasser, 10.9.2008
