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‐ It becomes amber when the bus is not supplied.
(4) SHED indication
It appears in amber, when AC ESS SHED BUS is not supplied.
(5) LND RCVRY indication
Appears in green when LAND RECOVERY pushbutton is pressed.
ELEC DC ECAM PAGE
Applicable to:
NORMAL CONFIGURATION
(1) TR 1 (or TR 2 or APU TR) power supply
‐ It is normally white
‐ its becomes amber when the bus bar is not powered.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
ELECTRICAL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-24-20 P 37/48
FCOM 19 AUG 10
(2) ESS TR power supply
(A) Appears in white, when the AC 1-1 busbar supplies the ESS TR.
(B) Appears in white, when the AC 2-4 busbar supplies the ESS TR.
(C) Appears in white, when the emergency generator is not failed, and supplies the ESS
TR.
Appears in amber, when the emergency generator is failed, and is connected to the
ESS TR.
(D) Appears in amber in all other cases (ESS TR not supplied, or information not
available).
(3) Transformer Rectifier (1, 2, APU, and ESS)
(A) TR indication :
‐ Appears in white
‐ Appears in amber, when the voltage or the current (value) is abnormal, or when the
TR is failed (overheat, minimum current, overcurrent, open or short circuit).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
ELECTRICAL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-24-20 P 38/48
FCOM 19 AUG 10
(B) Voltage :
‐ Appears in green
‐ Appears in amber, when the voltage is less than 25 V, or greater than 31 V.
Note: For APU TR, voltage indication remains green, even if abnormal during
APU start.
(C) Current :
‐ Appears in green
‐ Appears in amber, when the TR is failed or the current is less than 2 A.
(4) DC BUS bars
‐ normally green
‐ amber if no voltage on the bar
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
ELECTRICAL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-24-20 P 39/48
FCOM 19 AUG 10
(5) Batteries
‐ if BAT pb is selected OFF
‐ if BAT pb is selected AUTO
(A) BAT indication
‐ normally white
‐ amber if the battery is faulty
(B) Voltage
‐ normally green
‐ amber below 25 V or above 31 V
(C) Current (charge or discharge) :
‐ normally green
‐ amber if discharge current is above 5 A.
Note: For APU battery, even if voltage or current is abnormal, the values remain green
during APU start.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
ELECTRICAL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-24-20 P 40/48
FCOM 19 AUG 10
EMERGENCY CONFIGURATION
(1) DC BAT – BAT connection
‐ Battery Line Contactor open :
nothing displayed
‐ Battery Line Contactor closed :
↓􀀃
green
: battery charge
↑􀀃
amber
: battery discharge
(2) DC ESS – BAT connection
↓􀀃
amber
: appears when the contactor is closed. (Batteries supplying DC ESS bus)
(3) Static inverter
‐ normally white
‐ amber when the static inverter is faulty.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
ELECTRICAL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-24-20 P 41/48
FCOM 19 AUG 10
ELEC DC ECAM PAGE
Applicable to: ,
NORMAL CONFIGURATION
(1) TR 1 (or TR 2 or APU TR) power supply
‐ It is normally white
its becomes amber ‐ when the bus bar is not powered.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
ELECTRICAL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-24-20 P 42/48
FCOM 19 AUG 10
(2) ESS TR power supply
(A) Appears in white, when the AC 1 busbar supplies the TR.
(B) Appears in white, when the AC 2 busbar supplies the TR.
(C) Appears in white, when the emergency generator is not failed, and supplies the ESS
TR.
Appears in amber, when the emergency generator is failed, and is connected to the
ESS TR.
(D) Appears in amber in all other cases (ESS TR not supplied, or information not
available).
(3) Transformer Rectifier (1, 2, APU, and ESS)
(A) TR indication :
‐ Appears in white
‐ Appears in amber, when the voltage or the current (value) is abnormal, or when the
TR is failed (overheat, minimum current, overcurrent, open or short circuit).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
ELECTRICAL
CONTROLS AND INDICATORS
A330/A340 FLEET DSC-24-20 P 43/48
FCOM 19 AUG 10
(B) Voltage :
‐ Appears in green
　
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