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When OFF:
the APU generator is de-energized and the line
contactor opens.
EXT PWR PUSHBUTTON
When ON:
the external power connects to the electrical network
if electrical parameters are correct and if it has
priority.
BUS TIE PUSHBUTTON
When set to AUTO:
the Bus Tie Contactors open or close automatically
according to priority to maintain the power supply to
AC BUS 1 and AC BUS 2.
When OFF:
the Bus Tie Contactors open.
AC ESS FEED PUSHBUTTON
In normal operation:
the AC ESS bus is supplied by AC BUS 1.
When set to ALTN:
the AC ESS bus is supplied by AC BUS 2.
BAT 1/2 PUSHBUTTONS
In normal operation:
the Battery Charge Limiter automatically controls the
connection and disconnection of the battery to the DC
BAT Bus.
When OFF:
the battery is disconnected.
TMUELE202-T01 LEVEL 1
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ELECTRICAL SYSTEM MAIN CONTROL PANEL PRESENTATION
TMUELE202-P01 LEVEL 1
EFFECTIVITY 24-00-00 Page 3
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GALY & CAB PUSHBUTTON
When set to AUTO:
the main and secondary electrical circuits of the
galleys are supplied.
The main electrical circuits are automatically shed
when only one generator is operating.
On ground, all galleys are available on APU or external
power.
When set to OFF:
main and secondary electrical circuits of the galleys
are shed.
Note : Two AC and two DC sheddable buses for cabin
systems are also affected by the switch
position.
MAINT BUS SWITCH
When the MAINT BUS switch is ON, and with only the EXT
PWR available (green AVAIL light on), the AC and DC
GRND FLT buses are supplied.
The MAINT BUS switch is located in the forward galley
area (ceiling panel).
TMUELE202-T01 LEVEL 1
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24 - ELECTRICAL POWER
24-50-00 CIRCUIT BREAKER PANEL LOCATION
CONTENTS:
General
Cockpit
Passenger Compartment
Avionics Compartment
TMUELBZ01 LEVEL 2
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CIRCUIT BREAKER PANEL LOCATION
GENERAL
The green C/Bs are monitored by the SDAC (System Data
Acquisition Concentrator - ATA 31).
When a green C/B is tripped, after a time delay a
message "C/B TRIPPED", with the C/B location, appears
on the ECAM E/WD.
The number on the top of the C/B indicates
the nominal current in AMP, i.e.: 3 AMP.
Specific C/Bs :
- The WTB C/Bs (Wing Tip Brakes - ATA 27) cannot be
manually tripped.
- The C/Bs with a yellow cap must be tripped when
flying on batteries only.
TMUELBZ01-T01 LEVEL 2
EFFECTIVITY 24-50-00 Page 2
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TMUELBZ01-P01 LEVEL 2
CIRCUIT BREAKER PANEL LOCATION - GENERAL
EFFECTIVITY 24-50-00 Page 3
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TMUELBZ01-P02 LEVEL 2
CIRCUIT BREAKER PANEL LOCATION - COCKPIT
EFFECTIVITY 24-50-00 Page 4
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TMUELBZ01-P03 LEVEL 2
CIRCUIT BREAKER PANEL LOCATION - COCKPIT
EFFECTIVITY 24-50-00 Page 5
Sep 30/98
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TMUELBZ01-P04 LEVEL 2
CIRCUIT BREAKER PANEL LOCATION - COCKPIT
EFFECTIVITY 24-50-00 Page 6
Sep 30/98
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UF94200
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TMUELBZ01-P05 LEVEL 2
CIRCUIT BREAKER PANEL LOCATION - COCKPIT
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