DOC AIRBUS | AMM A320FREFUELING ON BATTERY - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The network has two busbars:
** ON A/C NOT FOR ALL The network has two busbars:
Refueling on Battery - Simplified Schematic- 501PP and 502PP (28VDC).
The network is supplied immediately when the refuel door on the fuselage below the right wing is open.
Two supplies are then possible: - 28VDC service bus 601PP if the ground service busses are energized
- 28VDC hot bus 701PP (connected to battery 1) if no other power source is available on aircraft.
The refuel power supply becomes activated when, on refuel/defuel control panel 800VU, the BATT POWER switch (10PR) is in the ON position and the MODE SELECT switch is in the REFUEL position.
The 28VDC hot bus 701PP stays energized for ten minutes only (this is to prevent the discharge of the batteries). But on refuel/defuel control panel 800VU, when the MODE SELECT switch is in the REFUEL position and the BATT POWER switch stays in the ON position: - The battery 1 continues to supply 28VDC hot bus 701PP
- A temporization cycle starts again and again.
In these conditions, it is recommended to: - Put the BATT POWER switch in the ON position during one second and then to the NORM position.
Then it is necessary to start the refueling in ten minutes. If not, the operator must put the BATT POWER switch in the ON position again.
NOTE: Refueling power supply is automatically cut off ten minutes after.