AC GROUND SERVICE BUS CONTROL - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
AC Ground Service Network - Block Diagram ** ON A/C NOT FOR ALL
AC Ground Service Network - Block Diagram ** ON A/C NOT FOR ALL
AC Ground Service Network - Block Diagram ** ON A/C NOT FOR ALL
AC ground/flight distribution network can be supplied:
** ON A/C NOT FOR ALL
AC Ground Service Network - Block Diagram ** ON A/C NOT FOR ALL
AC Ground Service Network - Block Diagram ** ON A/C NOT FOR ALL
AC Ground Service Network - Block Diagram ** ON A/C NOT FOR ALL - either normally from the aircraft network,
- or directly by the ground power unit upstream of the external power contactor, in ground service configuration.
2. Component Location
AC Ground Service Bus - Component Location ** ON A/C NOT FOR ALL
AC Ground Service Bus - Component Location ** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
AC Ground Service Bus - Component Location ** ON A/C NOT FOR ALL
AC Ground Service Bus - Component Location ** ON A/C NOT FOR ALL | FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS DOOR | ATA REF |
|---|---|---|---|---|---|
| ** ON A/C ALL | |||||
| 12XX | CNTOR-AC GND SVCE SPLY | 120VU | 212 | 24-42-55 | |
| 14XX | CNTOR-AC & DC GND SVCE SPLY | 120VU | 212 | 24-42-55 | |
| ** ON A/C NOT FOR ALL | |||||
| 16XX | CNTOR-SVCE BUS 2 | 120VU | 212 | 24-42-00 | |
| ** ON A/C ALL | |||||
| 5XX | SW-MAINT BUS/ON | 2000VU | 223 | 24-42-00 | |
3. System Description
The AC ground/flight network comprises the sub-busbars:
** ON A/C NOT FOR ALL The AC ground/flight network comprises the sub-busbars:
- 212XP,
- 214XP,
- 216XP-C.
4. Operation/Control and Indicating
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL
Supply selection for ground service network is controlled from panel 2000VU, MAINT BUS switch:
The normal supply configuration takes precedence over the ground service configuration.
The normal supply configuration takes precedence over the ground service configuration.
The normal supply configuration takes precedence over the ground service configuration.
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL
AC Ground Service Bus Control - Schematic Diagram ** ON A/C NOT FOR ALL - one position corresponds to the normal supply configuration,
- the other position controls the ground service network supply from the ground power unit, if available. This position is electromagnetically latched.
The normal supply configuration takes precedence over the ground service configuration.
NOTE: Overheat of TR2 results in the automatic unlatching of MAINT BUS switch. This entails the cut-off of the ground distribution network.
Supply selection for ground service network is controlled from panel 2000VU, MAINT BUS switch: - one position corresponds to the normal supply configuration.
- the other position controls the ground service network supply from the ground power unit, if available and if the "COMMERCIAL" pushbutton switch (commercial load shed) is pressed. This position is electromagnetically latched.
The normal supply configuration takes precedence over the ground service configuration.
NOTE: Overheat of TR2 results in the automatic unlatching of MAINT BUS switch. This entails the cut-off of the ground distribution network.
Supply selection for ground service network is controlled from panel 2000VU, MAINT BUS switch: - one position corresponds to the normal supply configuration.
- the other position controls the ground service network supply from the ground power unit, if available and if the "COMMERCIAL" pushbutton switch (commercial load shed) is pressed. This position is electromagnetically latched.
The normal supply configuration takes precedence over the ground service configuration.
NOTE: Overheat of TR2 results in the automatic unlatching of MAINT BUS switch. This entails the cut-off of the ground distribution network.