Normal Situations Flashcards
Legacy Batteries Description
24 VDC - NiCd (40 Amph) used by Jetfly. ( Lead Acid - 42 Amph)
Used for Engine Start and Double Generator Failure
Battery Autonomie in case of Double Generator Failure
20 min
GEN 1 Description
Main source of power - can power all the aircraft Starter Generator on Legacy 300 A max continuous 450 A 2 min/h Can be reset
GEN 2 Description (Legacy)
Combination of alternator and power rectifier
Can’t supply all the aircraft - Reason of the Non ESS Bus
115 A max continuous
Can’t be reset (or through an OFF/ON)
GEN 2 Description (NG)
Same as GEN1
Starter GEN
Bus architecture different
Can be reset
GCU Description
Generator Control Unit
Monitor the voltage output of the generator
Control the current to maintain a nominal voltage
RH engine bay
Output on the EIS
EPU - GPU Conditions
500 A to provide all aircraft system
1000 A for startup
Disconnected if voltage 29,5V
EPS - Emergency Power Supply Description
24 VDC - 5 Ah
30 min of power to the second ADI + lights
Must be tested before flight
Don’t forget to switch it off after the flight
AC Power
Pair of Inverter - only one used at any time (Gen1/Batt)
26 VAC - 400 Hz
Name the different BUS
Batt Direct Bus - Batt Bus - Gen 1 Bus - Gen 2 Bus - AV1 Bus - Av2 Bus - Stby Bus - Non Ess Bus
What systems are on the Batt Direct Bus?
Clock
Cockpit Dome Light
Cargo Door Motor
Baggage and Cargo Door Light
What happens to the ties in case of GEN Failure?
Both ties : GEN 2 Tie and Bus Tie are closed
What happens to the ties in case of both Gen Failure?
Both ties are closed so the battery can power the systems
What are the systems on the Stby Bus?
VHF Nav and Com 1
GPS
Audio
Avionic Blower
Through which bus is the stby bus powered?
Engine not running ; battery bus
Engine Running : through the AV Bus
