Electrical Flashcards
Networks in the electrical system
2 network left and right
What happens if a generator fail
Bus ties automatically connect to provide no degradation
Components of the AC system
2 IDG 115v 1 APU Inverter RAT AC GPU
Components of the DC system
2 nicad batteries
28v system
3 transformers rectifiers unit (tru)
DC GPU receptacle
What are the IDG
Integrated driver generators
One each engine
CSD (constant speed drive) attached to it provides constant power output
What controls the electrical system
4 integrated Control center ICC
2 seconday power distribution assembly SPDA
What is the ICC
What are the 4 ICC
Integrated control center Collects electricity . Confirm power is safe. Left ICC Right ICC Emergency ICC Auxiliary ICC
What is the SPDA
Secondary Power distribution Assembly
Distributes power according to logic
Describe the batteries
Bat 1 located on forw. Bay Bat 2 aft bay 10 minutes of electricity Bat 2 is for APU start 24V
What is the purpose of the TRU
Convert AC to DC
How batteries are used to start the APU
Batt 2 power the starter
Batt 1 powers the Fadec and EICAS
Can the pilot reset the remotes circuit breaker from the ICC and SPDA
Icc only by maintenance
SPDA via MCDU
What is the primary source of AC power
Respetive generator
APU
Ground cart
Opposite generator
Whats connected to Hot Batt bus 1
Courtesy lights Dc ceiling lights Engine 1 oil level ind Engine 1A fire extinguisher Engine 2A fire extinguisher Hys sistem 1 SOV Fuel shut off valve number 1
Whats on Hot batt bus 2
Engine 1B fire extinguisher Engine 2 oil level Engine 2B fire extinguisher Engine fuel shut off valve 2 Hyd syst sov 2 Panel refuel SMC Water and waste system
