Electrical Flashcards
1
Q
How many batteries?
A
2 — 24 V / 44 Amp Hour NiCad Main Batteries
• -20ºC to start. Max 70ºC.
• Last 40 minutes (3 APU starts included)
1 — 24 V / 5 Amp Hour Lead Acid Standby Battery
2
Q
How long will the batteries last in an electrical emergency?
A
40 Minutes. Extra 5 minutes by shutting off Pitot 3.
– Includes 3 APU starts.
3
Q
How many generators?
A
4 — 28V / 400A Main Generators
1 — 28V / 400A APU Starter Generator
4
Q
Inverter
A
Converts 28V DC to 115V AC to power TCAS, EGPWS, and Windshear.
5
Q
What controls electronic components and faults?
A
EDL – Electric Distribution Logic.
6
Q
Emergency Lights a powered by?
A
4 Dedicated Batteries. Lights last about 15 minutes and are charged in flight. Activate when associated Ess DC Bus loses power.
