Electrical Flashcards
1
Q
What is the AC power source for the CRJ 7/9 ?
A
Primary:
. 2 gngine driven integrated
drive generator (IDG)
40 KVA, 115V(AC), 400HZ
Alternate:
. APU Generator
40 KVA, 115V(AC), 400HZ
Emergency:
. ADG (air driven generator)
15 KVA, 115V(AC), 400HZ
2
Q
What protection does the electrical system have ?
A
. A GCU - Generator Control
Unit. Provides generator
fault protection for..
- Over/Under voltage
- Over/Under frequency
- Generator or BUS over
current
- Generator phase
sequence
3
Q
What is the Max continuous load on each TRU ?
A
120 amps
4
Q
Max permissible time on DC power for ground operations ?
A
. 5 minutes, to protect the
CRT displays
