GEN (Generator)

Question 1

GEN-1 / GEN-2 switch has two positions. OFF/ RESET & AUTO, explain what happens when placing the switch in either position

Answer 1

OFF/RESET:
Disconnect generator from associated bus, or resets the generator control circuit

AUTO:
Connect generator to associated BUS

Question 2

What is the priority for AUTO XFER?

Answer 2

On side - on side generator
Inside - APU
Cross side - Other side generator
Outside - GPU / ADG

Question 3

The generators have a push button with amber FAIL / white OFF. What is the push button used for?

Answer 3

To disable the auto transfer of IDG

Question 4

What does FAIL indicate?

Answer 4

A fault preventing auto transfer

Reason:
BUS fault, generator overcurrent - detected by the GCU

GCU action:
. Takes affected generator off-line

. Inhibits the auto transfer system
on affected side

Question 5

What does the OFF white light indicates?

Answer 5

Auto transfer is selected off