Study Guide-Emergency Electrical Power Panel

Question 1

What powers the EMERGENCY GENERATOR?

Answer 1

Blue hydraulic system pressure generated by the RAT (Ram Air Turbine).

Question 2

When does the RAT automatically deploy?

Answer 2

Inflight with a loss of power to AC bus 1 and 2.

Question 3

What is the source of power during RAT deployment and approximately how long does it take?

Answer 3

The aircraft batteries are the sole source of electrical power for the AC and DC Essential Buses until the EMER GEN is online, which takes between 5-10 seconds.

Question 4

What does the red FAULT light on the RAT & EMER GEN pb indicate?

Answer 4

The EMER GEN is not supplying power to AC and DC Essential Buses.

Question 5

What does the SMOKE light in the GEN 1 LINE pb indicate?

Answer 5

Smoke detected in the avionics ventilation ducting.

Question 6

Will there be any other indications of avionics smoke on the overhead panel, other than the SMOKE light on the EMER ELEC PWR panel?

Answer 6

FAULT lights in the EXTRACT and BLOWER pbs on the VENTILATION panel.

Question 7

1-What happens when you push the GEN 1 LINE pb to OFF?
2-And when is this procedure used?

Answer 7

1-Generator 1 is isolated from the electrical system network and is only providing power to one fuel pump in each wing fuel tank.
2-Smoke procedures

Question 8

Is there a way to manually deploy the RAT?

Answer 8

Yes the guarded MAN ON pb.

Question 9

Will the RAT deploy on the ground if the MAN ON pb is pressed?

Answer 9

YES

Question 10

Do pilots ever use the EMER GEN TEST pb?

Answer 10

No- MX function only.