A320 Flight Manual Electrical

Question 1

When does the RAT automatically extend?

Answer 1

Loss of power to both AC busses 1 and 2.

Question 2

With the RAT extended, prior to emergency generator coupling (approximately 8 seconds), what busses are powered?

Answer 2

Bat 1 powers AC ESS bus through the static inverter. Bat 2 powers the DC ESS bus.

Question 3

With the RAT extended and the emergency generator couples, what busses are powered?

Answer 3

AC ESS, AC ESS SHED, DC ESS, and DC ESS SHED