Electrical

Question 1

What type of an electrical system is the airplane equipped with?

Answer 1

28 V DC.

Question 2

If both generators are available, do they operate in a split bus mode or parallel mode?

Answer 2

Split bus mode.

Question 3

What does the white AVAIL light indicate?

Answer 3

GPU is connected but not selected. Voltage is between 25 & 30 V DC.

Question 4

Which light will illuminate when the GPU button is pushed in and providing power to the airplane?

Answer 4

Green IN USE

Question 5

What color does the battery voltage indication show if the battery is discharging?

Answer 5

Amber

Question 6

What will the indication be on the electrical synoptic page if the GPU is connected but is not providing power to the airplane?

Answer 6

A white GPU.

Question 7

Will the RAT be continuously displayed on the electrical synoptic page? If not, when would it be displayed?

Answer 7

No. When the RAT is deployed.

Question 8

How can the pilot manually command the RAT to deploy?

Answer 8

RAT MANUAL DEPLOY lever.

Question 9

What buses is the APU capable of supplying power to on the ground if the APU is the only source of electrical power?

Answer 9

All buses and battery charging.

Question 10

What buses is the APU capable of supplying power to inflight?

Answer 10

As the only generator, all buses except SHED BUSES.

Question 11

What buses does the RAT generator power?

Answer 11

EMER BUSes 1, 2 & 3 and battery charging.

Question 12

When will the RAT automatically deploy?

Answer 12

During an electrical emergency.

Question 13

In flight, when will an electrical emergency occur?

Answer 13

Two main generators and APU generator are not available.

Question 14

How many main batteries are there?

Answer 14

Two

Question 15

What is the rating of the main batteries?

Answer 15

24 V DC 40 AH.

Question 16

If the batteries are the only source of electrical power inflight, what buses will be powered and what CAS message will be displayed?

Answer 16

EMER BUSes 1, 2 & 3. Red BATT DISCHARGING CAS message.

Question 17

In an electrical emergency, what buses are powered/isolated from the aircraft electrical system?

Answer 17

EMER BUSes 1, 2 & 3.

Question 18

In an electrical emergency,what sources of power can provide electrical power to the EMER BUSes 1, 2 & 3?

Answer 18

BATT 1, BATT 2 or RAT.

Question 19

What buses will be energized when the airplane is de-energized and there is no electrical power source available?

Answer 19

HOT BUS 1 and HOT BUS 2.

Question 20

For ground servicing,when a GPU is connected and providing power to the airplane,with the GPU button pushed out and the BATT 1 and BATT 2 switches in the off position,which bus is energized by the GPU.

Answer 20

SHED BUS 1.

Question 21

Which battery is connected to the APU START BUS to assist with an APU start?

Answer 21

BATT 2.

Question 22

How many generators need to be operating in order for the SHED BUS to be energized in flight?

Answer 22

Two.