Electrical

Question 1

Generator ratings? (Engine)

Answer 1

115 volts, 40 kVA

Question 2

Which battery is bigger?

Answer 2

APU batt in tail

Question 3

Only difference between Eng. Gen and APU Gen?

Answer 3

Eng. generators are variable frequency

Question 4

How do we fix variable freq. of AC generators?

Answer 4

Convert to DC with TRU’s

Question 5

Rating of RAT gen?

Answer 5

115 Vac, 9 kVa

Question 6

Where is ACPC located?

Answer 6

in baggage compartment

Question 7

How many AC busses in the APCP?

Answer 7

4

Question 8

Where is the DCPC?

Answer 8

below cockpit floor

Question 9

TRU’s do what?

Answer 9

Convert 115 vac to 28 volt DC

Question 10

Name the TRU’s

Answer 10

TRU 1, 2, Essential TRU 1 and Ess. TRU 2.

Question 11

TRU rating in amps?

Answer 11

150 amps with overload capabilities

Question 12

Can external AC power charge the battery?

Answer 12

yes

Question 13

External DC power can do what? (1,2)Cannot do what?

Answer 13

Power selected DC busses; Start APU.

Cannot charge batteries.

Question 14

BATT MASTER to ON does what?

Answer 14

Connects both batts to Battery Bus.

Question 15

If both external AC and external DC are connected, which takes priority?

Answer 15

AC

Question 16

Gen Switchlights are on when in, or out?

Answer 16

Out is ON

Question 17

What does red EMER CNTL button on EMS do?

Answer 17

When pressed it displays AC and DC busses that can be isolated from power sources in an emergency.