Electrical

Question 1

The Electrical system consist of
______ volts AC
______HZ
______volts DC

Answer 1

115/200
400
28

Question 2

What are IDGs?
What do they do?

Answer 2

Integrated drive generators
Provide AC power during flight

Question 3

What is the RAT what does it do

Answer 3

Emergency Generator (Ram Air Turbine) supplies limited back up AC power

Question 4

What does the AC & DC ESS bus’s do?

Answer 4

Makes sure essential equipment remains powered during electrical emergency.

Question 5

Transformer Rectifiers (TR1&2)
Do what?

Answer 5

Convert AC power to DC power

Question 6

The electric external plug is?

If voltage and frequency is acceptable what illuminates in cockpit?

Answer 6

Forward of nose gear wheel well

AVA light overhead

Question 7

Does the APU Gen have as much power as engine driven Gen?

Can you use it with a single Eng Gen in flight?

Answer 7

Yes

Yes

Question 8

Does External Power have priority over APU?

Answer 8

Yes

Question 9

The IDG is cooled and lubricated by _________ independent of engine oil system.

Answer 9

Oil system

Question 10

If you disconnect IDG in flight can you reconnect it in flight?

Only use the pb disconnect in ______ and must not be pressed for more than______?

IDG can only be reconnected by______?

Answer 10

No

Flight and 3 seconds

MX

Question 11

What 2 things does the GCU do?

Answer 11

Controls Freq and Voltage

Controls the line contractor

Question 12

On ELEC page is Gen is Amber and 1 is white what does it mean?

If Gen is Amber and 2 is Amber what does that mean?

Answer 12

Gen 1 is running but selected off

Gen 2 is not running.

Question 13

What HYD System does RAT pressurize?

The HYD fluid then drives ______ Gen

Answer 13

Blue

Emergency

Question 14

RAT automatically deploys when we loose______?

You can also manually deploy RAT. Be carefully doing it on the ground it could hurt someone.

Answer 14

AC BUS 1 & 2

Question 15

AC ESS BUS in normal
Mode is usually powered by______?

Answer 15

AC BUS 1
AC BUS 2 is the alternate

Question 16

Maint Bus on toggle switch is in the__________. When selected to on it will allow the _______buses to receive power on the ground.

When ground power is removed the MAINT BUS switch________?

Answer 16

Forward galley

AC & DC GRD/FLT BUS

Revert to off

Question 17

Power priority for electrical system is________?

Answer 17

On side generator
External power
APU
Opposite side generator

Question 18

With AC Bus selected Off can the electrical system be powered by APU or GPU?

Answer 18

No

Question 19

When Engines are started and electrical system is operating normally. Elec power moves from APU to Engine Gen power

Question 20

Commercial push button sheds 4 things

Answer 20

Cabin and cargo lights
Water and toilet systems
Drain mast ice protection
Passenger entertainment system

Question 21

Are batteries continuously being charged when system is on?

Answer 21

No

Question 22

To conserve battery power in emergency configuration APU start is inhibited for _____?

Answer 22

45 sec

APU Start in this configuration is not recommended.

Question 23

RAT only works with speeds above______?

Answer 23

100kts

Below 100kts emergency power is provided by batteries.

Question 24

Battery only power in emergency mode will give about ______min

Answer 24

30

Question 25

Green CB are monitored by _____?

Black CB do not display message on ECAM but the failure of that ______may.

Red collared CB prevent ______?

Answer 25

ECAM

System

Crew from manually pulling