T-6 A Electrical System SY106

Question 1

Identify the major components of the electrical system

Answer 1

28 VDC, 200 amp starter/generator, a 24 VDC lead acid battery, a 24 VDC auxiliary battery, and a 28 VDC external power receptacle

Question 2

How is the electrical system wired together

Answer 2

Wired together through a battery bus and a generator bus, which both can be isolated through a bus tie.

Question 3

True/False: Is there enough power after start in the generator to charge the battery and aux battery to 24V?

Answer 3

True

Question 4

What does the Generator control unit (GCU) do?

Answer 4

provides voltage regulation, over voltage and under voltage protection, and generator overload protection by tripping the generator off line.

Question 5

What does the bus tie switch do?

Answer 5

used to tie the battery and generator buses together for normal operation

Question 6

What does the avionics master switch do?

Answer 6

Power for all avionics and radio systems in both cockpits, except the backup UHF control unit and receiver.

Question 7

What are circuit breakers

Answer 7

Protects systems and equipment operating from the battery bus

Question 8

What are the secondary power components?

Answer 8

24 VDC 42 amp-hour battery, 24 VDC, 5 amp-hour aux battery, and external power receptacle

Question 9

What is the purpose of the battery?

Answer 9

Provides power for engine starts and is capable of powering all electrical systems, except air conditioning in the event of a GEN failure

Question 10

Purpose of AUX battery?

Answer 10

Same as battery, but only if the Generator and primary battery both fail.

Question 11

When will the landing/taxi lights work?

Answer 11

When the gear is down and fully extended/locked

Question 12

How often do the strobe lights flash?

Answer 12

About 30 times a minute.

Question 13

Where is the primary electrical power provided from?

Answer 13

Starter/generator located in the engine accessory gearbox

Question 14

Whats happens when either cockpit moves the generator/battery switch from OFF to ON or from ON to OFF?

Answer 14

The other cockpit will automatically do the opposite

Question 15

What powers the Hot battery bus?

Answer 15

The battery when installed in the aircraft

Question 16

What gives power to essential components in the event of an emergency? (battery failure)

Answer 16

The hot battery bus

Question 17

A circuit labeled AFT BAT on the front cockpit battery bus controls what?

Answer 17

The rear cockpit battery bus

Question 18

Circuit breakers protecting systems and equipment from the battery bus are located where?

Answer 18

Left console panel

Question 19

Each circuit breaker is marked with the maximum “what” before popping?

Answer 19

Current load in amps

Question 20

Where is the AUX BAT switch located?

Answer 20

Right Forward cockpit only

Question 21

Where is the AUX BAT test switch located?

Answer 21

Left console test panel in front cockpit only

Question 22

How long do you have to test the AUX BAT test switch for?

Answer 22

5 seconds to see if the light illuminates and extinguishes when released

Question 23

Where is external power distributed?

Answer 23

Through the Battery bus

Question 24

Where is the voltage sensor located?

Answer 24

Between the external power connector and the external relay.

Question 25

External power controlled by the what? and distributed on the what?

Answer 25

controlled by the battery switch and distributed on the battery bus

Question 26

Where is the lighting controls for EFIS displays, the AOA indexer, and the GPS control panel?

Answer 26

They are mounted on the individual units