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T-6 Systems > Electrical System > Flashcards

Electrical System Flashcards

1
Q

What are the components of the electrical system?

A
  • 28 VDC, 300 amp starter/generator
  • 24 VDC lead acid battery
  • 24 VDC aux battery
  • 28 VDC external power receptacle
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2
Q

How many buses does the T-6 contain, and what are they?

A

2, the battery bus and generator bus

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3
Q

What does the bus tie switch do?

A

Allows isolation of the buses if required

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4
Q

What supplies primary aircraft power?

A

The generator function of the starter/generator

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5
Q

What does the generator supply power to?

A

All equipment on both the generator and battery buses

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6
Q

What does the generator do besides power the buses?

A

Charges the battery and aux battery to 24 VDC

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7
Q

What regulates and monitors the generator?

A

Generator Control Unit

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8
Q

Where is the Generator Control Unit located?

A

Under a panel on the right side of the aft cockpit

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9
Q

What does the Generator Control Unit provide?

A
  • Voltage regulation
  • Overvoltage and undervoltage protection
  • Generator overload protection
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10
Q

What will the Generator Control Unit do if it senses a malfunction?

A

Trip the generator offline

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11
Q

What is power from the generator controlled by?

A

A generator control switch, placarded GEN, on the right forward switch panel in each cockpit

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12
Q

If the GEN switch is set to ON in one cockpit, what happens in the other cockpit?

A

The GEN switch is set to OFF

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13
Q

How is power provided for the GEN switches?

A

A circuit breaker labeled GEN SW on the front cockpit generator bus circuit breaker panel

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14
Q

How is the generator bus divided?

A

Into front and rear buses for the respective cockpits

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15
Q

What does the front generator bus power?

A

The rear generator bus and front cockpit avionics bus

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16
Q

How is the rear cockpit avionics bus powered?

A

By the forward generator bus through the front cockpit avionics bus

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17
Q

What is the rear cockpit generator bus controlled by?

A

AFT GEN circuit breaker on the front cockpit generator bus circuit breaker panel

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18
Q

What are the front and rear cockpit avionics buses controlled by?

A

FWD AVI and AFT AVI respectively on the front cockpit generator bus circuit breaker panel

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19
Q

How many battery buses are there?

A

2, front cockpit and aft cockpit

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20
Q

Where does the rear cockpit battery bus receive power from?

A

The front cockpit battery bus

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21
Q

How does the rear cockpit avionics bus receive power?

A

From the front cockpit battery bus through the front cockpit avionics bus

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22
Q

What controls power to the rear cockpit battery bus?

A

AFT BAT circuit breaker on the front cockpit battery bus circuit breaker panel

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23
Q

What controls power to the front and rear cockpit avionics battery buses?

A

FWD AVI and AFT AVI respectively, on the front cockpit battery bus circuit breaker panel

24
Q

What is the hot battery bus directly connected to and powered by?

A

The battery whenever the battery is installed on the aircraft

25
Q

What does the hot battery bus do?

A
  • Continuous essential power to components which are required to operate continuously or may be necessary in an emergency
  • Doesn’t matter what position battery switches are in
26
Q

What components are powered by the hot battery bus?

A
  • FDR MAINT
  • Ram air valve
  • ELT
  • Emergency flaps
  • Clocks
  • OBOGS
  • Battery switch
27
Q

What are the components of the secondary power system?

A
  • 24 VDC 42 amp-hour battery

- 24 VDC, 5 amp-hour aux battery

28
Q

What is the purpose of the battery?

A
  • Provides power for engine starts

- Powers all electrical systems (except A/C) in the event of a generator failure with the bus tie closed

29
Q

What controls battery power?

A

The battery switch , labeled BAT on the right forward switch panel in each cockpit

30
Q

If the BAT switch is on in the front cockpit, what position is it in in the rear cockpit?

A

OFF

31
Q

What provides power for the battery switches?

A

BAT SW circuit breaker on the battery bus circuit breaker panel in the front cockpit

32
Q

What is the purpose of the Auxiliary Battery?

A

Supplies power for a minimum number of aircraft systems and avionics in the event of failure of the generator and primary battery

33
Q

How is the Auxiliary Battery controlled?

A

The auxiliary battery switch, placarded AUX BAT, on the right forward switch panel

34
Q

What is external power used for?

A

Powering all T-6 systems, to include engine start

35
Q

How is external power applied to the aircraft

A

Through the battery bus with the BAT switch in the ON position

36
Q

What helps protect against excessive voltage from the external power system?

A

A voltage sensor located between the external power receptacle and external power relay

37
Q

What happens if the voltage sensor detects overvoltage from external power?

A

It disconnects external power from the aircraft electrical system

38
Q

What provides power for the Instrument Panel Lighting System?

A

INST circuit breaker on the battery bus circuit breaker panel

39
Q

What provides power for the Side Lights?

A

SIDE circuit breaker on the generator bus circuit breaker panel

40
Q

What provides power for the Flood Lights?

A

FLDT circuit breaker on the battery bus circuit breaker panel

41
Q

What provides power for the utility and knee board lights?

A

UTIL circuit breaker on the battery bus circuit breaker panel

42
Q

Where is the landing light located?

A

Aft and inboard of the left main landing gear strut

43
Q

When is the landing light exposed?

A

When the landing gear is extended

44
Q

How do you activate the Landing Light?

A

By a switch placarded LDG on the trim control panel

45
Q

What is unique about the landing light switch?

A

The head has three horizontal bumps to assist in identifying by feel

46
Q

Where is the taxi light located?

A

Aft and inboard of the right main landing gear strut

47
Q

When is the taxi light exposed?

A

When the gear are extended

48
Q

How is the taxi light activated?

A

By a switch placarded TAXI on the trim control panel

49
Q

What supplies power to the landing light?

A

LDG circuit breaker on the battery bus circuit breaker panel

50
Q

What supplies power to the taxi light?

A

TAXI circuit breaker on the generator bus circuit breaker panel

51
Q

Where are the navigation lights located?

A

At the leading and trailing edges of each wing tip

52
Q

Where are the anti-collison lights located?

A

At the leading edge of each wing tip

53
Q

What happens with the NAV switch in the ON position?

A

The red and green wingtip navigation lights are continuously illuminated, as well as the white position lights at the trailing edge of each wing tip

54
Q

What happens with the ANTI-COLL switch is in the ON position?

A

The anti-collision strobe lights at each wing tip flash synchronously at a rate of about 30 times per minute

55
Q

What provides power for the anti-collision lights?

A

COLL circuit breaker on the battery bus circuit breaker panel

56
Q

What provides power for the navigation lights?

A

NAV circuit breaker on the generator bus circuit breaker panel

57
Q

What is a bus?

A

A conductor or assembly of conductors for collecting electric current and distributing them to outgoing feeder circuits

T-6 Systems (12 decks)

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