ELECTRIK

Question 1

In the event of a VFG failure, the remaining VFG with supply anti-ice protection to ______________.

Answer 1

• the engine inlets
• the spinner afterbodies

Question 2

What are the main components of the AC electrical system?

Answer 2

• 2 CFGs
• 2 VFGs
• 6 AC buses

Question 3

What are the main components of the DC electrical system?

Answer 3

• 3 solid state regulated converters
• 24 ampere-hour sealed lead acid battery
• 6 DC buses
• associated panels, contactors, and controls

Question 4

What are the 6 DC buses?

Answer 4

• DC1
• DC2
• DC3
• Essential/Battery bus
• Maintenance Bus
• Unswitched battery bus

Question 5

What are the 6 AC buses?

Answer 5

• Left Nacelle IPS
• Right Nacelle IPS
• AC1
• AC2
• Environmental bus 1
• Environmental bus 2

Question 6

FCC Power sources; GO!
(1, 2, & 3)

Answer 6

FCC1:
- Left PMG (VFG3)
- DC Bus 1
- 1.5 amp hours dedicated FCC battery

FCC2:
- MWGB PMG (VFG4)
- DC Bus 1
- Essential/Battery Bus

FCC3:
- DC Bus 2
- Essential/Battery Bus

Question 7

Components of the Nacelle IPS:

Answer 7

• Rotors
• Spinners
• Pendulum dampeners
• Air inlets
• Windshields
• Pitot tubes
• AOA sensor
• Ice protection sensors

Question 8

In flight, 80% battery charge provides?

Answer 8

20 minutes emergency power for essential equipment

Question 9

The DC power system supplies the aircraft with ____ - ____ Vdc electrical power.

Answer 9

24-48 Vdc

Question 10

VFGs are rated at:

Answer 10

50/80 KVA

Question 11

CFGs are rated at:

Answer 11

40 KVA

Question 12

Which generators are driven by the MWGB?

Answer 12

• VFG4
• CFG1

Question 13

Which generators are driven by the L/R TAGBs?

Answer 13

• VFG3 (L TAGB)
• CFG2 (R TAGB)