Electrical System Flashcards
1
Q
ENGINE GENERATORS
- Voltage –
- AMP (to FL410) –
- AMP (above FL410) –
- __ Gen can power whole aircraft
A
ENGINE GENERATORS
- Voltage – 28VDC
- AMP (to FL410) – 400A
- AMP (above FL410) – 300A
- 1 Gen can power whole aircraft
2
Q
ALTERNATORS
- Power to – ___ or ___
- Power both (thru TRU) – ____ BUSES
- Cooling –
- AMP –
- Good for ____ where APU cannot be started
- Self-test after –
A
ALTERNATORS
- Power to – windshield heat or TRU
- Power both – EMER BUSES
- Cooling – Air cooled
- AMP – 100A
- Good for high altitude where APU cannot be started
- Self-test after – on-side engine start
3
Q
APU GENERATOR
- Voltage –
- AMP (on ground) –
- AMP (in flight) –
- Cannot be online at same time as ___ (has priority)
- APU connected to – ___ BUS
A
APU GENERATOR
- Voltage – 28.5 VDC
- AMP (on ground) – 300A
- AMP (in flight) – 200A
- Cannot be online at same time as LH Gen (has priority)
- APU connected to – LH EMER BUS
4
Q
MAIN BATTERIES
- Number –
- Voltage –
- AH –
- Type –
- Used mainly for –
- Min temp for start –
- To ____ when not in use for long periods
- Power all system except interior buses for –
- Power EMER Buses for – __ mins (selected within __ mins of losing gen power)
- Powers ___ BUS directly without being switched ON
A
MAIN BATTERIES
- Number – 2
- Voltage – 24 VDC
- AH – 44 AH
- Type – NiCad
- Used mainly for – APU start
- Min temp for start – -18 degC
- To disconnect when not in use for long periods
- Power all system except interior buses for – 14 mins
- Power EMER Buses for – 60 mins (selected within 5 mins of losing gen power)
- Powers BATT BUS directly without being switched ON
5
Q
BATTERY BUS
- ____ lights
- ____ lights
- ____ lights
- ____ panel
- ____ service
- ____ battery emer lights
A
BATTERY BUS
- Cabin entry lights
- Pylon lights
- Tail cone lights
- Refuelling panel
- Lav service
- Lead Acid battery emer lights
6
Q
FADEC PMA
• PMA at N2 > ___
A
FADEC PMA
• PMA at N2 > 50%
7
Q
STANDBY BATTERY
• Power SFD – • Charged by – \_\_\_ BUS • Standby instruments powered by – \_\_\_ or \_\_\_ • Amber light – • Type – • Standby Equip Bus o Standby \_\_\_ o Standby \_\_\_
A
STANDBY BATTERY
• Power SFD – 180 mins • Charged by – LH EMER BUS • Standby instruments powered by – R MAIN DC or Standby batt • Amber light – Standby batt discharge • Type – Lead acid • Standby Equip Bus o Standby Instrument o Standby AHRS
8
Q
BUS TIES
- APU connected to – _____ BUS
- Bus Tie closed –
- Bus Tie open –
- Batts considered backup and does not affect –
- BATT BUS connected directly to batts – service lights etc, NWS accumulators test
A
BUS TIES
- APU connected to – LH EMER BUS
- Bus Tie closed – Single source
- Bus Tie open – Primary sources on both systems
- Batts considered backup and does not affect – BUS TIE
- BATT BUS connected directly to batts – service lights etc, NWS accumulators test
9
Q
GPU
- Voltage range –
- AMP range –
- Supply power thru –
- Cannot be used concurrent with –
EMER BUS about 55A
A
GPU
- Voltage range – 26 to 29 VDC
- AMP range – 600 to 1000 Amp (not monitored)
- Supply power thru – R EMER BUS
- Cannot be used concurrent with – R Gen
EMER BUS about 55A
10
Q
LIMITATIONS
- Batt temp indicating system must be –
- Min Batt temp for start –
- Max current for TRU –
A
LIMITATIONS
- Batt temp indicating system must be – operational
- Min Batt temp for start – -18DeC
- Max current for TRU – 100A
11
Q
LIMITATIONS - EXT POWER
- Current –
- Voltage –
A
LIMITATIONS - EXT POWER
- Current – 600A-1000A
- Voltage – 26V-29V
