Electrical Flashcards
Max generator output in flight?
400
Max generator output in flight transient (5 seconds)?
800
Max Generator output on ground?
300
What batteries are on the aircraft?
24V
36Ah
NiCad
Battery WARM CAS temp?
48.9C
Battery HOT CAS temp?
71.1C
Standby gyro battery life?
160 minutes
Normal battery life with a dual generator failure?
77 minutes
Emergency lights battery life?
10 minutes
Each MAU has ___ power supplies.
TWO
If RH engine fails, ESS and MEDIAN Busses are?
Untied
If RH engine fails, ESS and MEDIAN busses are untied.
What powers LH, RH, and Median Busses?
LH Bus: GEN 1
MEDIAN Bus: BATT 2
RH Bus: BATT 2
Max Generator output with one gen inop?
400
External power cart limit?
28V
1000 Amp
The CVR is powered by?
Essential Bus
What trips the Generator Control Unit?
Overvolt or Overamp
If LH engine fails, ESS and MEDIAN Busses are?
Untied
If LH engine fails, ESS and MEDIAN busses are untied.
What powers LH, RH, and Median Busses?
LH: Battery
RH: GEN2
Median: GEN 2
The MINI LOAD MASTER button powers what bus?
Essential Bus
With all generator failed, what should you do?
Pull all ORANGE Circuit Breakers
Which battery powers the APU start?
BATT 1
With a dual generator failure which DU’s remain operative? What’s powering them?
LH DU and Middle Upper DU.
Powered by the Essential Bus.
Which bus powers the CVR?
Essential Bus
What busses power the electrical system?
Left
Essential
Median
Right
Hot Battery
Minimum voltage to start APU?
22V
Which bus is the APU start contactor on?
Hot Battery
