Electrical Power Supply 1-30 Flashcards
The generator is how many volts/amps?
28 VDC, 300 amp
The battery is how many volts/amps?
24 VDC, 42 amp
The aux battery is how many volts/amps?
24 VDC, 5 amp
The generator needs to supply a minimum of
_______ to charge the battery.
25 volts
The generator control switches, located in each cockpit, are _______ held on and ________interlocked,
magnetically ; electrically
Moving the generator switch to ON in either cockpit turns generator power on.
True
While control of the generator switches is being transferred, power remains momentarily stops.
False.
If the generator malfunctions in flight, what can you do?
the generator may be reset with the generator reset button,
Besides pressing the generator reset button, located in either cockpit, how can you reset the generator?
By cycling the GEN switch off and back on.
If the red GEN annunciator illuminates, what is automatically shed?
the air conditioning is the
only equipment automatically shed.
The battery provides power for engine starts and is capable of powering all electrical systems except?
air conditioning.
The battery control switches, located in each cockpit, are _______ held on and ________interlocked,
magnetically ; electrically
Is there an aux battery switch in both cockpits?
No, only in the front
The auxiliary battery power
level may be tested by holding the AUX BAT switch,
located on the front cockpit left console system test panel,
for a minimum of _________
5 seconds
In an emergency situation, the auxiliary battery will power the standby instruments, UHF transceiver and backup UHF control,
standby instrument lighting, and FIRE 1 fire warning system for approximately__________
30 minutes.
If the AUX BAT test switch does not illuminate, what is indicated?
That the AUX BAT is less than 50% charged
External power is distributed on the battery bus and is controlled by the ___________
battery switch
How is the aircraft protected from external power over/under voltage.
internally through a voltage sensor
Do not connect external power if battery voltage is below ________.
22.0 volts
Connecting external power could cause damage to the
aircraft battery.
The BUS TIE switch is in both cockpits?
False. Only in the front cockpit
With the BUS TIE switch engaged (NORM position), the generator feeds what?
both generator and battery bus
items.
If the bus tie fails, or is set to OPEN, what will illuminate?
the amber BUS TIE annunciator
Expect a minimum of ________ of battery power to the battery bus items (with BUS TIE OPEN)
30 minutes
If the GEN fails but the BUS TIE is normal, what then?
failed, the items on the generator bus will not be powered, but the generator will continue to power the
battery bus and charge the battery.
