Systems 2 Review Flashcards
A remote control circuit breaker (RCCB) is a specific kind of circuit breaker
not readily accessible to Pilot or Co-Pilot
The LH and RH radio busses are
switch type circuit breaker
An electrical bus is a line in either the AC or DC power that
connects electrical components
The. power sources for the DC electrical system are
Generators
External Power
The main aircraft battery powers
AC and DC busses
When the BATTERY switch. is ON and there is no other power on the aircraft, battery power is supplied to
the entire DC electrical system and both inverters
The main aircraft battery is locate in the
aft fuselage compartment
The output of a fully charged main aircraft battery is
24 Volts DC
The T-1A main aircraft batter is a
24 Volt DC Lead Acid Battery
Do not attempt a battery start if the main aircraft battery voltage is
below 22 volts DC
The external power receptacle is located on the
lower left side of the fuselage and routes 28 volt DC power to the aircraft
Generator "In flight" limitations when only one generator is operating are: up to \_\_\_ feet \_\_\_ amps \_\_\_ to \_\_\_ feet \_\_\_ amps
up to 32,500 feet
400 amps
32,500 to 41,000 feet
280 amps
With both engines operating on the ground, what is the maximum allowable load for each generator
280 amps
T-1A generators output is
28 volts DC
Under normal operations there are how many bus feeders?
2 Bus feeders
powered between Main bus and its associated Load bus
The standby power switch light is located
on the Co-Pilots panel
That is the location and load for the standby battery is
Nose compartment
24 volt
The only communication/navigation system available, when the standby bus is the only bus powered on the aircraft is the
UHF communication radio
The standby battery can power the
Standby bus only
How do you arm the standby power system
Press the STBY PWR switch light and insure the ARM indicator illuminates
Placing the battery switch to the EMER position causes the main aircraft battery to power
the Emergency bus
When operating on the standby and emergency buses only, you lose
Normal Landing Gear Extension
Flaps
Speed Brakes
With the STBY POWER in ARM on the Standby bus will be powered bu the Master Generator Switches are placed in the
EMER position and the Battery Switch is placed to OFF
Location and Positions of the MASTER L GEN and R GEN switches
Overhead board
NORM and EMER
Location and Positions of the MASTER L GEN and R GEN switches
Overhead board
NORM and EMER
The inverter select switch, located on the main circuit breaker panel has which positions
No. 1
OFF
No. 2
According to TO 1T-1A-1, the pilot should normally leave the AC voltmeter selector switch in
No. 1 INV
115 V
The No. 2 INVERTER powers the primary AC buses when
the inverter selector is in the No. 2 Position
The NO. 1 INVERTER receives power from
the LH Load Bus
The RH LOAD BUS normally powers
the No. 2 Inverter
If the AC BUS SHED annunciator on the copilot’s shroud panel is illuminated
the AC shed buses are depowered
Each inverter converts DC power into
25 and 115 volts AC
Each inverter converts DC power into
25 and 115 volts AC
Indications of left generator failure: MASTER CAUTION RESET switch lights flash and
L GEN OFF annunciator illuminates LH AMPS read zero RH AMPS read higher LH VOLTS read zero RH COLTS read normal No Loss of electrical equipment
If the. NO. 1 INVERTER fails and the distribution circuits are functioning properly
the No. 2 INVERTER powers the Primary AC Buses and Secondary AC Buses depower
If you’ve experienced a single inverter failure, set the inverter voltage select knob to
115 Volt position for the inverter that is powering the Primary bus
If the MASTER CAUTION RESET switch lights flash and the INV 2 FAIL annunciator illuminates, check the
Inverter and Inverter control circuit breakers for the No. 2 INVERTER
The NO 1 INVERTER has failed. The AC BUS SHED annunciator (on copilot’s shroud panel) illuminates when the
NO 2 INVERTER is powered by the EMER bus and is providing power to the Primary buses
BAT CUT OFF annunciator indicates the
Battery relay is open and battery charging will not occur
You notice an illuminated BATTERY FDR FAIL light on the overhead panel and there are no other indications. Per Section III, you turn the
Battery OFF.
Battery charging will not occur.
The EMER BUS FDR FAIL annunciator light illuminates and the EMER BUS FDR circuit breaker open, the
The Emergency bus is powered by the left load bus
A secondary indication of failure of the emergency bus feeder circuit is
an open EMER BUS FDR
