Electrical Supply Flashcards
Three individual electrical system?
AC (primary)
DC (secondary)
Emergency system
The primary system (AC) powered by engine driven ac generators, distributes power to?
Gen buses Essential ac buses 26vac transformer Transformer rectifier buses Essential dc buses Warning buses Battery bus
What power the emergency system?
Hydraulic driven ac generator & include a transformer rectifiers.
The primary power supply system consist of two direct?
Engine driven AC gen
90/60 kVa 100 amp
The generator are each rated at a maximum of ____ when aircraft is in Beta.
60 kVa
In Alpha range, the generators each rated to a maximum of?
90 kVa
What cause the supervisory panel trip off the generators?
Over voltage Under voltage Under frequency Feeder fault Phase current imbalance
DC electrical power, the secondary system provides?
28 Vdc power from two 100 a transformer rectifier.
If both transformer rectifier fail, what operation is automatically initiated?
Emergency generator
The battery and battery bus are part of _________ system.
Secondary
The battery keep fully charge by power from the _____ transformer rectifier bus.
Left
What will not power with left generator on only?
T- handles & engine fire extinguisher.
What emergency electrical power supplies?
Hydraulically operated 10 kVa ac generator and a 50 amp transformer rectifier.
What held close emergency generator shutoff valve?
28 Vdc from warning bus no.2
Generator TEST switch is a mandatory position for use under _________ conditions.
No-load
AC bus tie switch
Set to ON. If generator fail, buses received power from the operating generator.
External electrical power
Monitor in the a/c electrical system, preventing application of power of improper phase sequence, frequency, or voltage.
(From the NC-10)
Circuit breaker type?
Thermal trip free (reducing fire hazard).
The air/ground safety switches are mounted on?
The main landing gear struts.
The passenger/cargo compartment lighting consists of?
Dome, aisle or curb light, cargo floodinglights, cargo ramp dome light, reading lights, panel lights, emergency exit lights.
Passenger advisory system
Provides a means of making the pax aware of action required of them from various flight conditions or evolutions.
How many cabin pax advisory lights?
Six
Prepare for Catapult Arrested ldg Ditching No smoke Fasten seat belt
Exterior lighting system
Anti-collision Position Carrier alignment Taxi/ldg ing Nose-wheel flood
Anti-collision Strobe lights
Red or white, white are disable on the ground. Located at up right vert stab and low fuselage front.
What is the bus tie for?
To share the load, in the event of Gen fail, T/R fail. So the working system can back up the fail system.
The battery is kept fully charged by power from the?
left transformer-rectifier bus.
What hydraulic system to operate the emergency generator hydraulic motor?
Combine hydraulic system.
hydraulic power for operation of the emergency system can be provided by an auxiliary hydraulic pump driven by?
The APU
The Emergency transformer rectifier provides 28 VDC to?
Essential dc buses, the warning bus no. 1, and battery bus.
Emergency transformer rectifier on fire, what circuit breaker need to pull?
Warning bus no. 2 (MEDB ROW 3)
TACAN BOX ON FIRE
MEDB BOTTOM ROW
TCAS ON FIRE
MEDB ROW 11
What DC power distribute power to?
L & R TR bus, essential DC buses, warning bus and battery bus.
What generator fault conditions that can automatically reconnect by sup panel?
Under frequency
The emergency exit light consist of?
Electroluminescent strip lighting and portable emergency lights.
The four potable battery operated emergency exit lights are where?
- Above bailout hatches
2-3. Cabin near ditching hatches - Ramp near the center cargo doors
What are the exterior lighting system?
Anti collision lights, position lights, carrier alignment light, taxi/landing light and nosewheel flooding light.
Right wing position light color?
Green
Left wing position light color?
Red
Tail position light color?
White
What aircraft indication, the position lights provide?
Altitude and direction
What color is the Carrier Alignment Light?
Amber
What disable the white anti collision strobe light on the ground?
Weight on wheels (WOW)
How long the generator secondary bearing will provided?
10 hours
Land as soon as practical
What the external power monitor do?
Prevents application of power of improper phase sequence, frequency, or voltage.
Can the ac bus tie be made on external power connector is energize?
No
