Electrical Systems Flashcards
Which systems use electrical power?
Actuators
Illumination
Heating
Avionics
Name at least one component of the electrical system: Generation, Regulation, Distribution, Utilisation, Auxiliary Systems
Gen- AC/DC Generators (Batteries) Reg- Constant speed drive Dist- Cabling Util- Electric motor Aux- Breakers
What types of currents are used on board, give a voltage and frequency for each
AC 115/270V 400Hz
DC 28V
What are the source of electric power on board?
AC/DC Generators and converters
How can we control the frequency in power generation?
Change the rotation speed of the generator
What does IDG mean?
Integrated Dive generator
What does CSD mean?
Constant Speed driver
What does VSCF mean?
Variable Speed Constant Frequency
What does VFG mean?
Variable Frequency Generation
How to convert AC to DC?
Use a Transformer Rectifying Unit (TRU)
How to convert DC to AC?
Based on static inverters, composed from electronic components and oscillating circuits
How can we store power on board?
Batteries
What types of batteries do you know?
Pb
Ni-Cd
Ag-Zn
Li-Ion
How to prevent electrostatic charges to damage the aircraft?
- Establish electrical continuity between all external structural elements of the aircraft
- Electrical charge sinks
- Aircraft grounding on landing
What is a Ram Air Turbine?
An air-driven generator
