Exam 3 Flashcards
Source that the pilot controls and which will allow sufficient operation of electrical equipment should the generator fail.
Primary Power
Engine driven device (alternator or generator) which generates power to supply all normal loads and charge the battery
Generated Power
An alternate power source that is arranged so that it is available to the pilot, even if the aircraft battery is dead (the 152 does not have one!).
Auxiliary Power
Strips of copper with holes drilled in them at appropriate intervals which are connected to one side of a row of circuit breakers and to incoming power
Busbars
Remove power from a component if the circuit becomes overloaded
Circuit Breakers
Perform basically the same function as a circuit breaker, but cannot be reset
Fuses
Used in an electric circuit for protection and current control.
Resistors
Electron “check valves”that allow the flow of electrons in one direction, but not in the opposite direction.
Diodes
Used to control the availability of power to various components.
Switches
Found in electrical systems to drive fuel booster pumps, flaps, etc.
Motors
Used exclusively in pitot tubes, windshield heat, etc.
Heating Elements
Used in flap switches and act in the same manner as normal switches.
Micro-Switches
Remote controlled electrical switches.
Relays
Lead acid
Battery
Completes the electrical circuit, which closes or opens the battery relay.
Masterswitch
Shows the rate of charge or discharge from the battery
Ammeter
Displays the load or amp draw placed on the alternator.
•Battery
•Electrical Equipment
Load Meter
A solenoid that when closed will supply electrical power to the starter.
Starter Relay
Completes an electrical circuit, which closes or opens the starter relay.
Starter Switch
Rotates the crankshaft for engine start.
Starter Motor
for reciprocating engines FAR’s Require the following:
- Two separate spark plugs for each cylinder
* Two separate circuits and sources of electrical energy, supplying spark to each cylinder.
Magneto Ignition System Operating Principals
- The magneto system consists of a rotating magnet and the core of the magneto coil.
- The rotating magnet is a permanent magnet.
- The core of the magneto coil is a conductor.
- As the magneto rotates, the core of the magneto coil cuts the lines of flux in the magnet, thereby inducing EMF in the core.
Consists of the primary winding of the coil, the breaker points, the capacitor, and the ignition switch.
Primary Circuit
Consists of approx 200 turns of copper wire wound over the core.
Primary Windings