Description should include the following concepts:
- Any circuit that includes a switch (or other control or measuring indicator) is a series circuit.
- Most aircraft are equipped with either a 14- or a 28-volt direct current (DC) electrical system.
- A basic aircraft electrical system consists of
- alternator/generator
- battery
- master/battery switch
- alternator/generator switch
- bus bar, fuses, and circuit breakers
- voltage regulator
- ammeter/load-meter
- associated electrical wiring.
- Engine-driven alternators or generators supply electric current to the electrical system. They also maintain a sufficient electrical charge in the battery.
- Electrical energy stored in a battery provides a source of electrical power for starting the engine and a limited supply of electrical power for use in the event the alternator or generator fails.
PLT107 and PLT207
Process/Skill Questions:
- What is a series circuit?
- What is an alternator, and what is its function?