Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task A. Fundamentals of Electricity and Electronics

AM.I.A.S7

Skill

Read and interpret aircraft electrical circuit diagrams, and symbols, including solid state devices and logic functions.

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Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 9-45
Chapter 9: Aircraft Electrical System › Aircraft Electrical Systems › Small Single-Engine Aircraft
contactor would disconnect the alternator from the bus. Figure 9-82. Schematic GCU control of the exciter field magnetism. Aircraft Electrical Systems Virtually all aircraft contain some form of an electrical system. The most basic aircraft must produce electricity ... operation of the engine’s ignition system. Modern aircraft have complex electrical systems that control almost every aspect of flight. In general, electrical systems can be divided into different categories according to the function of the system. Common systems include…
Aviation Maintenance Technician Handbook - Powerplant p. 4-70
Chapter 4: Engine Ignition & Electrical Systems › Electrical Equipment Installation › Electrical Load Limits
Electrical Equipment Installation This section provides general procedures and safety precautions for installation of commonly used aircraft electrical equipment and components. Electrical load limits, acceptable means of controlling or monitoring electrical loads, and circuit protection devices are subjects with which ... mechanics must be familiar to properly install and maintain aircraft electrical systems. Electrical Load Limits When installing additional electrical equipment that consumes electrical power in an aircraft, the total electrical load must be safely controlled or managed within the rated…
Pilot's Handbook of Aeronautical Knowledge p. 7-30
Chapter 7: Aircraft Systems › Electrical System
Electrical System Most aircraft are equipped with either a 14- or a 28-volt direct current (DC) electrical system. A basic aircraft electrical system consists of the following components: Alternator/generator Battery Master/battery switch • Alternator/generator switch • Bus bar, fuses, and circuit ... breakers • Voltage regulator • Ammeter/loadmeter • 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…