C172S Electrical System. Save. Flashcards; Learn; Test; Match; Get a hint. Alternator. Belt-driven 28 volt 60 ampere Powers the electrical system, controlled by the red ALT MASTER switch.. Houses all of the relays used in the electrical system, as well as the Alternator Control Unit and the External Power connector.. C172S Electrical System. Engine: Shutdown. EPU: Disconnected. Master. Breakers. Switches. Menu. Created by Everette Johnson • Neil Nowatzki Aerospace Network. Electrical system data is displayed at the bottom of the Engine Indication System (EIS) bar along the left side of the MFD. Main bus voltage is measured at the WARN circuit breaker.
The airplane is equipped with a 28-volt direct current (DC) electrical system consisting of a belt-driven 60-ampere alternator and a 24- volt main storage battery. Individual system circuit breakers are found on the circuit breaker panel below the pilot's control wheel. All circuit breakers are "pullable" for electrical load management.. The primary function of an aircraft electrical system is to generate, regulate, and distribute electrical power throughout the aircraft. There are several different power sources on aircraft to power the aircraft electrical systems. These power sources include: engine-driven alternating current (AC) generators, auxiliary power units (APUs), and.