Different Electrical Parts Used in the Aerospace Systems
The electrical systems are responsible for everything from the lighting and avionics to all the supplemental fuel pump and aircraft starter motor, and it is critical for proper operation of any contemporary aircraft.
A 14/28-volt DC electrical system is standard on many airplanes. Although some systems are more complex than others, the following aircraft electrical parts make up the basic airplane electrical system. You can get all of them from Parts Cage Inc.
- Alternator/generator switch
- Ammeter/load meter battery
- Bus bar
- Circuit breakers
- Master/battery switch
- Voltage regulator
The load meter is another electrical monitoring indication. The electrical load being imposed on the alternator/generator is displayed on this meter, which has a proper scale that starts at zero. The load meter represents the total load percentage placed on the electrical system’s generating capacity by electrical accessories and the batteries.
It solely includes the level of charging current required by the battery when all electronic parts are turned off.
Electrical faults and remedial actions
Generally, electrical failures are classified as any one of the following issues:
- Your battery is flat
- Insufficient charge available to the battery to do an engine start
- The generator or alternator is faulty and hence does not offer necessary electricity for running the electronic system and also charging the battery.
When diagnosing and attempting to remedy an issue, the first step is to check all circuit breakers and fuses to make sure that none have blown or burst.
If no MCBs have blown, the battery’s health can be determined by measuring the voltage between the two terminals, either with a voltmeter in the aircraft or physically at the battery with a multi-meter.
By knowing the normal battery voltage can help in determining whether the battery is dead. Because starting the engine necessitates a large current demand from the battery, it may not be ready to initiate the engine if indeed the battery is dead.
Inspect the battery terminal connections for ensuring they are properly situated on the battery (in case still present on the ground). The electrical problem could be caused by a bad connection having poor contact.
If the battery is fully charged and all electronic components are functioning, but the engine still won’t start, the problem could be with your ignition switch or starter motor. Well before the aircraft will be returned to operation, a licensed mechanic should inspect it.
Finally, a discharging on your ammeter or the flashing of the generator flashing light indicates an alternator failure in flight. As a result, once the battery is totally discharged, the electric circuit will cease to function.
If this happens while you are flying or there are no broken fuses or blown circuit breakers, it is a good idea to lower the electrical load amount as much as possible by turning off all non-essential electrical parts.
Because continuing a flight having a malfunctioning electrical system is not recommended, diverting to the designated safe landing pad should be the best alternative. The airplane ignition system is distinct from your electrical system, therefore the engine will never stop even if the electrical system fails completely.