Aeronautical Electrical System

The aeronautical electrical system works mainly with a Battery - 20230129064209 and an Alternator - 20230126105047. They're both switched on in normal operation.

A Regulator allows the alternator to provide exactly the power required by the servos.

Why is the Ammeter - 20230126110013 positive when starting?

After starting, the ammeter is positive because the battery has been discharged and must be recharged by the alternator.

Composition

Servitudes: Power consumers (lights, radio, etc..) supplied in series or parallel.
Alternator - 20230126105047
Battery - 20230129064209
Battery switch
Alternator - 20230126105047 switch
Park switch
Protections
Ammeter - 20230126110013
Voltmeter

In the event of a malfunction, the C.A.P.S procedure is used:

In case of blown circuit breaker or fuse :

Switch off the services supplied by the fuse.
Change the fuse or reset the circuit breaker.
Turn on the services one by one and identify if one of them is a problem, in this case turn it off for the rest of the flight.
Reset the circuit breaker.
Never force a protection**: only reset a circuit breaker once or replace a fuse once.

Negative current => Check fuse or circuit breaker ALT fuse.

Positive current => Regulator problem: switch off the alternator.

Relieve the electrical load by reducing the number of services used.

Beware of static electricity which may cause abnormal operation of the utilities.

The aircraft is equipped with a number of electrostatic dissipators to get rid of this electricity.

Once a fault has been dealt with, the B.A.D. sequence is carried out: