The alternator is mainly composed of the rotor, stator, excitation system, circuit control system and other parts. Among them, the rotor is the rotating part of the generator, the stator is the stationary part, and the excitation system provides a magnetic field between the rotor and the stator, thereby enabling the conductor to generate an electromotive force when moving in the magnetic field. The circuit control system is responsible for monitoring parameters such as voltage, current and power, and controlling the output of the generator.

The components that often need to be replaced during the maintenance of a rechargeable AC generator include: regulators, rectifiers, brushes, slip rings, collector rings and wiring, brush holders, brush springs, commutators, armature bearings, field coils, carbon brush holders, slip ring brush grips, wiring screws, etc. The frequently replaced components in the maintenance of AC generator sets for power supply output include: voltage plate (voltage regulator), rectifier bridge, stator coil, rotor coil, diode, light-receiving plate, light-emitting plate, etc. The detailed part numbers should be determined based on the specific model. Different brands and models may require different numbers of replaced maintenance parts!